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Journal articles on the topic 'Trait foliaire'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Schweiger, Anna K., Alexis Lussier Desbiens, Guillaume Charron, Hughes La Vigne, and Etienne Laliberté. "Foliar sampling with an unmanned aerial system (UAS) reveals spectral and functional trait differences within tree crowns." Canadian Journal of Forest Research 50, no. 10 (2020): 966–74. http://dx.doi.org/10.1139/cjfr-2019-0452.

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Imaging spectroscopy is currently the best approach for continuously mapping forest canopy traits, which is important for ecosystem and biodiversity assessments. Ideally, models are trained with trait data from fully sunlit leaves from the top of the canopy. However, sampling leaves at the top of the canopy is often difficult, and sunlit foliage from the crown periphery is collected instead, assuming minimal within-crown trait variation among sunlit leaves. We tested the degree to which crown position affects foliar traits and spectra using mixed-effects models comparing sun leaves from the cr

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Turnbull, Matthew H., Kevin L. Griffin, Nikolaos M. Fyllas, Jon Lloyd, Patrick Meir, and Owen K. Atkin. "Separating species and environmental determinants of leaf functional traits in temperate rainforest plants along a soil-development chronosequence." Functional Plant Biology 43, no. 8 (2016): 751. http://dx.doi.org/10.1071/fp16035.

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We measured a diverse range of foliar characteristics in shrub and tree species in temperate rainforest communities along a soil chronosequence (six sites from 8 to 120 000 years) and used multilevel model analysis to attribute the proportion of variance for each trait into genetic (G, here meaning species-level), environmental (E) and residual error components. We hypothesised that differences in leaf traits would be driven primarily by changes in soil nutrient availability during ecosystem progression and retrogression. Several leaf structural, chemical and gas-exchange traits were more stro

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Copes, D. L., W. H. Pawuk, W. A. Farr, and R. R. Silen. "Relation of Crown and Foliage Traits to Height Growth of Sitka Spruce." Western Journal of Applied Forestry 11, no. 3 (1996): 77–80. http://dx.doi.org/10.1093/wjaf/11.3.77.

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Abstract Four crown and foliage traits of a young Sitka spruce (Picea sitchensis) stand were tested with rooted cuttings in greenhouse and field plots for possible thinning selection guidelines. Repeatability estimates of the amount of genetic control over the four traits and the relation of those traits to height growth were evaluated 5 years after rooting. Only the blue-green trait was significantly associated (P < 0.05) with height growth. Average height of cuttings selected for green foliage was 17% greater than cuttings selected for blue foliage. Under greenhouse conditions, repeatabil

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Hacker, Paul W., Nicholas C. Coops, Philip A. Townsend, and Zhihui Wang. "Retrieving Foliar Traits of Quercus garryana var. garryana across a Modified Landscape Using Leaf Spectroscopy and LiDAR." Remote Sensing 12, no. 1 (2019): 26. http://dx.doi.org/10.3390/rs12010026.

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Understanding the ecological effects of human activities on an ecosystem is integral to the implementation of conservation management plans. The plasticity of plant functional traits presents an opportunity to examine the capacity for intraspecific functional trait variations to be indicators of anthropogenic landscape modifications. The presence of intraspecific trait variation would indicate that plants of a single species could to be used to evaluate and map functional diversity, a common metric used to measure biodiversity. This study uses leaf spectroscopy, light detection and ranging (Li

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Bangirinama, Frédéric, Marie José Bigendako, Jean Lejoly, Nausicaa Noret, Charles De Cannière, and Jan Bogaert. "Définition d'indices successionnels pour la caractérisation du processus de la succession post-culturale au Burundi." BOIS & FORETS DES TROPIQUES 305, no. 305 (2010): 57. http://dx.doi.org/10.19182/bft2010.305.a20439.

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Des recherches ont été menées sur la biodiversité des jachères situées dans la périphérie des aires protégées du Burundi. Les données relatives aux traits biologiques (forme de vie, types de diaspores et types foliaires) ont été collectées sur divers compartiments reflétant les facteurs spatial et temporel. Les résultats montrent des variations significatives de certains attributs des traits biologiques au cours de la dynamique post-culturale. Parmi trois indices définis pour caractériser cette variabilité, l'efficacité de deux indices (indice successionnel de forme de vie et indice succession

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Ta, James, Christine Palmer, Marcus Brock, et al. "Multiple Loci Control Variation in Plasticity to Foliar Shade Throughout Development in Arabidopsis thaliana." G3: Genes|Genomes|Genetics 10, no. 11 (2020): 4103–14. http://dx.doi.org/10.1534/g3.120.401259.

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The shade avoidance response is a set of developmental changes exhibited by plants to avoid shading by competitors, and is an important model of adaptive plant plasticity. While the mechanisms of sensing shading by other plants are well-known and appear conserved across plants, less is known about the developmental mechanisms that result in the diverse array of morphological and phenological responses to shading. This is particularly true for traits that appear later in plant development. Here we use a nested association mapping (NAM) population of Arabidopsis thaliana to decipher the genetic

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Arojju, Sai Krishna, Mingshu Cao, M. Z. Zulfi Jahufer, Brent A. Barrett, and Marty J. Faville. "Genomic Predictive Ability for Foliar Nutritive Traits in Perennial Ryegrass." G3: Genes|Genomes|Genetics 10, no. 2 (2019): 695–708. http://dx.doi.org/10.1534/g3.119.400880.

