Journal articles: 'Plant soil relations'

1

Augé, Robert M. "Arbuscular mycorrhizae and soil/plant water relations." Canadian Journal of Soil Science 84, no. 4 (November 1, 2004): 373–81. http://dx.doi.org/10.4141/s04-002.

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The water relations of arbuscular mycorrhizal (AM) plants have been compared often. However, virtually nothing is known about the comparative water relations of AM and nonAM soils or about the relative influence of AM colonization of soil vs. AM colonization of plants on host water balance. In this review, I summarize findings that support the assertion that colonization of soil may play as important a role as colonization of roots regarding how AM symbiosis affects the water relations of host plants. We observed a slight but significant AM effect on the soil moisture characteristic curve of a Sequatchie fine sandy loam following 7 mo of mycorrhization by Glomus intraradices/Vigna unguiculata. In a separate study, few AM effects on either the wet or dry hysteretic curves were discernible after 12 mo of mycorrhization by G. intraradices or Gigaspora margarita on roots of Phaseolus vulgaris. Using myc- bean mutants, we determined that about half of the considerable promotion of stomatal conductance by G. intraradices and Gi. margarita was attributable to soil colonization and about half to plant colonization. A path analysis modeling approach revealed that soil hyphal colonization had larger direct and total effects on dehydration tolerance of bean than did root hyphal colonization or several other soil or plant variables. Key words: Mycorrhizal symbiosis, soil moisture characteristic, stomatal conductance, water relations

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2

Read, John. "Know Your Community: Soil-Plant-Water Relations." CSA News 60, no. 5 (May 2015): 22–23. http://dx.doi.org/10.2134/csa2015-60-5-11.

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3

Hopmans, Jan W. "Principles of Soil and Plant Water Relations." Vadose Zone Journal 5, no. 1 (January 2006): 506. http://dx.doi.org/10.2136/vzj2005.0100br.

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Yanosky, T. M. "Principles of Soil and Plant Water Relations." Journal of Environmental Quality 34, no. 4 (July 2005): 1452–53. http://dx.doi.org/10.2134/jeq2005.0006br.

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Roberts, John. "Principles of soil and plant water relations." Weather 61, no. 3 (March 1, 2006): 90. http://dx.doi.org/10.1256/wea.267.04.

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Rubio, Agustín, Agustín Merino, and Alfredo Blanco. "Soil–plant relations in Mediterranean forest environments." European Journal of Forest Research 129, no. 1 (December 9, 2009): 1–3. http://dx.doi.org/10.1007/s10342-009-0329-8.

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7

Prorok, V. V., A. P. Ganushevich, T. I. Makarenko, V. V. Ostashko, L. V. Poperenko, and L. Yu Melnichenko. "Strontium and Calcium Relations in Plant and Soil Solution on Chornobyl-Affected Areas." Ukrainian Journal of Physics 59, no. 3 (March 2014): 233–37. http://dx.doi.org/10.15407/ujpe59.03.0233.

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Ola-Adams, B. A., and John B. Hall. "Soil–plant relations in a natural forest inviolate plot at Akure, Nigeria." Journal of Tropical Ecology 3, no. 1 (February 1987): 57–74. http://dx.doi.org/10.1017/s0266467400001115.

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ABSTRACTTo up-date and extend knowledge of the Akure Strict Natural Reserve an assessment, block by block, of forest in the core of the Inviolate Plot was undertaken in 1974 and complemented with soil sampling. Principal components analysis indicated a gradient of soil reaction and available phosphorus through the core of the plot. Ordination (DECORANA) of floristic data revealed that a floristic trend paralleled the soil trend. In the vicinity of a drainage line, at the western end of the core, soils were lower in available phosphorus, more acid, sandier and texturally more uniform with depth. Typical trees of ferralsols were prominent on these soils but were replaced by species of ferric luvisols, especially members of the Sterculiaceae, on soils of superior nutrient status towards the eastern end. It is suggested that the soil gradients were not effects produced by the trees.Comparison of a 1946 data set with the 1974 data supported the view that the forest had been structurally and floristically stable over the interval between assessments. This is considered justification of the original choice of the area as a Strict Natural Reserve representative of high forest in this part of Nigeria.

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Blecker, S. W., L. L. Stillings, N. M. DeCrappeo, and J. A. Ippolito. "Soil-Plant-Microbial Relations in Hydrothermally Altered Soils of Northern California." Soil Science Society of America Journal 78, no. 2 (February 21, 2014): 509–19. http://dx.doi.org/10.2136/sssaj2013.07.0298.

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Shevchenko, A. V., I. G. Budzanivska, T. P. Shevchenko, and V. P. Polischuk. "Stress caused by plant virus infection in presence of heavy metals." Plant Protection Science 38, SI 2 - 6th Conf EFPP 2002 (December 31, 2017): 455–57. http://dx.doi.org/10.17221/10522-pps.

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Due to increased heavy metal content in Ukrainian soils, purpose of the work was to study relations between presence of heavy metals in soil and their effect on development of phytoviral infection. Experiments were conducted in Nicotiana tabacum – Potato virus X model system. Soluble salts of Cu, Zn and Pb were deposited in soil separately at the limiting concentrations simultaneously with virus infection of plants. Infected plants grown on usual soil showed symptoms of disease on 16 dpi as well as plants grown on soil with metals deposited. Contrary, combined effect of heavy metals and virus infection caused an increase of chlorophyll content comparing with control plants, therefore effect of heavy metals partially compensated the effect of virus infection on experimental plants.

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Joseph, Cecillia M., and Donald A. Phillips. "Metabolites from soil bacteria affect plant water relations." Plant Physiology and Biochemistry 41, no. 2 (February 2003): 189–92. http://dx.doi.org/10.1016/s0981-9428(02)00021-9.

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12

Harasimiuk, Andrzej, and Magdalena Cyrczak. "Soil – Plant Relations on Sandy Grassland in the Middle Vistula River Valley." Miscellanea Geographica 11, no. 1 (December 1, 2004): 41–50. http://dx.doi.org/10.2478/mgrsd-2004-0005.

