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Journal articles on the topic 'Leaf thickness'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Peng, S., F. Garcia, R. Laza, and K. G. Cassman. "Leaf Thickness Affects the Estimation of Leaf N Using a Chlorophyll Meter." International Rice Research Newsletter 17, no. 6 (1992): 19–20. https://doi.org/10.5281/zenodo.7219131.

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This article 'Leaf Thickness Affects the Estimation of Leaf N Using a Chlorophyll Meter' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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2

Witkowski, E. T. F., and Byron B. Lamont. "Leaf specific mass confounds leaf density and thickness." Oecologia 88, no. 4 (1991): 486–93. http://dx.doi.org/10.1007/bf00317710.

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3

Li, Mengmeng, and Jian Kang. "Influence of Leaf Physical Properties on Single-Leaf Vibrational Response to Sound." Forests 11, no. 1 (2020): 115. http://dx.doi.org/10.3390/f11010115.

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Plant leaves respond to environmental sounds by vibration. This study aimed to examine such responses by evaluating the influences of physical properties on vibrational amplitude, velocity and frequency before and during sound stimulation. Nine plant species with a wide range of leaf sizes, qualities and thicknesses and petiole lengths, widths and thicknesses were selected. In the absence of external sound, the leaf amplitude was ~1 μm, the vibrational velocity was ~0.05 mm s-1 and the vibrational frequency was ~0–15 Hz. After sound stimulation, however, the amplitude increased by 1–5.4×, the

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4

Wooge, Jon D., and John A. Barden. "Seasonal Changes in Specific Leaf Weight and Leaf Anatomy of Apple." HortScience 22, no. 2 (1987): 292–94. http://dx.doi.org/10.21273/hortsci.22.2.292.

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Abstract Newly expanded interior canopy leaves of apple (Malus domestica Borkh.) had lower specific leaf weight (SLW), leaf thickness, palisade depth, and number of palisade cell layers than middle or peripheral leaves from late May to early October. Leaves on the periphery of the canopy had the highest SLW values at all sample dates. Differences in leaf SLW, leaf thickness, and palisade depth between interior and peripheral leaves increased as the season progressed, primarily due to increases in peripheral leaves that developed later in the season. Regression analysis showed SLW to be signifi

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5

Sui, Xue Yan, Xiaodong Zhang, Yong Wang, and Shao Kun Li. "Estimation of Leaf Thickness with Remote Sensing." Applied Mechanics and Materials 263-266 (December 2012): 339–45. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.339.

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Leaf thickness is one important index of describing plant growing conditions. But the measurements now are all tedious and destructive. In order to carry out real-time, live, non-destructive testing of leaf thickness, the study took cotton leaves as the research object. The correlations of leaf thickness with reflectance, vegetable index and spectral figure index were analyzed separately. And then the cause of correlation was studied. Three regression models were set up with the 3 parameters which had high correlation with leaf thickness. Among these models, the highest relative error is 7.4%,

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6

Daningsih, E., A. N. Mardiyyanigsih, Y. O. Da Costa, R. Primawati, and S. Karlina. "Changes of stomatal distribution and leaf thickness in response to transpiration rate in six dicot plant species." IOP Conference Series: Earth and Environmental Science 976, no. 1 (2022): 012060. http://dx.doi.org/10.1088/1755-1315/976/1/012060.

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Abstract Changes in leaf anatomy can be influenced by the surrounding environment and several other factors. Shade plants or ornamental plants themselves also have their characteristics in responding to surrounding conditions through transpiration. This study aimed to measure the rate of transpiration related to changes in the distribution of stomata and leaf thickness of six types of dicot ornamental plants and to describe the leaf anatomy of each type. The experiment used Completely Randomized Design (CRD) with six types of plants as treatment with three replications. Transpiration rate was

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7

Cooper, R. L., J. V. Ware, and D. D. Cass. "Leaf thickness of Salix spp. (Salicaceae) from the Athabasca sand dunes of northern Saskatchewan, Canada." Canadian Journal of Botany 82, no. 11 (2004): 1682–86. http://dx.doi.org/10.1139/b04-132.