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Forage nutritive value impacts animal nutrition, which underpins livestock productivity, reproduction and health. Genetic improvement for nutritive traits in perennial ryegrass has been limited, as they are typically expensive and time-consuming to measure through conventional methods. Genomic selection is appropriate for such complex and expensive traits, enabling cost-effective prediction of breeding values using genome-wide markers. The aims of the present study were to assess the potential of genomic selection for a range of nutritive traits in a multi-population training set, and to quant

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8

Liu, Sining, Shenqun An, Zhengbing Yan, et al. "Variation and potential influence factors of foliar pH in land-water ecozones of three small plateau lakes." Journal of Plant Ecology 14, no. 3 (2021): 504–14. http://dx.doi.org/10.1093/jpe/rtab003.

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Abstract Aims Foliar pH of terrestrial plants, a trait tightly associated with plant physiology and nutrient utilization, varies with plant functional types (PFTs) and environmental changes. However, it is yet unclear about the variation in foliar pH of aquatic plants, and the difference between aquatic and terrestrial plants. Methods Foliar pH, leaf carbon, nitrogen content of plants along the lakeshore zones and the environmental conditions (water or soil pH, water status) of the corresponding vegetation of three small plateau lakes were investigated, to determine the variation and potential

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Vujacic, Vesna. "Variability and factor analysis of morphological and productive characteristics of species of the genus Amaranthus." Genetika 37, no. 1 (2005): 1–13. http://dx.doi.org/10.2298/gensr0501001v.

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Ten genotypes of amaranth were being studied for three years. Morphological and productive characteristics - plant height, foliage per plant, average foliage length, average foliage width, mass per plant, and seed mass per plant were the subject of this research. Variability of these traits was analyzed and classification of the genotypes by the method of major components was conducted. Variability within a specific trait was significant. In case of the plant height it ranged between 93.18 cm (genotype 9 - A. cruentus) and 160.78 cm (genotype 1 - A mantegazzianus); foliage per plant raged betw

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Lhotáková, Zuzana, Veronika Kopačková-Strnadová, Filip Oulehle, et al. "Foliage Biophysical Trait Prediction from Laboratory Spectra in Norway Spruce Is More Affected by Needle Age Than by Site Soil Conditions." Remote Sensing 13, no. 3 (2021): 391. http://dx.doi.org/10.3390/rs13030391.

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Scaling leaf-level optical signals to the canopy level is essential for airborne and satellite-based forest monitoring. In evergreen trees, biophysical and optical traits may change as foliage ages. This study aims to evaluate the effect of age in Norway spruce needle on biophysical trait-prediction based on laboratory leaf-level spectra. Mature Norway spruce trees were sampled at forest stands in ten headwater catchments with different soil properties. Foliage biophysical traits (pigments, phenolics, lignin, cellulose, leaf mass per area, water, and nitrogen content) were assessed for three n

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Johnsen, Kurt H., Lawrence B. Flanagan, Dudley A. Huber, and John E. Major. "Genetic variation in growth, carbon isotope discrimination, and foliar N concentration in Picea mariana: analyses from a half-diallel mating design using field-grown trees." Canadian Journal of Forest Research 29, no. 11 (1999): 1727–35. http://dx.doi.org/10.1139/x99-144.

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We performed genetic analyses of growth, carbon isotope discrimination (delta13C), and foliar N concentration using a half-diallel subset of a 7 × 7 complete diallel planted on three sites ranging in water availability. Trees were 22 years old. Heritabilities; general and specific combining abilities; as well as phenotypic, genetic, and environmental correlations were calculated using the best linear unbiased prediction and restricted maximum-likelihood methods. The four traits measured showed variable levels of genetic control. The calculated heritablilities for the traits were as follows: he

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Pourmohammad, A., F. Shekari, and V. Soltaniband. "Cycocel Priming and Foliar Application Affect Yield Components of Rapeseed (Brassica Napus L.)." Cercetari Agronomice in Moldova 47, no. 1 (2014): 59–69. http://dx.doi.org/10.2478/cerce-2014-0007.

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ABSTRACT A factorial based on RCBD experiment was conducted to evaluate the effects of priming and foliar spray of cycocel on rapeseed yield components. Treatments were included; seed priming (0, 600, 900, 1200, 1500 μM) and foliar spray (0, 600, 1200 μM) with cycocel at development stage of flower buds. The results revealed that seed priming with cycocel significantly increased emerged plant number per plot, silique dry weight in the main stems and branches, plant dry weight, branches number, silique number in the main stems and branches, seed number in branches, 1000 seeds weight, and seed y

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Love, Stephen L., Bruce K. Werner, Horia I. Groza, and Asunta Thompson-Johns. "Performance of Commercially Available True Potato Seed Hybrids Grown from Tubers." HortScience 32, no. 4 (1997): 728–32. http://dx.doi.org/10.21273/hortsci.32.4.728.