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Abstract The paper is on environmental condition of sandy grassland on alluvial deposits. The soil and phytosociological study ware conducted south of Warsaw in middle Vistula river valley. Listing of vascular plants and shallow soil sampling were made in order to answer the question of plant and soil relationship. Standard chemical determination directed on trophism were done in plant and soil material. The spatial distribution of chemical parameters of plants and soils is related to local microrelief and distance of Vistula river. The plants dominating the study prefer less fertile habitats. The soil is being enriched by water from the Vistula river. High carbon content is correlated with the presence of the Salix arenaria. The greater the share of vegetation not belonging to the grass family, the greater the carbon content. Potassium and phosphorus looks like to be the less plant-dependent elements. Its documents an initial stage of development of the Vistula river valley environment.

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13

Deng, Zijuan, Huade Guan, John Hutson, Michael A. Forster, Yunquan Wang, and Craig T. Simmons. "A vegetation‐focused soil‐plant‐atmospheric continuum model to study hydrodynamic soil‐plant water relations." Water Resources Research 53, no. 6 (June 2017): 4965–83. http://dx.doi.org/10.1002/2017wr020467.

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14

Wilcox-Lee, Darlene. "Soil Matric Potential, Plant Water Relations, and Growth in Asparagus." HortScience 22, no. 1 (February 1987): 22–24. http://dx.doi.org/10.21273/hortsci.22.1.22.

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Abstract Soil moisture treatments were initiated in a greenhouse study using 14-weekold asparagus (Asparagus officinalis L. cv. Jersey Giant) seedlings. Treatments consisted of drying pots to a minimum soil matric potential ranging from –0 .0 5 to –1 .5 MPa prior to rewatering. After 10 weeks, root and fern dry weights, fern height, and shoot number were reduced by reducing soil moisture, with the largest decreases occurring between soil matric potentials of –0 .0 5 and –0 .1 MPa. Root : shoot ratios increased with decreasing soil moisture. In a growth chamber study, 4-month-old seedlings were watered to pot capacity and allowed to dry to a soil matric potential of —1.5 MPa. Xylem potential, relative water content (RWC), and shoot growth were measured daily as soil dried from field capacity to —1.5 MPa. Xylem potential was correlated with growth or RWC. Shoot growth ceased at a fern xylem potential of —1.8 MPa. RWC was reduced from ≈95% at pot capacity to 80% at a soil matric potential of — 1.5 MPa. These data indicate that asparagus exhibits characteristics of drought-tolerance. However, despite its apparent drought-tolerance, maximum growth occurs in young asparagus plants when soil water potential is close to field capacity, indicating that consistent irrigation would be beneficial in newly established plantings.

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Bogosavljevic, Jelena, Aleksandar Djordjevic, Urban Silc, Zora Dajic-Stevanovic, Svetlana Acic, and Svjetlana Radmanovic. "Characterization of soils on consolidated limestone and its relations to grassland vegetation." Archives of Biological Sciences, no. 00 (2023): 6. http://dx.doi.org/10.2298/abs230106006b.

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Understanding the relations between soil features and plant responses is important for agricultural production and nature conservation. The aim of this study was to investigate the importance of the influence of soils? physical and chemical features on the composition of plant species and richness in grasslands studied on the limestone massif in eastern Serbia (Mt. Rtanj). The data set included 22 phytosociological relev?s, the same number of corresponding mixed soil samples (0-10 cm depth) and 8 soil profiles. Two vegetation types were distinguished by numerical classification as Saturejion montanae and Festucion valesiacae. The results of detrended correspondence analysis (DCA) indicated that the most important soil parameters affecting species composition in dry grasslands were humus, the content of calcium, soil exchange capacity and base saturation, in addition to total acidity, pH and soil depth. The communities of both vegetation types are developed on Leptosols and Phaeozems. Under similar physical and chemical conditions of the soil, the grassland vegetation exhibits differences in floristic composition.

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16

Chapin, David M., and L. C. Bliss. "Soil–plant water relations of two subalpine herbs from Mount St. Helens." Canadian Journal of Botany 66, no. 5 (May 1, 1988): 809–18. http://dx.doi.org/10.1139/b88-118.

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The subalpine environment of Mount St. Helens and other southern Cascade volcanoes is characterized by porous, pyroclastic soils and summer droughts. To evaluate plant drought stress in this environment, we examined plant water relations of Eriogonum pyrolifolium, a wintergreen, shallow-rooted, rosette perennial, and Polygonum newberryi, a deciduous, deep-rooted semierect perennial (both in Polygonaceae), at a subalpine site (elevation 1575 m) on Mount St. Helens. In a very dry summer, soil moisture below 20 cm remained above −0.1 MPa, but surface tephra deposits developed soil water potentials below −4.0 MPa. Surface tephra deposits had a mulching effect on underlying pre-eruption soils. Predawn xylem pressure potentials for adults of each species were never below −0.8 MPa, but midday xylem pressure potentials were often measured near or below the estimated turgor-loss point when vapor pressure deficits were high (maximum 3.1 kPa). Compared with Polygonum, Eriogonum had lower xylem pressure potentials, a lower turgor-loss point (mean −1.00 and −1.42 MPa, respectively), and higher conductance. In both species there was no midday depression in leaf conductance and little photosynthetic response to high evaporative demand. Thus, these species are not particularly conservative in water use and appear to rely on abundant soil moisture throughout the short growing season.

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17

Bartholomeus, Harm, Gabriela Schaepman-Strub, Daan Blok, Roman Sofronov, and Sergey Udaltsov. "Spectral Estimation of Soil Properties in Siberian Tundra Soils and Relations with Plant Species Composition." Applied and Environmental Soil Science 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/241535.

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Predicted global warming will be most pronounced in the Arctic and will severely affect permafrost environments. Due to its large spatial extent and large stocks of soil organic carbon, changes to organic matter decomposition rates and associated carbon fluxes in Arctic permafrost soils will significantly impact the global carbon cycle. We explore the potential of soil spectroscopy to estimate soil carbon properties and investigate the relation between soil properties and vegetation composition. Soil samples are collected in Siberia, and vegetation descriptions are made at each sample point. First, laboratory-determined soil properties are related to the spectral reflectance of wet and dried samples using partial least squares regression (PLSR) and stepwise multiple linear regression (SMLR). SMLR, using selected wavelengths related with C and N, yields high calibration accuracies for C and N. PLSR yields a good prediction model for K and a moderate model for pH. Using these models, soil properties are determined for a larger number of samples, and soil properties are related to plant species composition. This analysis shows that variation of soil properties is large within vegetation classes, but vegetation composition can be used for qualitative estimation of soil properties.