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Leaf thicknesses of Salix taxa (Salix brachycarpa Nutt. var. psammophila Raup, Salix planifolia Pursh subsp. tyrrellii (Raup) Argus, Salix silicicola Raup, and Salix turnorii Raup) from the Athabasca sand dunes in northern Saskatchewan, Canada, were evaluated and compared with those of their respective widespread progenitors (S. brachycarpa Nutt. var. brachycarpa, S. planifolia Pursh subsp. planifolia, Salix alaxensis (Anders.), and Salix eriocephala Michx. var. famelica (C. R. Ball) Dorn). Leaf thickness was measured using standard light microscopy, and results were compared with the occurren

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8

Fadin, Dauri Aparecido, and Patricia Andrea Monquero. "Leaf characterization of Spermacoce verticillata at three stages of development." Australian Journal of Crop Science, no. 13(05) 2019 (May 20, 2019): 792–97. http://dx.doi.org/10.21475/ajcs.19.13.05.p1663.

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Weed control is an essential practice in crop management. However, the use of herbicides may not be effective in certain situations, such as when problems are encountered in the application technology and when tolerant individuals and resistant biotypes are observed. In the cotton producing areas of the state of Bahia, Brazil, Spermacoce verticillata (shrubby false buttonweed) is not effectively controlled during burndown applications. During different developmental stages, plants can modify their leaves’ anatomical structures, which may influence herbicide control by modifying the retention,

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9

Larios Mendieta, Kalindhi A., J. Gordon Burleigh, and Francis E. Putz. "Pith width, leaf size, and twig thickness." American Journal of Botany 108, no. 11 (2021): 2143–49. http://dx.doi.org/10.1002/ajb2.1800.

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10

Afzal, Amin, Sjoerd W. Duiker, and John E. Watson. "Leaf thickness to predict plant water status." Biosystems Engineering 156 (April 2017): 148–56. http://dx.doi.org/10.1016/j.biosystemseng.2017.01.011.

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11

Falkowski, M., S. Kozłowski, and B. Witkowska. "Charakterystyka anatomiczno-morfologiczna blaszek liściowych odmian Lolium multiflorum [Anatomical-morphological characteristics of Lolium multiflorum leaf blades]." Acta Agrobotanica 31, no. 1–2 (2015): 85–94. http://dx.doi.org/10.5586/aa.1978.009.

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Results are reported of morphological-anatomical investigations on cultivated varieties of <i>Lolium multiflorum</i>. These varieties exhibit wide differences as regards the width, thickness and length of leaf blades and thicknes of the dermal layer, mesophyll and diameter of vascular bundles. For a more precise characteristic of varieties the ratio of the derma layer thickness to the vascular bundles diameter and mesophyll thickness is important. In the characterization of varieties the correlations between morphological and anatomical traits of leaves can be utilized.

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12

Dekoum, VM Assaha, Clovis Awasume Awasume, Tabi Tabot Pascal, and Mebong Mfombep Priscilla. "HARVESTING COMPOUNDS THE EFFECT OF WATER DEFICIT ON THE GROWTH AND YIELD OF WATER LEAF [TALINUM TRIANGULARE (JACQ.) WILLD." Journal of Tertiary and Industrial Sciences (JTIS), HTTTC Kumba, University of Buea 3, no. 2 (July, 2023) (2023): 42–54. https://doi.org/10.5281/zenodo.8216293.