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Nine commercially available true potato seed (TPS) hybrids were compared to four standard clonal cultivars with respect to mean and uniformity of foliar characteristics and tuber traits important to the North American potato industry. The TPS hybrids were planted using second vegetative generation tubers derived originally from botanical seed. Ten plants from each plot were individually evaluated for plant height, vine maturity, early blight symptoms, and verticillium wilt symptoms. Following harvest, yield was determined and the tubers were rated or measured for appearance, shape, specific gr

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Durán, Sandra M., Roberta E. Martin, Sandra Díaz, et al. "Informing trait-based ecology by assessing remotely sensed functional diversity across a broad tropical temperature gradient." Science Advances 5, no. 12 (2019): eaaw8114. http://dx.doi.org/10.1126/sciadv.aaw8114.

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Spatially continuous data on functional diversity will improve our ability to predict global change impacts on ecosystem properties. We applied methods that combine imaging spectroscopy and foliar traits to estimate remotely sensed functional diversity in tropical forests across an Amazon-to-Andes elevation gradient (215 to 3537 m). We evaluated the scale dependency of community assembly processes and examined whether tropical forest productivity could be predicted by remotely sensed functional diversity. Functional richness of the community decreased with increasing elevation. Scale-dependent

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Kafuti, Chadrack, Nils Bourland, Tom De Mil, et al. "Foliar and Wood Traits Covary along a Vertical Gradient within the Crown of Long-Lived Light-Demanding Species of the Congo Basin Semi-Deciduous Forest." Forests 11, no. 1 (2019): 35. http://dx.doi.org/10.3390/f11010035.

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Plant functional traits have shown to be relevant predictors of forest functional responses to climate change. However, the trait-based approach to study plant performances and ecological strategies has mostly been focused on trait comparisons at the interspecific and intraspecific levels. In this study, we analyzed traits variation and association at the individual level. We measured wood and leaf traits at different height locations within the crown of five individuals of Pericopsis elata (Harms) Meeuwen (Fabaceae) from the northern tropical forest of the Democratic Republic of the Congo. Al

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Zhang, Yan-Li, Barbara Moser, Mai-He Li, Thomas Wohlgemuth, Jing-Pin Lei, and Christoph Bachofen. "Contrasting Leaf Trait Responses of Conifer and Broadleaved Seedlings to Altered Resource Availability Are Linked to Resource Strategies." Plants 9, no. 5 (2020): 621. http://dx.doi.org/10.3390/plants9050621.

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(1) Understanding tree seedling responses to water, nutrient, and light availability is crucial to precisely predict potential shifts in composition and structure of forest communities under future climatic conditions. (2) We exposed seedlings of widespread Central European tree species with contrasting leaf habit, deciduous broadleaves (DB) and evergreen conifers (EC), to factorial combinations of manipulated precipitation (100% and 50% of ambient), shade (40% and 60% of full sunlight), and nutrient availability (low and high NPK), and measured specific leaf area, C/N ratio, soluble sugars, s

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Butler, Ethan E., Abhirup Datta, Habacuc Flores-Moreno, et al. "Mapping local and global variability in plant trait distributions." Proceedings of the National Academy of Sciences 114, no. 51 (2017): E10937—E10946. http://dx.doi.org/10.1073/pnas.1708984114.

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Our ability to understand and predict the response of ecosystems to a changing environment depends on quantifying vegetation functional diversity. However, representing this diversity at the global scale is challenging. Typically, in Earth system models, characterization of plant diversity has been limited to grouping related species into plant functional types (PFTs), with all trait variation in a PFT collapsed into a single mean value that is applied globally. Using the largest global plant trait database and state of the art Bayesian modeling, we created fine-grained global maps of plant tr

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Tusifujiang, Yelike, Xueni Zhang, and Lu Gong. "The relative contribution of intraspecific variation and species turnover to the community-level foliar stoichiometric characteristics in different soil moisture and salinity habitats." PLOS ONE 16, no. 2 (2021): e0246672. http://dx.doi.org/10.1371/journal.pone.0246672.

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BackgroundTrait-based approaches have been used to demonstrate the responses of plant functional traits to environmental change may manifest both among- and/or within-species. However, how community-level foliar stoichiometric characteristic variations respond to aridity and salinity is still not well-known.MethodsWe calculated community weighted means (CWMs) and non-weighted means (CMs) of foliar C, N, and P concentrations (and their ratios) in a dryland plant community respond to high (HSW) and low soil moisture and salinity (LSW). Based on a sum of squares decomposition method, we determine

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Nunes, Matheus H., Matthew P. Davey, and David A. Coomes. "On the challenges of using field spectroscopy to measure the impact of soil type on leaf traits." Biogeosciences 14, no. 13 (2017): 3371–85. http://dx.doi.org/10.5194/bg-14-3371-2017.