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18

Carmean, Willard H., and Janjun Li. "Soil-Site Relations for Trembling Aspen in Northwest Ontario." Northern Journal of Applied Forestry 15, no. 3 (September 1, 1998): 146–53. http://dx.doi.org/10.1093/njaf/15.3.146.

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Abstract Past harvesting in Northwest Ontario has produced increased regeneration and increased forest areas supporting trembling aspen stands, resulting in greatly increased utilization of aspen. Thus there is a critical need to accurately estimate site quality and growth and yield for trembling aspen and for identifying productive sites where more intensive aspen forest management can be practiced. Soil-site relations were studied using 95 plots located in mature, fully stocked, evenaged, undisturbed trembling aspen stands. On each plot site index (SIBH50) estimation was based on stem analysis of three to five dominant and codominant trees. Each plot also had soil profile descriptions and soil analyses for four major soil horizons (A, B, BC, C). Plots were located on morainal soils, glaciofluvial soils, and lacustrine soils. Multiple regression analyses showed: (a) for morainal soils site index was correlated (adj R² = 0.63) to depth to a root restricting layer, silt plus clay content of the A horizon, and coarse fragment content of the C horizon; (b) for glaciofluvial soils site index was correlated (adj R² = 0.64) to depth to a root restricting layer and to drainage class: and (c) for lacustrine soils site index was correlated (adj R² = 0.65) to depth to mottles and to clay content of the C horizon. Results are applicable only to medium and good sites where mature, fully stocked, merchantable trembling aspen stands commonly occur. North. J. Appl. For. 15(3):146-153.

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Augé, Robert M., David M. Sylvia, Soon Park, Brian R. Buttery, Arnold M. Saxton, Jennifer L. Moore, and Keunho Cho. "Partitioning mycorrhizal influence on water relations of Phaseolus vulgaris into soil and plant components." Canadian Journal of Botany 82, no. 4 (April 1, 2004): 503–14. http://dx.doi.org/10.1139/b04-020.

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There is growing appreciation of arbuscular mycorrhizal effects on soil properties and their potential consequences on plant behavior. We examined the possibility that mycorrhizal soil may directly influence plant water relations. Using wild-type and noncolonizing bean mutants planted into soils previously produced using mycorrhizal or nonmycorrhizal sorghum plants, we partitioned mycorrhizal influence on stomatal conductance and drought resistance into soil and root components, testing whether effects of mycorrhizal fungi occurred mostly via mycorrhization of roots, mycorrhization of soil, or both. The mutation itself had no effect on any water relations parameter. Colonization by Gigaspora margarita Gerdemann & Trappe and Glomus intraradices Schenck & Smith had appreciable effects on leaf water potential at the lethal point and on osmotic adjustment, relative to nonmycorrhizal plants of comparable size. Mycorrhizal effects on drought resistance were attributable to an effect on the plant itself rather than to an effect of mycorrhizal soil. Mycorrhizal effects on stomatal conductance were attributable to mycorrhization of both roots and soil, as well as to mycorrhization of roots alone. Surprisingly, merely growing in a mycorrhizal soil resulted in promotion of stomatal conductance of nonmycorrhizal plants in both amply watered and droughted plants. Mycorrhizal effects on droughted plants did not appear to be related to altered soil water retention properties, as Gigaspora margarita and Glomus intraradices altered the soil's moisture characteristic curve only slightly.Key words: arbuscular mycorrhizal symbiosis, bean, drought, Gigaspora margarita, Glomus intraradices, stomatal conductance.

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Medeiros, Ian D., Nishanta Rajakaruna, and Earl B. Alexander. "Gabbro Soil-Plant Relations in the California Floristic Province." Madroño 62, no. 2 (April 2015): 75–87. http://dx.doi.org/10.3120/0024-9637-62.2.75.

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21

Higashida, Shuji, and Kinya Takao. "Relations between Soil Microbial Activity and Soil Properties in Grassland." Soil Science and Plant Nutrition 32, no. 4 (December 1986): 587–97. http://dx.doi.org/10.1080/00380768.1986.10557540.

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Castelli, Regine M., Jeanne C. Chambers, and Robin J. Tausch. "Soil-plant relations along a soil-water gradient in great basin riparian meadows." Wetlands 20, no. 2 (June 2000): 251–66. http://dx.doi.org/10.1672/0277-5212(2000)020[0251:spraas]2.0.co;2.

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23

Podlešáková, E., J. Němeček, and R. Vácha. "Critical values of trace elements in soils from the viewpoint of the transfer pathway soil – plant." Plant, Soil and Environment 48, No. 5 (December 11, 2011): 193–202. http://dx.doi.org/10.17221/4224-pse.

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The development of soil limiting values of the protection of the quantity and mainly quality of the crop production tends from empiric values towards critical values, based on ecotoxicity. We present an attempt to derive transfer functions by the means of multiple regression analysis. The substitution of trace elements contents in crops in the prediction equations for fodder or food standards or phytotoxicity limits satisfies the present ecotoxicological demands. We preferred polyfactor relations to simple ones. The exceeding of reference values must be verified by the determination of the hazardous transfer in the field. Therefore the reference values are called testing values. They were derived especially for Cd, Pb, As, Cu, Zn, Ni and Mn. For some trace elements, only protective values can be set up (especially for Cr, Hg, but also for Tl, Be, V). They reflect minimum values that guarantee growing crops without any risks. Experimental data (pot trials) were compared with results obtained in field investigations. The resulting critical values were also compared with the values proposed in Germany.

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24

Rengasamy, P., and KA Olsson. "Sodicity and soil structure." Soil Research 29, no. 6 (1991): 935. http://dx.doi.org/10.1071/sr9910935.

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Sodic soils are widespread in Australia reflecting the predominance of sodium chloride in groundwaters and soil solutions. Sodic soils are subject to severe structural degradation and restrict plant performance through poor soil-water and soil-air relations. Sodicity is shown to be a latent problem in saline-sodic soils where deleterious effects are evident only after leaching profiles free of salts. A classification of sodic soils based on sodium adsorption ratio, pH and electrolyte conductivity is outlined. Current understanding of the processes and the component mechanisms of sodic soil behaviour are integrated to form the necessary bases for practical solutions in the long term and to define areas for research. The principles of organic and biological amelioration of sodicity, as alternatives to costly inorganic amendments, are discussed.

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Ruzieva, Inobat, Inobat Ruzieva, Islom Xaitov, and Ulug`berdi Xursanov. "CORRELATION RELATIONS BETWEEN VALUABLE IRRIGATED SOIL PROPERTIES AND PLANT PRODUCTIVITY." JOURNAL OF AGRO PROCESSING 5, no. 2 (May 30, 2020): 37–42. http://dx.doi.org/10.26739/2181-9904-2020-5-7.