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Waterleaf is an important leafy vegetable in many parts of West and Central Africa, which can survive long periods of water deficit owing to its succulence and induced crassulacean acid metabolism. However, it is not known whether harvesting during the offseason i.e. under water-limited conditions can alter the resilience of the plant to adverse environmental conditions. To investigate this, a pot experiment was set up in the screen house in which, uniform-sized cuttings of waterleaf were planted in 10-L pots filled with field soil and irrigated as needed until the plants were established. Ten

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Rohman, Khoirur, Rika Dwi Hidayatul Qoryah, Aris Zainul Muttaqin, and Santoso Mulyadi. "ANALISIS PENGARUH TEBAL PLAT TERHADAP KARAKTERISTIK MEKANIK PEGAS DAUN PADA PROTOTIPE MOBIL FISH CAR UNEJ (FCU) MUDSKIP." Jurnal Teknosains 10, no. 2 (2021): 141. http://dx.doi.org/10.22146/teknosains.62656.

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Fish Car Unej (FCU) Mudskip is a car designed with a rural terrain system, especially for fishing transportation. FCU Mudskip uses leaf spring suspension at the rear to support the weight of the vehicle, that is leaning towards the rear. The load of the vehicle is inclined to the rear due to the car carrying system in the form of fish and water. This conveying system can cause leaf spring failure. Therefore, this study aims to determine the value of stress, strain and cycle on leaf springs. Ansys 18.1 software was used to obtain stress, strain, and leaf spring cycle values with a thickness of

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14

Groom, Philip K., Byron B. Lamont, and Adrienne S. Markey. "Influence of Leaf Type and Plant Age on Leaf Structure and Sclerophylly in Hakea (Proteaceae)." Australian Journal of Botany 45, no. 5 (1997): 827. http://dx.doi.org/10.1071/bt96115.

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Hakea Schrader (Proteaceae) species possess one of two contrasting leaf morphologies—broad or terete. Terete leaves are either simple (needle-like) or two- or three-pronged, and are further characterised by their greater thickness (> 1 mm), smaller projected area and mass, higher mass per unit area (a measure of sclerophylly) and lower density than broad leaves. Broad leaves are much more variable in their morphology, ranging from narrow-linear to fan-shaped or ovoid-elliptic, and may be flat, undulate, shell-shaped or spiralled. The greater thickness and sclerophylly of terete leaves can b

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15

Ahmad, Iftikhar, Mohammad Sohail, Mansoor Hameed, et al. "Morpho-anatomical determinants of yield potential in Olea europaea L. cultivars belonging to diversified origin grown in semi-arid environments." PLOS ONE 18, no. 6 (2023): e0286736. http://dx.doi.org/10.1371/journal.pone.0286736.

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Plant performance is mainly estimated based on plant architecture, leaf features and internal microstructural changes. Olive (Olea europaea L.) is a drought tolerant, oil yielding, and medium sized woody tree that shows specific structural and functional modifications under changing environment. This study was aimed to know the microstructural alteration involving in growth and yield responses of different Olive cultivars. Eleven cultivars were collected all over the world and were planted at Olive germplasm unit, Barani Agricultural Research Institute, Chakwal (Punjab) Pakistan, during Septem

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16

Rajasri Bandi and Dr.P.Snehalatha. "LEAF SPRING EYE THICKNESS OPTIMIZATION USING SOLID WORKS AND ANSYS PERFORMANCE ANALYSIS." international journal of engineering technology and management sciences 7, no. 3 (2023): 44–54. http://dx.doi.org/10.46647/ijetms.2023.v07i03.006.

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“Comparison Analysis of Leaf Spring with Eye Thickness of 18mm and 17mm Using Solid works, and Performance Analysis Using ANSYS ˮ was the subject of a study. The specific load and Unladen load were used to compare the eye thicknesses of 17 mm and 18 mm. The leaf springs in the vehicles make the passengers more comfortable by reducing vertical vibration caused by the unevenness of the road geometry. When a spring loses its shape over time, the life of the spring decreases, which can cause the weight distribution on four wheels to change and make it difficult to handle. The cause of leaf spring

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17

Lauriks, F. S., H. A. L. Van de Put, D. J. W. De Pauw, and K. Steppe. "Use of leaf thickness sensors in horticultural crops." Acta Horticulturae, no. 1182 (November 2017): 79–86. http://dx.doi.org/10.17660/actahortic.2017.1182.9.