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Abstract. Understanding the causes of variation in functional plant traits is a central issue in ecology, particularly in the context of global change. Spectroscopy is increasingly used for rapid and non-destructive estimation of foliar traits, but few studies have evaluated its accuracy when assessing phenotypic variation in multiple traits. Working with 24 chemical and physical leaf traits of six European tree species growing on strongly contrasting soil types (i.e. deep alluvium versus nearby shallow chalk), we asked (i) whether variability in leaf traits is greater between tree species or

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Olsen, Richard T., and Thomas G. Ranney. "INHERITANCE OF VARIEGATED AND PURPLE FOLIAGE PHENOTYPES IN Hypericum androsaemum L." HortScience 40, no. 3 (2005): 874a—874. http://dx.doi.org/10.21273/hortsci.40.3.874a.

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Inheritance of two mutant foliage types (purple and mottled variegated) was investigated for diploid, triploid, and tetraploid tutsan (Hypericum androsaemum). Segregation ratios were determined for diploid crosses in reciprocal dihybrid F1 and F2, BC1P1, and BC1P2 families. F2 tetraploids were derived from autotetraploid F1s. Triploid segregation ratios were determined from crosses between autotetraploid F1s and diploid F1s. Diploid di-hybrid crosses fit the expected 9:3:3:1 ratio for a single, simple recessive gene for both traits, with no evidence of linkage between each trait. Data from bac

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Odilbekov, Firuz, Catja Selga, Rodomiro Ortiz, Aakash Chawade, and Erland Liljeroth. "QTL Mapping for Resistance to Early Blight in a Tetraploid Potato Population." Agronomy 10, no. 5 (2020): 728. http://dx.doi.org/10.3390/agronomy10050728.

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Early blight of potato, caused by Alternaria solani, is an economically important foliar disease in most potato-growing regions. Growing cultivars with higher levels of resistance to early blight can reduce tuber yield losses and the need for fungicide applications. In this research, a bi-parental tetraploid potato population, segregating for resistance to early blight in leaves and tubers, was characterized to identify novel quantitative trait loci (QTL) associated with foliar and tuber early blight resistance. Assessment of the disease resistance in the foliage was performed by field evaluat

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Melo Júnior, João Carlos Ferreira, Maick William Amorim, Igor Abba Arriola, Jessica Stefani Dirksen, and Fernando Andreacci. "Morphoanatomical plasticity of Tibouchina clavata (Melastomataceae) in ombrophilous forest and restinga forest." Ciência e Natura 39, no. 3 (2017): 484. http://dx.doi.org/10.5902/2179460x26870.

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Structural adjustments in plants may occur in response to environmental constraints, which may influence plant growth and development, as well as patterns of species coexistence. The present study aimed to evaluate the plastic responses of Tibouchina clavata (Melastomataceae) occurring in two forest formations governed by different environmental conditions. Ten leaves of ten individuals were collected in each formation, for a total of n = 100 per area. as were stem samples, for measuring architectural, morphological and foliar traits. Environmental variables considered included edaphic nutriti

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Asner, Gregory P., David E. Knapp, Christopher B. Anderson, Roberta E. Martin, and Nicholas Vaughn. "Large-scale climatic and geophysical controls on the leaf economics spectrum." Proceedings of the National Academy of Sciences 113, no. 28 (2016): E4043—E4051. http://dx.doi.org/10.1073/pnas.1604863113.

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Leaf economics spectrum (LES) theory suggests a universal trade-off between resource acquisition and storage strategies in plants, expressed in relationships between foliar nitrogen (N) and phosphorus (P), leaf mass per area (LMA), and photosynthesis. However, how environmental conditions mediate LES trait interrelationships, particularly at large biospheric scales, remains unknown because of a lack of spatially explicit data, which ultimately limits our understanding of ecosystem processes, such as primary productivity and biogeochemical cycles. We used airborne imaging spectroscopy and geosp

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Sullivan, Franklin B., Scott V. Ollinger, Mary E. Martin, Mark J. Ducey, Lucie C. Lepine, and Haley F. Wicklein. "Foliar nitrogen in relation to plant traits and reflectance properties of New Hampshire forests." Canadian Journal of Forest Research 43, no. 1 (2013): 18–27. http://dx.doi.org/10.1139/cjfr-2012-0324.

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Several recent studies have shown that the mass-based concentration of nitrogen in foliage (%N) is positively correlated with canopy near-infrared reflectance (NIRr) and midsummer shortwave albedo across North American forests. Understanding the mechanisms behind this relationship would aid in interpretation of remote sensing imagery and improve our ability to predict changes in reflectance under future environmental conditions. The purpose of this study was to investigate the extent to which foliar nitrogen at leaf and canopy scales covary with leaf- and canopy-scale structural traits that ar

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Ali, Qasim, Shafaqat Ali, Mohamed A. El-Esawi, et al. "Foliar Spray of Fe-Asp Confers Better Drought Tolerance in Sunflower as Compared with FeSO4: Yield Traits, Osmotic Adjustment, and Antioxidative Defense Mechanisms." Biomolecules 10, no. 9 (2020): 1217. http://dx.doi.org/10.3390/biom10091217.