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26

Hubbert, K. R., J. L. Beyers, and R. C. Graham. "Roles of weathered bedrock and soil in seasonal water relations of Pinus Jeffreyi and Arctostaphylos patula." Canadian Journal of Forest Research 31, no. 11 (November 1, 2001): 1947–57. http://dx.doi.org/10.1139/x01-136.

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In the southern Sierra Nevada, California, relatively thin soils overlie granitic bedrock that is weathered to depths of several metres. The weathered granitic bedrock is porous and has a plant-available water capacity of 0.124 m3·m3, compared with 0.196 m3·m3 for the overlying soil. Roots confined within bedrock joint fractures access this rock-held water, especially during late summer when overlying soils are dry. We sought to determine seasonal soil and bedrock water changes in a Jeffrey pine (Pinus jeffreyi Grev & Balf.) plantation and to examine concurrent effects on the water relations of Jeffrey pine and greenleaf manzanita (Arctostaphylos patula Greene). In 1996, plant-available water in the 75 cm thick soil was depleted by late June, with soil water potential (ψsoil) <2.2 MPa, but below 75 cm, bedrock water potential (ψbedrock) was still > 2.2 MPa. Thus, the bedrock, not the soil, supplied water to plants for the remainder of the dry season. Higher values of, and smaller fluctuations in, seasonal predawn pressure potential (ψpredawn) for Jeffrey pine indicated that it is deeply rooted, whereas active roots of greenleaf manzanita were interpreted to be mostly within the upper 100 cm. The extra rooting volume supplied by weathered bedrock is especially important to pine relative to manzanita.

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27

Li, Ge, Huaiyu Long, Renlian Zhang, Patrick J. Drohan, Aiguo Xu, and Li Niu. "Stable Soil Moisture Alleviates Water Stress and Improves Morphogenesis of Tomato Seedlings." Horticulturae 9, no. 3 (March 17, 2023): 391. http://dx.doi.org/10.3390/horticulturae9030391.

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Previous studies on soil water–plant relations have mostly focused on the soil water content (SWC), while the effect of soil moisture stability on plant growth has received surprisingly little attention. Potted tomato seedlings were used to examine the effect of stable soil moisture (SM) and fluctuating soil moisture (FM) on plant growth, development, and water use efficiency (WUE) in this study. The results showed that (i) soil moisture stability significantly affected the growth and development, photosynthetic characteristics, morphological traits, root morphology, and water physiological characteristics of seedling tomatoes, with SM being more conducive for most of these indices. (ii) SM improved the leaf WUE by reducing the content of abscisic acid in plants, regulating plant osmotic substances, maintaining a high gas exchange rate, and promoting plant morphology. (iii) SM could avoid water stress on tomato seedlings; even if the SWC of SM was equal to or lower than the SWC of FM, water stress would not occur under SM, whereas it would occur under FM. Overall, compared with FM, SM promoted beneficial plant morphology, maintained a high gas exchange rate, and did not induce water stress for tomato seedlings—ultimately improving WUE. This effect was more effective under low-SWC conditions than under high-SWC conditions. These findings provide a new perspective and theoretical basis for soil water–plant relations and indicate that SM has great potential in promoting plant growth and improving WUE.

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Skuodienė, Regina, Vilija Matyžiūtė, and Gintaras Šiaudinis. "Soil Seed Banks and Their Relation to Soil Properties in Hilly Landscapes." Plants 13, no. 1 (December 29, 2023): 104. http://dx.doi.org/10.3390/plants13010104.

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For the prevention of hilly soils from erosion, a smart selection of crop rotations is very important. The aim of this study was to investigate the influence of different agrophytocenoses on seed numbers in the soil runoff sediments and soil seed banks’ relations to soil properties in hilly landscapes. This study analyzes long-term monitoring data from three different agrophytocenoses (permanent grassland, cereal–grass crop rotation and crop rotation with a row crop) set up on slopes of 9–11° steepness with collectors for soil and water installed. The soil of the southern exposition slope was a slightly eroded Eutric Retisol. In the soil of permanent grassland, the number of seeds was 4036 seeds m−2, 6.0 and 3.2 times smaller compared to cereal–grass crop rotation and crop rotation with a row crop. The seeds found in the soil runoff sediments composed, on average, 0.9% of the soil seed bank, and the number of seeds depended on the number of days with heavy precipitation during the plant vegetation period, as well as on the plant communities grown in a particular rotation. Correlation analysis showed the seed numbers’ dependence on the soil’s chemical and physical properties. Hill slopes were not affected by water erosion, when agrophytocenoses were based on perennial grassland and also cereal–grass crop rotation, where reduced soil tillage was applied.

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Balláné Kovács, Andrea, Sándorné Kincses, and Péter Tamás Nagy. "Evaluation of KCl-EDTA-, CaCl2- DTPA-, CaCl2-DTPA-TEA extractants for estimating available Cu in soils." Acta Agraria Debreceniensis, no. 27 (November 15, 2007): 5–9. http://dx.doi.org/10.34101/actaagrar/27/3092.

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KCl-EDTA-, CaCl2-DTPA-, CaCl2-DTPA-TEA extractionmethods were compared to determine the plant available Cuamounts in the soil samples. In the soil extracts, the amounts ofcopper were measurable. In the buffered CaCl2-DTPA-TEAextracts, data showed the lowest values.On the applied soils, a correlation was observed betweenplant removal and soil Cu using extractants mentioned above. Theclosest correlation appeared in the case of sandy soils.From the results of statistical analysis, it appears that soilproperties may play role in the efficiency of the extraction usingeither CaCl2-DTPA or KCl-EDTA solutions.To establish more reliable relations, further studies withdifferent types of soils are needed.

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Koch, Mirjam T., Elke Pawelzik, and Timo Kautz. "Chloride Changes Soil–Plant Water Relations in Potato (Solanum tuberosum L.)." Agronomy 11, no. 4 (April 10, 2021): 736. http://dx.doi.org/10.3390/agronomy11040736.