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Different techniques are being employed to reduce the adverse effects of water stress on seed yield and quality of crop plants. The current study aimed to improve the water stress tolerance of field-grown sunflower by foliar-supplied ecofriendly iron-chelated aspartate (Fe-Asp) in comparison with FeSO4. Water stress decreased the plant growth and yield, accompanied with disturbed water relations, nutrient acquisition, accumulation of amino acids, and antioxidative defense mechanisms. However, lipid peroxidation, total anthocyanin, and photosynthetic pigments were increased. Fertigation of FeSO

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Patiño, S., N. M. Fyllas, T. R. Baker, et al. "Coordination of physiological and structural traits in Amazon forest trees." Biogeosciences 9, no. 2 (2012): 775–801. http://dx.doi.org/10.5194/bg-9-775-2012.

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Abstract. Many plant traits covary in a non-random manner reflecting interdependencies associated with "ecological strategy" dimensions. To understand how plants integrate their structural and physiological investments, data on leaf and leaflet size and the ratio of leaf area to sapwood area (ΦLS) obtained for 1020 individual trees (encompassing 661 species) located in 52 tropical forest plots across the Amazon Basin were incorporated into an analysis utilising existing data on species maximum height (Hmax), seed size, leaf mass per unit area (MA), foliar nutrients and δ13C, and branch xylem d

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Danful, Rukiya, Yussif Baba Kassim, Doris Kanvenaa Puozaa, et al. "Genetics of Stay-Green Trait and Its Association with Leaf Spot Tolerance and Pod Yield in Groundnut." International Journal of Agronomy 2019 (July 30, 2019): 1–11. http://dx.doi.org/10.1155/2019/3064026.

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Despite its importance in providing income and food for smallholder farmers, fodder for livestock, and improving soil fertility through biological nitrogen fixation, groundnut yields are lowest on farmers’ fields in Sub-Saharan Africa due to biotic and abiotic constraints. Foliar fungal diseases account for over 80% reduction in groundnut productivity in some parts of Ghana. Unfortunately, chemical control of these foliar diseases has not yielded the desired results. Meanwhile, advances in phenotyping for disease tolerance in other crops have established a strong relationship between stay-gree

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Naeem, Muhammad, I. M. Verry, P. D. Kemp, J. P. Millner, and W. M. Williams. "Seed production trait associations and inheritance in interspecific hybrids between Trifolium repens (white clover) and Trifolium uniflorum." Crop and Pasture Science 68, no. 9 (2017): 885. http://dx.doi.org/10.1071/cp17048.

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Trifolium repens L. (white clover) is an important component of temperate pastures, but its root morphology makes it vulnerable to drought and pest attack. T. uniflorum is a wild species, adapted to dry environments, with deep woody roots but poor vegetative growth and only 1–3 florets per inflorescence (head). Interspecific hybridisation to incorporate the drought tolerance and root characteristics of T. uniflorum into white clover led to primary hybrids (F1 and BC1) with poor seed production. Advanced-generation hybrids expressed high variation for almost all seed-production traits, and seed

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Patiño, S., N. M. Fyllas, T. R. Baker, et al. "Coordination of physiological and structural traits in Amazon forest trees." Biogeosciences Discussions 8, no. 3 (2011): 5083–158. http://dx.doi.org/10.5194/bgd-8-5083-2011.

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Abstract. Many plant traits covary in a non-random manner reflecting interdependencies associated with "ecological strategy" dimensions. To understand how plants modulate their structural investments to best maintain and utilise their physiological capabilities, data on leaf and leaflet size and the ratio of leaf area to sapwood area (ΦLS) obtained for 1040 tree species located in 53 tropical forest plots across the Amazon Basin were incorporated into an analysis utilising existing data on species maximum height (Hmax), seed size, leaf mass per unit area (MA), foliar nutrients and δ13C and bra

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Williams-Linera, Guadalupe, and Avril Manrique-Ascencio. "Functional traits of tree saplings and adults in a tropical cloud forest restoration context." Botanical Sciences 98, no. 1 (2020): 76–85. http://dx.doi.org/10.17129/botsci.2406.

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Background: The use of tree species’ functional traits is a promising approach in forest restoration. However, some traits may change during ontogeny. Questions: Does intraspecific variation in functional traits occur between sapling and adult stages? Do groups of species can be delimited based on functional traits regardless of their ontogenetic stage? Study sites and dates: Cloud forest restoration, Veracruz, Mexico, 2016. Methods: Saplings and adults of eight native tree species in different age plantations were measured for leaf area (LA), specific leaf area (SLA), stomat

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Fernando, Denise R., Chaya S. Smith, Martin J. Steinbauer, Kevin Farnier, Simon J. Watson, and Peter T. Green. "Does foliage metal accumulation influence plant–insect interactions? A field study of two sympatric tree metallophytes." Functional Plant Biology 45, no. 9 (2018): 945. http://dx.doi.org/10.1071/fp17366.

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Gossia (Myrtaceae) is a highly restricted tree genus most speciose in New Caledonia and eastern Australia. The latter group accumulates above-normal foliar manganese (Mn) concentrations, with some individuals exhibiting the rare Mn-hyperaccumulative trait. Whether foliar metals contribute to chemical defence has been addressed via numerous feeding experiments and very few field studies. This investigation exploited specifically different insect activities on the foliage of sympatric Gossia grayi (N.Snow & Guymer) and Gossia shepherdii (F.Muell.) N.Snow & Guymer, endemic to north-easter

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Tharakan, P. J., T. A. Volk, C. A. Nowak, and L. P. Abrahamson. "Morphological traits of 30 willow clones and their relationship to biomass production." Canadian Journal of Forest Research 35, no. 2 (2005): 421–31. http://dx.doi.org/10.1139/x04-195.

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The relatively high cost of willow (Salix spp.) biomass feedstock compared with fossil fuels makes it imperative to reduce production costs by increasing yields and reducing input costs. This can be addressed by harnessing the genetic potential of willow based on an understanding of the variation in key traits and how they interact to influence biomass production. Variation in 11 morphological traits among 30 willow clones at the end of a 3-year rotation was analyzed to determine its relationship to biomass production. We found significant differences (p ≤ 0.001) among the 30 clones in all tra

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Anekonda, T. S., M. C. Lomas, W. T. Adams, K. L. Kavanagh, and S. N. Aitken. "Genetic variation in drought hardiness of coastal Douglas-fir seedlings from British Columbia." Canadian Journal of Forest Research 32, no. 10 (2002): 1701–16. http://dx.doi.org/10.1139/x02-091.

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Genetic variation in drought hardiness traits and their genetic correlations with growth potential and recovery traits were investigated in 39 full-sib families of coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) from southwestern British Columbia. Seedlings of these families were grown in raised nursery beds and subjected to three moisture regimes each in the second (well-watered or control, mild, and moderate drought) and third (control, severe drought, and recovery from second-year moderate drought) seasons. Traits assessed included drought hardiness (foliage damage

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Patry, Cynthia, Daniel Kneeshaw, Isabelle Aubin, and Christian Messier. "Intensive forestry filters understory plant traits over time and space in boreal forests." Forestry: An International Journal of Forest Research 90, no. 3 (2017): 436–44. http://dx.doi.org/10.1093/forestry/cpx002.

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Abstract Because of their scarcity, protected areas alone cannot maintain biodiversity. Therefore, it is necessary to create conditions appropriate for plants and wildlife in managed landscapes. We compared the effects of different intensities of forest management on functional responses of vascular understory plants using the fourth-corner method. We analysed functional community composition along a management gradient that spanned semi-natural forests to extensively managed forests (naturally regenerated cuts) to intensively managed forests (planted forests) in Canada. Results showed trait f

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Harrison, Susan, and Marina LaForgia. "Seedling traits predict drought-induced mortality linked to diversity loss." Proceedings of the National Academy of Sciences 116, no. 12 (2019): 5576–81. http://dx.doi.org/10.1073/pnas.1818543116.

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Trait-based approaches are increasingly used to predict ecological consequences of climate change, yet seldom have solid links been established between plant traits and observed climate-driven community changes. Most analyses have focused on aboveground adult plant traits, but in warming and drying climates, root traits may be critical, and seedlings may be the vulnerable stage. Relationships of seedling and root traits to more commonly measured traits and ecological outcomes are poorly known. In an annual grassland where winter drought-induced seedling mortality is driving a long-term decline

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Selakovic, Sara, Nemanja Stanisavljevic, Vukica Vujic, et al. "Light and sex interplay: Differential herbivore damage in sun and shade in dioecious Mercurialis perennis." Archives of Biological Sciences 70, no. 3 (2018): 469–79. http://dx.doi.org/10.2298/abs171207007s.

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Interactions between plants and herbivorous insects can be shaped by light environment, resulting in differential herbivory in sun and shade. In dioecious species, the combination of plant sex and light-induced changes in defense traits and nutritive value can alter the patterns of foliar damage. We explored the combined effects of light environment and plant sex on natural herbivore damage and plant traits in the dioecious understory forb Mercurialis perennis on Mt. Kopaonik (Serbia). The role of plant traits in predicting the extent of damage was examined as well. Male and female plants from

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Breman, J. W., A. R. Blount, K. H. Quesenberry, and T. R. Sinclair. "Foliage freeze tolerance trait diversity in bahiagrass (Paspalum notatumFlügge)." New Zealand Journal of Agricultural Research 51, no. 2 (2008): 191–98. http://dx.doi.org/10.1080/00288230809510447.

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Rweyongeza, D. M., F. C. Yeh, and N. K. Dhir. "Heritability and Correlations for Biomass Production and Allocation in White Spruce Seedlings." Silvae Genetica 54, no. 1-6 (2005): 228–35. http://dx.doi.org/10.1515/sg-2005-0033.