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There is evidence that chloride (Cl―) can lead to both an improved hydration and water use efficiency in plants due to its osmotic properties. The potato crop is widely assumed to be sensitive to Cl―. This is based on studies which found tuber yield or tuber starch reductions following a Cl― fertilization. However, there are also contradictory reports which could not find any detrimental effect of Cl― fertilization on potato plant development. As potato is inefficient in the use of water, we aimed to test if it is possible to improve the hydration status of potato without reducing tuber yield and dry matter by means of Cl― fertilization. We conducted a pot experiment with four different Cl― doses and investigated soil–plant water relations, biomass, tuber yield and dry matter development. Our findings deliver an indication that the potato crop is much less sensitive to Cl― than previously assumed and, more importantly, that a Cl― supply can indeed improve the potato shoot water status. This happened without impairing tuber yield and dry matter. Since potato is very sensitive to drought stress, we assume that Cl― fertilization is a promising measure to improve the drought resilience of potato.

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KARAGÜZEL, Ü. Ö., and C. F. ÖZKAN. "SOIL AND PLANT RELATIONS OF SOME ORNITHOGALUM (ENDEMIC/NON ENDEMIC) SPECIES." Applied Ecology and Environmental Research 17, no. 2 (2019): 3107–21. http://dx.doi.org/10.15666/aeer/1702_31073121.

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32

Carlson, D. H., S. H. Sharrow, W. H. Emmingham, and D. P. Lavender. "Plant-soil-water relations in forestry and silvopastoral systems in Oregon." Agroforestry Systems 25, no. 1 (January 1994): 1–12. http://dx.doi.org/10.1007/bf00705702.

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33

Curtin, D., H. Steppuhn, and F. Selles. "Plant Responses to Sulfate and Chloride Salinity: Growth and Ionic Relations." Soil Science Society of America Journal 57, no. 5 (September 1993): 1304–10. http://dx.doi.org/10.2136/sssaj1993.03615995005700050024x.

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34

Gerzabek, Martin H., Yasuyuki Muramatsu, Friederike Strebl, and Satoshi Yoshida. "Iodine and bromine contents of some Austrian soils and relations to soil characteristics." Journal of Plant Nutrition and Soil Science 162, no. 4 (August 1999): 415–19. http://dx.doi.org/10.1002/(sici)1522-2624(199908)162:4<415::aid-jpln415>3.0.co;2-b.

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Workneh, F., X. B. Yang, and G. L. Tylka. "Soybean Brown Stem Rot, Phytophthora sojae, and Heterodera glycines Affected by Soil Texture and Tillage Relations." Phytopathology® 89, no. 10 (October 1999): 844–50. http://dx.doi.org/10.1094/phyto.1999.89.10.844.

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Investigations were conducted to determine whether the effects of tillage practices on the prevalence of brown stem rot of soybean (caused by Phialophora gregata), Heterodera glycines, and Phytophthora sojae were confounded by soil texture in samples collected in the fall of 1995 and 1996. Soil and soybean stem samples, along with tillage information, were collected from 1,462 randomly selected fields in Illinois, Iowa, Minnesota, Missouri, and Ohio in collaboration with the National Agricultural Statistics Service. The incidence of brown stem rot was determined from 20 soybean stem pieces collected from each field in a zigzag pattern. The detection frequency of P. sojae (expressed as percent leaf disks colonized) and population densities of H. glycines were determined from soil cores also collected in a zigzag pattern. The soil samples were grouped into various textural classes, and the effect of soil texture and tillage relations on the activities of each pathogen were determined. Both tillage and soil texture affected the incidence of brown stem rot; however, there was no interaction between tillage and soil texture. Conservation tillage had a greater (P < 0.05) incidence of brown stem rot in clay loam and silty clay loam than did conventional tillage. The detection frequency of P. sojae was not affected by tillage, but a tillage × texture interaction (P = 0.013) indicated that the effect of tillage depended on soil texture. There was a greater (P < 0.05) detection frequency of P. sojae in conservation tillage than in conventional tillage in silt loam and loam soils. However, in sandy loam, the detection frequency of P. sojae was greater (P = 0.0099) in conventional tillage than in conservation tillage. Population densities of H. glycines were significantly affected by both tillage and soil texture, but overall, there was no tillage × texture interaction. There was an inverse relationship between population densities of H. glycines and percent clay (r = -0.81, P = 0.01) in no-till fields, but little or no change in nematode densities was observed with increasing clay content in tilled fields. Population densities of H. glycines were less (P < 0.05) in no-till fields than in tilled fields in silty clay loam and clay soils. There was no difference in H. glycines densities between the tillage categories in soils sandier than silty clay loam or clay. The findings emphasize the need for cautious interpretation of the effects of tillage practices on diseases and pathogens in the absence of information on soil texture.

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DanielovičI, Š. Tóth, A. Marcinčinová, and V. Šnábel. "Content of PCB substances in carrot root and its relations to selected soil factors." Plant, Soil and Environment 49, No. 9 (December 10, 2011): 387–93. http://dx.doi.org/10.17221/4141-pse.

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The influence of the content of polychlorinated biphenyls (PCB) in agricultural soil and its agrochemical properties on bioaccumulation of PCBs by edible part of carrot (Daucus carota L.) was monitored in 18 locations of the Eastern Slovakian lowland (ESL). The congeners Nos. 28, 52, 101, 138, 153 and 180 have been determined in almost all samples and in both soil and plant material. Soil PCB values varied between 0.16 µg/kg, detected in the congener 52, and 53.4 µg/kg for the congener 180. The average value of the sum of all the followed congeners was 17.9 µg/kg. The variation interval of investigated PCB congeners in carrot root ranged from the level below the detection limit of the analytical method until the maximum of 10.6 µg/kg, for the congener 153. Average amounts of PCBs significantly differed among individual congeners. The average value of the sum of all the followed congeners in carrot root was 5.39 µg/kg. Statistical evaluation of relationships between the concentrations of congeners in carrot root and in soil predominantly showed highly significant dependences. Interestingly, the contents of individual congeners in carrot root were more tightly correlated to the contents of the remaining congeners in the root than to the amount of the analogous congener in the soil. This suggested a possible synergistic effect of PCBs regarding their uptake by the plant. The increasing concentration of inorganic nitrogen in soil leads to an increase of the content of lightly chlorinated congeners in carrot root. Concentrations of lightly chlorinated congeners 28 and 52 were more significantly affected by followed chemical parameters than were concentrations of highly chlorinated congeners. Among the chemical parameters studied [available phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) in the soil] only P and K gave statistically significant relationships. Changes in the potassium content were responsible for 7.8% variability in the amount of the congener 28. Similarly, Mg induced 7.6% of alterations in the quantity of the congener 180. Our results suggest that importance of both Ca and Mg concentrations in soil regarding the PCBs uptake were less as compared to the concentration of nitrogen. Statistically significant influence of the humus content in soil varying in range between 0.70 and 8.28% as well as the soil acidity (pH = 4.9–7.3) on the content of some of the investigated congeners in carrot root were not estimated.