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Abstract Tree growth is a multidimensional trait and families vary for components of growth such as height, diameter, foliage and roots. Therefore, variation in tree growth is better studied by analysing biomass production and allocation than simple traits. In addition, biomass is better linked to products such as pulp and wood energy than simple traits. We analysed biomass of 3-year old open-pollinated greenhouse seedlings of white spruce to determine (1) heritability for biomass production and allocation to shoot and root components, (2) correlations between biomass traits, and biomass trait

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Deng, Zhanao, Fahrettin Goktepe, and Brent K. Harbaugh. "Inheritance of Leaf Spots and Their Genetic Relationships with Leaf Shape and Vein Color in Caladium." Journal of the American Society for Horticultural Science 133, no. 1 (2008): 78–83. http://dx.doi.org/10.21273/jashs.133.1.78.

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The ornamental value of caladium (Caladium ×hortulanum Birdsey) depends to a large extent on its foliar characteristics. Efficient genetic improvement of caladium foliar characteristics requires a good understanding of the inheritance of these traits, including leaf shape, color, and spots. This study was conducted to determine the inheritance of leaf spots in caladium and to understand their relationships with leaf shape and main vein color. Eighteen controlled crosses were made among eight commercial cultivars expressing red or no leaf spots, and progeny of these crosses were observed for se

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Ahmad, Zahoor, Ejaz Ahmad Warraich, Muhammad Aamir Iqbal, et al. "FOLIAGE APPLIED SILICON AMELIORATES DROUGHT STRESS THROUGH PHYSIO-MORPHOLOGICAL TRAITS, OSMOPROTECTANTS AND ANTIOXIDANT METABOLISM OF CAMELINA (Camelina sativa L.) GENOTYPES." Acta Scientiarum Polonorum Hortorum Cultus 20, no. 4 (2021): 43–57. http://dx.doi.org/10.24326/asphc.2021.4.4.

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Silicon (Si) is one of the best plant defense elements against the biotic and abiotic stresses. Camelina plants accumulate Si which serves in protection against drought stress. The present study was conducted to investigate the impact of different doses of foliage applied Si (0, 3, 6 and 9 mM) under water stress (40% field capacity, FC) and non-stress conditions (100% FC) on camelina genotypes (Canadian and Australian). The imposed drought drastically decreased the growth parameters like root-shoot length and plant fresh and dry weight and also had negative impact on the chlorophyll content al

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Adam, Radkowski, and Radkowska Iwona. "Influence of foliar fertilization with amino acid preparations on morphological traits and seed yield of timothy." Plant, Soil and Environment 64, No. 5 (2018): 209–13. http://dx.doi.org/10.17221/112/2018-pse.

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The aim of the study was to determine the influence of amino acid fertilizer on yielding ability, morphological characteristics and chlorophyll index of timothy cv. Owacja grown for seed. The experiment was conducted in 2015–2017 at the Experimental Station in Prusy near Krakow, which belongs to the Institute of Plant Production of the University of Agriculture in Krakow. The field trial was set up as a randomized block design with four replications. The soil in the experimental field was a degraded chernozem formed from loess. The plots were sprayed with three doses of Microfert amino acid fe

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BHARGAVA, Atul, Francisco FUENTES, Sudhir SHUKLA, Shilpi SRIVASTAVA, and Deepak OHRI. "Genetic Association between Foliage Yield and Contributing Traits in Vegetable Chenopods: Implications for Genetic Improvement." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 47, no. 1 (2018): 24–33. http://dx.doi.org/10.15835/nbha47111199.

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A two-year study was conducted to evaluate the foliage yield potential in 13 germplasm lines of Chenopodium album for 3 successive cuttings. Correlations among foliage yield and its contributing traits, along with path analysis was also worked out. Foliage yield was maximum for C. album IC 107297, followed by C. album H.P. and C. album amaranticolor. The genotype × year interaction was non-significant for all the traits except stem diameter and moisture content. Leaf size, plant height and stem diameter showed significant positive correlation with foliage yield both at phenotypic and genotypic

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Cho, Youngkoo, Victor N. Njiti, Xinbo Chen, et al. "Quantitative Trait Loci Associated with Foliar Trigonelline Accumulation inGlycine MaxL." Journal of Biomedicine and Biotechnology 2, no. 3 (2002): 151–57. http://dx.doi.org/10.1155/s1110724302204039.

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The objective of this study was to utilize aGlycine maxRIL population to (1) evaluate foliar trigonelline (TRG) content in field-grown soybean, (2) determine the heritability of TRG accumulation, and (3) identify DNA markers linked to quantitative trait loci (QTLs) conditioning variation in TRG accumulation. Frequency distributions of 70 recombinant inbred lines showed statistically no significant departure from normality(P>.05)for TRG accumulation measured at pod development stage (R4). Six different molecular linkage groups (LGs) (B2, C2, D2, G, J, and K) were identified to be linked to Q

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Stone, Christine, Laurie Chisholm, and Simon McDonald. "Effects of leaf age and psyllid damage on the spectral reflectance properties of Eucalyptus saligna foliage." Australian Journal of Botany 53, no. 1 (2005): 45. http://dx.doi.org/10.1071/bt04062.

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Leaf chlorophyll content is influenced directly by many environmental stress factors. Because leaf pigment absorption is wavelength dependent, numerous narrow-band reflectance-based indices have been proposed as a means of assessing foliar health and condition. Chlorophyll content, however, also varies with leaf developmental stage. In this study, a range of morphological and physiological traits including insect damage, relative chlorophyll content (SPAD values), chlorophyll fluorescence (Fv/Fm) and reflectance spectra was measured of leaves sampled from mature Eucalyptus saligna. Relative di

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Adeniji, OT. "Genetic variation and heritability for foliage yield and yield component traits in edible Amaranthus cruentus [L.] Genotypes." Bangladesh Journal of Agricultural Research 43, no. 3 (2018): 513–24. http://dx.doi.org/10.3329/bjar.v43i3.38397.

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The field experiment with nine Amaranthus cruentus genotype was conducted, to estimate the magnitude of genetic variability, heritability and genetic advance for leaf yield and contributing traits of amaranth genotypes during 2013 and 2017 cropping seasons. Field experiment was carried out in a randomized complete block design with three replications between 2013 and 2014 cropping season in Jalingo Taraba state. Data were collected on branches/plant, leaves/plant, leaf length, lead width, leaf fresh weight, leaf dry weight, marketable foliage yield, non- marketable foliage yield and plant heig

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Dickie, Ian A., Nina Koele, Joel D. Blum, James D. Gleason, and Matthew S. McGlone. "Mycorrhizas in changing ecosystems,." Botany 92, no. 2 (2014): 149–60. http://dx.doi.org/10.1139/cjb-2013-0091.

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Ecosystems change between arbuscular mycorrhizal and ectomycorrhizal vegetation dominance over anthropological and geological time scales, yet consequences for ecosystem function are unclear. We review four hypotheses for the effect of mycorrhizal status on ecosystem function. Specifically, that differences between ectomycorrhizal and arbuscular mycorrhizal dominated ecosystems are driven by (1) foliar trait differences, (2) positive plant–soil feedback in ectomycorrhizal plants, (3) differences in the ability to dissolve rocks as a source of nutrition, and (4) differences in the ability to us

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Fischer, R. A., and G. J. Rebetzke. "Indirect selection for potential yield in early-generation, spaced plantings of wheat and other small-grain cereals: a review." Crop and Pasture Science 69, no. 5 (2018): 439. http://dx.doi.org/10.1071/cp17409.

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Early-generation (e.g. F2–F4) selection for grain yield itself is frustrated in particular by the small amounts of seed available. However, there has long been an interest in traits related to yield and reasonably faithfully expressed in spaced planting arrangements using little seed; these are potentially useful as indirect selection criteria for yield, with the view to increasing genetic progress per unit cost. This subject is revisited in this review, targeting potential yield (yield in the absence of abiotic and biotic stresses) of small-grain cereals. A brief assessment of current breedin

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Fernando, Denise R., Jonathan P. Lynch, Meredith T. Hanlon, and Alan T. Marshall. "Foliar elemental microprobe data and leaf anatomical traits consistent with drought tolerance in Eucalyptus largiflorens (Myrtaceae)." Australian Journal of Botany 69, no. 4 (2021): 215. http://dx.doi.org/10.1071/bt20170.

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In food-productive river basins, ecosystems reliant on natural flows are affected by climate change and water removal. One such example is Australia’s Murray–Darling Basin (MDB), to which the ecologically important black box tree Eucalyptus largiflorens (Myrtaceae) is unique. Little is known about its mineral nutrition and response to flooding. A field study conducted at Hattah Kulkyne National Park on the MDB examined nutrient and Al distribution in mature and young foliage of trees whose status varied with respect to the presence of surface floodwaters. Black box is also of interest due to e

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Rashad, M. M. I., and Umakanta Sarker. "Genetic variations in yield and yield contributing traits of green amaranth." Genetika 52, no. 1 (2020): 393–407. http://dx.doi.org/10.2298/gensr2001393r.

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The experiment was carried out at the experimental farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur during 2015 using twenty promising genotypes (AA21 to AA40) of green amaranth in Randomized Complete Block Design (RCBD) with three replications to study the variability, genetic parameters, association of yield related morphological traits to foliage yield and to find out the direct and indirect effects of components characters towards foliage yield. The significant analysis of variance revealed wide range of variability among the twenty genotypes of gr

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Phuc, B. H. N., and J. E. Lindberg. "Ileal and total tract digestibility in growing pigs given cassava root meal diets with inclusion of cassava leaves, leucaena leaves and groundnut foliage." Animal Science 71, no. 2 (2000): 301–8. http://dx.doi.org/10.1017/s1357729800055144.

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AbstractGrowing pigs fitted with post-valve T-caecum cannulas were used in a change-over design experiment (5 ✕ 5) to determine the ileal and total tract apparent digestibility and hindgut disappearance of dietary components and energy in a cassava root and soya-bean meal-based diet with an inclusion rate at 0·15 of the dry matter (DM) of either cassava leaf meal, ensiled cassava leaves, groundnut foliage, or leucaena leaves.The ileal and total tract apparent digestibilities of organic matter (OM), crude protein, nitrogen-free extractives and energy of the diets were significantly reduced with

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