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Reich, Peter B., Anna W. Schoettle, Hans F. Stroo, and Robert G. Amundson. "Effects of ozone and acid rain on white pine (Pinus strobus) seedlings grown in five soils. III. Nutrient relations." Canadian Journal of Botany 66, no. 8 (August 1, 1988): 1517–31. http://dx.doi.org/10.1139/b88-210.

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The effects of acid rain and ozone on nutrient relations of white pine (Pinus strobus L.) were assessed for potted seedlings grown in each of five forest soils. Ozone treatments consisted of frequent exposure to 0.02, 0.06, 0.10, or 0.14 ppm ozone, while acid rain treatments consisted of exposure to simulated rain of pH 5.6, 4.0, 3.5, or 3.0. Plants were treated with all combinations of acid rain and ozone levels, and treatments were administered for 4 months. Acid rain caused significant leaching of Ca, Mg, K, Mn, Zn, and Cd from leaf litter on the soil surface, and soil Mg and K content declined as well. Concentrations in needles of N, P, K, Ca, Mn, Cd, and Cr were significantly increased as a result of acid rain treatments. In roots, concentrations of N, Mn, Cd, and Cr were significantly elevated as a result of acid rain. Similar increasing but nonsignificant trends were observed for Mg, Zn, and Cu in needles and for P, K, Mg, Ca, and Cu in roots. However, despite the increases in all the major nutrients, the nutrient weight proportions of K:N, P:N, Ca:N, and Mg:N generally declined in pine tissue as a result of acid rain. Although the above relationships were relatively consistent for pine in all soils, significant differences between soils in response to acid rain were observed for some elements. Ozone had significant effects on K, Ca, and Mn concentrations, and interactions between acid rain and ozone were observed for these three elements. In general, the results of these experiments suggest that the effects of acid rain on tree nutrition may be roughly similar in different soils but that the effects on physiology and growth will be heavily influenced by specific soil properties.

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Unkovich, Murray, Paul Sanford, John Pate, and Mike Hyder. "Effects of grazing on plant and soil nitrogen relations of pasture-crop rotations." Australian Journal of Agricultural Research 49, no. 3 (1998): 475. http://dx.doi.org/10.1071/a97071.

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Plant and soil nitrogen (N) fluxes were assessed in subterranean clover (Trifolium subterraneum L.) based pastures set-stocked at 8 sheep per hectare (light grazing) or grazed at a much higher, but variable, intensity to maintain 1400 kg standing dry matter per hectare (intensive grazing) through the addition or removal of sheep. Pasture composition and biomass production, herbage N concentration, plant nitrate (NO-3) utilisation, and N2 fixation by clover were assessed at 3-weekly intervals over the growing season. Soil ammonium (NH+4) and NO-3 availability were assessed at similar intervals using soil coring and in situ incubation cores. Seasonal pasture yield under light grazing was 11·5 t dry matter/ha compared with 7·9 t/ha under intensive grazing, the difference being mostly attributable to reduced grass growth under intensive grazing. However, there was essentially no difference between the pastures in total N accumulation (300 kg N/ha in the lightly grazed and 302 kg N/ha in the intensively grazed pastures). The lesser dry matter production under intensive grazing was compensated for by higher N concentration and increased clover content of the sward, and faster clover growth late in the growing season. N2 fixation by clover under intensive grazing (153 kg N/ha) was slightly greater than under light grazing (131 kg N/ha). Proportional dependence of clover on N2 fixation (%Ndfa) was similar under intensive grazing (78%) and light grazing (84%), despite higher continued availability of soil mineral N under intensive grazing. Uptake of soil N by the grass component amounted to 147 kg N/ha under light grazing v. 96 kg N/ha in the intensively grazed pasture, and for the clover was 18 and 40 kg N/ha, respectively. Capeweed (Arctotheca calendula L.), a common weed of south-west Australian pastures, was extraordinarily active in absorbing, storing, and reducing soil NO-3, especially when subjected to intensive grazing. After the 3 years of the grazing trial, the pastures were cultivated and cropped to oats, triticale, and canola and the biomass and N uptake of each crop assessed. Intensive grazing in the previous pasture resulted in increased availability of soil mineral N in the subsequent cropping phase and accordingly augmented crop N uptake and eventual grain protein levels relative to crops following lightly grazed pasture. The study indicated that intensive grazing before cropping may offer a useful management tool for improving N nutrition and yields of non-leguminous crops in pasture-crop rotations under the conditions prevailing in the south-west of Australia.

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TRAN, T. SEN, M. TABI, and C. R. DE KIMPE. "RELATION DU POTASSIUM EXTRAIT PAR EUF ET QUELQUES MÉTHODES CHIMIQUES AVEC LES PROPRIÉTÉS DU SOL ET LE RENDEMENT DES PLANTES." Canadian Journal of Soil Science 67, no. 1 (February 1, 1987): 17–31. http://dx.doi.org/10.4141/cjss87-002.

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The objectives of this study were to compare the EUF procedures (50, 200 and 400 V) and some chemical methods (1 N NH4OAc, 0.01 M CaCl2, 1 N HNO3) in order to estimate the K fertility levels of 60 Quebec soils. The EUF-50 V-K quantities corresponded to CaCl2-K while EUF-(50 + 200 + 400 V) to acetate-K. The relations between EUF-(50 V)-K, EUF-(200 V)-K to Acetate-K were improved when introducing clay contents, CEC values and K saturation levels. On the other hand, soil pH, carbonate and exchangeable (Ca+Mg) contents had significant effects on the relations between EUF-400 V-K and Acetate-K. A greenhouse experiment, using ryegrass as the test plant, was carried out on these soils with two treatments (complete fertilization with and without K). EUF-400 V-K, Acetate-K and EUF-(50 + 200 + 400 V)-K were the best criteria to estimate relative yields and K uptake by the plant. EUF-(50 + 200 V) underestimates K fertility level for soils rich in clay, having high pH (H2O) or exchangeable (Ca+Mg) contents. Higher correlation coefficients for K uptake by the plant were obtained in multiple regression where EUF-(50 + 200 V)-K and EUF-400 V-K were taken into account. The relation between plant K uptake and K values determined by all methods were improved by considering the K saturation levels on cation exchange sites. Acetate-K contents explained up to 88% of the variation in K uptake when K saturation level was introduced. Finally, this method can overestimate the K fertility levels for soils rich in clay or organic matter. Key words: Electro-ultrafiltration, available K, soil properties, exchangeable K

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Green, Thomas H., Robert J. Mitchell, Kailash C. Paliwal, Uday V. Pathre, Bruce R. Zutter, and Dean H. Gjerstad. "Effects of Herbaceous Weeds on Fourth Year Water Relations and Gas Exchange of Loblolly Pine." Weed Technology 5, no. 4 (December 1991): 753–58. http://dx.doi.org/10.1017/s0890037x00033807.

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Stands of four-year-old loblolly pines grown with and without herbaceous competition were compared to determine whether early increases in soil moisture and plant water status had been maintained throughout the first four years. Non-weeded stands tended to have greater soil moisture than weeded stands, although these differences were never statistically significant (P > 0.05). Plant water potential was remarkably similar between treatments, as were photosynthesis and stomatal conductance. The increase due to weed control in foliage production early in stand development apparently caused a depletion in available soil moisture to levels similar to non-weeded stands. Therefore, the direct benefit of increased soil resources with weed control is short lived.

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Miller, Richard F., and Leila M. Shultz. "Water Relations and Leaf Morphology of Juniperus occidentalis in the Northern Great Basin." Forest Science 33, no. 3 (September 1, 1987): 690–706. http://dx.doi.org/10.1093/forestscience/33.3.690.

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Abstract Relationships between seasonal and diurnal leaf conductance, xylem sap potential, transpiration rates, osmotic potential, vapor pressure deficit, soil and air temperatures, soil water potential, and photosynthetic active radiation are quantified for Juniperus occidentalis Hook. Additionally, xeromorphic aspects of leaf morphology were examined with electron microscopy. Xylem sap potentials and leaf conductance ranged from -0.5 to -2.7 MPa and 0.02 to 0.13 cm s-1, respectively, during the two-year study. Leaf conductance is not clearly related to any single environmental variable, but is primarily influenced by vapor pressure deficit, photosynthetically active radiation, and factors such as soil and air temperatures, and soil water, which influence the resistance of water flow through the plant. Stomates usually closed when xylem sap potentials reached - 2.0 MPa. Stomates on mature leaves are distributed unequally on adaxial and abaxial surfaces, with none occurring on exposed surfaces. Drought avoidance mechanisms displayed by the plant were leaf morphological characteristics, low maximum leaf conductance, and reduced maximum leaf conductance under high evaporative conditions. Cold soil temperatures increased resistance of water flow through the soil-plant-atmosphere continuum. Xeromorphic leaf structure as well as seasonal osmotic adjustment provide primary mechanisms in the tolerance of Juniperus occidentalis to drought stress. For. Sci. 33(3):690-706.

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42

Hanson, Anne-Marie, J. Roger Harris, Robert Wright, Alex Niemiera, and Naraine Persaud. "Water Content of a Pine-bark Growing Substrate in a Drying Mineral Soil." HortScience 39, no. 3 (June 2004): 591–94. http://dx.doi.org/10.21273/hortsci.39.3.591.

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Newly transplanted container-grown landscape plants are reported to require very frequent irrigation. However, container nurseries in the U.S. commonly use growing substrates that are mostly bark, even though the contribution of bark-based growing substrates to water relations of transplanted root balls is unknown. Therefore, a field experiment was undertaken to determine water relations of a pine-bark substrate (container removed) within a drying mineral soil over a three week period. A range of common production container sizes—3.7 L (#1), 7.5 L (#2), 21.9 L (#7), 50.6 L (#15), and 104.5 L (#25)—was used. The fraction of substrate volume that is water [total volumetric water (TVW)] within the top and middle zones of substrate was compared to TVW at corresponding depths of adjacent mineral soil. The fraction of substrate and soil volume that is plant-available water [plant-available volumetric water (PAVW)] was calculated by subtracting the fraction of substrate or soil volume below where water is unavailable to most plants (measured with pressure plates) [plant-unavailable volumetric water (PUVW)] from each TVW measurement. The pine-bark substrate had a PUVW of 0.32 compared to a PUVW of 0.06 for soil. Top sections of substrate dried to near zero PAVW 6 days after irrigation for all containers. Larger container sizes maintained higher PAVW in middle sections than smaller container sizes, and PAVW was always higher in the adjacent soil than in the embedded substrate. Overall, very little PAVW is held by the embedded pine-bark growing substrate, suggesting the need for container substrates with greater water retention once transplanted to mineral soils.

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43

Fergusson, B., and AJ Graham. "A Quantitative Study of Soil-Plant Relations in the Eastern Goldfields of Western Australia." Rangeland Journal 20, no. 1 (1998): 119. http://dx.doi.org/10.1071/rj9980119.

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The soil and plants at a 27.4 ha field site near Kalgoorlie, Western Australia, were surveyed and analysed with multivariate statistics. Cluster analysis identified four distinct plant communities at the study site. These were: Acacia acuminata shrubland Eucalyptus gvfithsii woodland Eucalyptus salrnonophloia woodland 'Ground Covers' - areas characterised by the presence of generalist herbs, low shrubs and weeds, and the absence of dominant upper storey species. Discriminant function analysis identified site elevation and soil exchangeable Ca as the primary environmental discriminants between the plant communities. Using these two variables, sample points were classified into one of the four plant communities. The two methods of classification matched well, with classification based on the two environmental variables providing an indication of which plant community would be most likely to establish in disturbed areas. This type of information can be important to revegetation programs in the region, guiding the use of appropriate plant species under different rehabilitation conditions. Key wcrds: environmental variables, plant communities, multivariate analysis, classification, revegetation

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44

Curran, Timothy J., Peter J. Clarke, and Nigel W. M. Warwick. "Water relations of woody plants on contrasting soils during drought: does edaphic compensation account for dry rainforest distribution?" Australian Journal of Botany 57, no. 8 (2009): 629. http://dx.doi.org/10.1071/bt09128.

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The occurrence of dry rainforest in climates considered drier than the recognised limit for rainforest has been explained by the edaphic compensation hypothesis, which proposed that finer-textured soils facilitate the occurrence of rainforest at climatic extremes. We tested this by examining the effect of soil type on the water relations and plant traits of four dry rainforest species, during a severe drought and subsequent non-drought periods. We predicted plants growing in sandy soils would exhibit higher levels of water stress (lower predawn water potential and stomatal conductance) and possess morphological and physiological traits that more typically reflect drought resistance (late leaf fall in deciduous species, low specific leaf area, vertical leaf angles and stomata that close at low water potential) than those growing in loam soils. During drought, levels of water stress were similar across soil types, while post-drought plants on sandy soils were less stressed. Soil type did not cause shifts in drought tolerance traits, suggesting there has been no ecotypic differentiation of dry rainforest species across soil types for these traits. Hence, we found no support for the edaphic compensation hypothesis in adult plants; future studies should consider other life-cycle stages, such as seedlings.

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45

Martínez Richart, Ana Isabel, María Noelia Jiménez Morales, Emilia Fernández Ondoño, and Francisco Bruno Navarro Reyes. "Plant diversity in traditional irrigation channels and its relations with soil properties." Ecosistemas 28, no. 3 (December 29, 2019): 81–91. http://dx.doi.org/10.7818/ecos.1733.

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46

Ou, Xiaohong, Li Wang, Lanping Guo, Xiuming Cui, Dahui Liu, and Ye Yang. "Soil-Plant Metal Relations in Panax notoginseng: An Ecosystem Health Risk Assessment." International Journal of Environmental Research and Public Health 13, no. 11 (November 5, 2016): 1089. http://dx.doi.org/10.3390/ijerph13111089.

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47

Rao, M. S. S., and N. J. Mendham. "Soil–plant–water relations of oilseed rape (Brassica napus and B. campestris)." Journal of Agricultural Science 117, no. 2 (October 1991): 197–205. http://dx.doi.org/10.1017/s002185960006528x.

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SUMMARYChinoli (Brassica campestris subsp. oleifera × subsp. chinensis), Marnoo and Apetalous (B. napus), with contrasting morphological characters, were compared over four seasons in Tasmania in 1985/86 and 1986/87. The total water use estimated from a depth of 70 cm increased in proportion to irrigations. Before irrigation all the crops had a similar pattern of moisture extraction but differences between the lines, and due to irrigations, emerged after the irrigation treatments. The genotypic differences were clearer in the winter sowing of 1986/87, when the growing season was longer. Apetalous, when unirrigated, extracted a greater amount of water from the lower, wetter regions of the soil profile, particularly in the longer winter sowing when its water use was the same as in the treatment receiving one irrigation. With consistently higher stomatal conductance, Apetalous used more water than chinoli or Marnoo. It also maintained a higher turgor at lower osmotic potentials, suggesting a greater degree of drought tolerance than found in the short duration chinoli which, although it had a lower water use, also gave lower seed yields.

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Sharma, R. B. "Plant-water relations in wheat as influenced by root pruning." Plant and Soil 98, no. 3 (October 1987): 429–32. http://dx.doi.org/10.1007/bf02378364.

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49

Masinde, P. W., H. Stützel, S. G. Agong, and A. Fricke. "Plant Growth, Water Relations, and Transpiration of Spiderplant [Gynandropsis gynandra (L.) Briq.] under Water-limited Conditions." Journal of the American Society for Horticultural Science 130, no. 3 (May 2005): 469–77. http://dx.doi.org/10.21273/jashs.130.3.469.

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Plant growth and osmotic adjustment of spiderplant were investigated in a glasshouse and under field conditions. Two fast-growing genotypes (P-landrace and P-commercial) and a slow-growing landrace (G-landrace) were grown under soil water deficit and watered conditions. The fraction of transpirable soil water (FTSW) was used as an indicator of water availability in pots. In the greenhouse, transpiration was determined by changes in daily pot weights and the ratio of transpiration of plants in soil water deficit to watered treatments expressed as normalized transpiration ratio (NTR). Water use in the field experiment was determined by gravimetric methods. The fast-growing genotypes had a higher rate of soil drying due to a higher rate of leaf area development. They were also more sensitive to soil water deficit with NTR beginning to decline at FTSW of 0.55-0.77 as compared to 0.29 for the slow-growing landrace. Also, the fast growing genotypes had FTSW thresholds for the stem elongation rate of 0.35-0.55 as compared to 0.20 for the slow growing landrace. The rate of leaf development declined when 40% to 60% of available water in the soil was removed, regardless of genotype. Leaf area of plants under field conditions decreased when the soil moisture was <60% field capacity. Under severe soil water deficit stress in pots, plants partitioned more biomass to roots than above ground; however, biomass partitioning between leaves and stems was not influenced by soil water deficit. Spiderplant showed limited osmotic adjustment (OA) in the range of 0.10-0.33 MPa at the highest soil water deficit (FTSW = 0). Thus, spiderplant is mainly a drought avoiding species. To achieve maximum growth, it is necessary to keep FTSW above 0.6.

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Groom, Philip K. "Rooting depth and plant water relations explain species distribution patterns within a sandplain landscape." Functional Plant Biology 31, no. 5 (2004): 423. http://dx.doi.org/10.1071/fp03200.

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Tree and shrub species of the Banksia woodlands on the sandplains of northern Swan Coastal Plain, Western Australia possess a range of strategies to avoid or tolerate soil water deficits during the annual summer drought. Shallow-rooted shrub species (< 1 m rooting depth) inhabit a range of locations in the landscape, from top of dune crests to wetland embankments. These are the most drought-tolerant of all sandplain species, surviving extremely low summer soil water potentials (< –7 MPa) and tissue water deficits by significantly reducing their transpirational water loss (< 0.2 mmol m–2 s–1). This is in contrast to the few shallow-rooted species restricted to low-lying or seasonally waterlogged areas which are reliant on subsurface soil moisture or groundwater to maintain their relatively high summer water use. Recent studies of water source usage of selected Banksia tree species have shown that these deep-rooted species access groundwater up to a maximum depth of 9 m depth during the summer months, or soil moisture at depth when groundwater was greater than maximum rooting depths, depending on the species. Medium- and deep-rooted (1–2 m and > 2 m, respectively) shrub species cope with the summer soil drying phase and related decrease in groundwater levels by conserving leaf water loss and incurring predawn water potentials between –1 and –4 MPa, enabling them to occur over a range of topographic positions within the sandplain landscape.

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Journal articles on the topic 'Plant soil relations'

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