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18

Mendes, Keila Rego, and Ricardo Antonio Marenco. "Leaf traits and gas exchange in saplings of native tree species in the Central Amazon." Scientia Agricola 67, no. 6 (2010): 624–32. http://dx.doi.org/10.1590/s0103-90162010000600002.

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Global climate models predict changes on the length of the dry season in the Amazon which may affect tree physiology. The aims of this work were to determine the effect of the rainfall regime and fraction of sky visible (FSV) at the forest understory on leaf traits and gas exchange of ten rainforest tree species in the Central Amazon, Brazil. We also examined the relationship between specific leaf area (SLA), leaf thickness (LT), and leaf nitrogen content on photosynthetic parameters. Data were collected in January (rainy season) and August (dry season) of 2008. A diurnal pattern was observed

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19

Zhang, Peng, Yuxiang Wen, Lei Wang, Hui Zhang, G. Geoff Wang, and Tonggui Wu. "Leaf Structural Carbohydrate Decreased for Pinus thunbergii along Coast–Inland Gradients." Forests 11, no. 4 (2020): 449. http://dx.doi.org/10.3390/f11040449.

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Although photosynthesis (carbohydrate production) decreases under wind load, it is unclear how carbohydrate categories allocation changes. We determined the leaf morphology (specific leaf area (SLA), needle thickness), anatomy (cuticle thickness, epidermal thickness), photosynthesis (effective quantum yield of Photosystem II (Y(II)), carbohydrate (structure carbohydrate (SC) and non-structure carbohydrate (NSC)), and environmental variables in Pinus thunbergii plantations from coast to inland, with wind speed decreasing. As expected, wind, accounting for 19–69% of the total variation, was the

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20

Hussain, Zahraa Zuhair, Sindab Sami Jassim Al-Dahwi, and Hassan Moomn Lelo. "Effect of Foliar Fertilization with Potassium Silicate on some Morphological Characters of Strawberry Leaves Reducing Sucking Insects." IOP Conference Series: Earth and Environmental Science 1225, no. 1 (2023): 012085. http://dx.doi.org/10.1088/1755-1315/1225/1/012085.

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Abstract The results showed that foliar fertilization with potassium silicate had a clear effect on increasing the thickness of the upper and lower epidermal cuticle layer and increased the thickness of the leaf, as the thickness after the first spray of the upper epidermal cuticle reached 22 microns and the lower epidermal cuticle 11 microns, and the leaf thickness reached 194.8 microns. As for after the second spray, the thickness of the leaf and the upper and lower cuticle layer reached 198.66, 25.33, 16.66 microns, and the third spray was characterized by an increase in the thickness of th

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21

Ciarlo, Letizia, Massimo Chiari, Maria Clelia Galassi, et al. "Practices and Rules of 16th Century Genoese Gilding: Exploring Gold Leaf Thickness and Caratage through X-ray and Ion Beam Techniques." Heritage 7, no. 7 (2024): 3630–42. http://dx.doi.org/10.3390/heritage7070172.

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This study investigates the practices and rules of Genoese gilding, drawing insights from a 16th-century manuscript containing regulations for gold leaf production. Employing X-ray and ion beam techniques, we quantitatively assess the manuscript’s gold leaf thickness without destructive sampling. Artisanal goldbeater-produced leaves of different thicknesses, applied with a guazzo or mordant technique, served as standards. Further analysis of samples with unknown thickness from the furniture of Palazzo Spinola di Pellicceria in Genoa (Italy) has confirmed the method’s applicability to practical

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22

Shen, F. C., and C. X. Liu. "Genetic Studies on Rice Flag Leaf Weight and Midrib and Side Vein Thickness." International Rice Research Newsletter 15, no. 3 (1990): 8–9. https://doi.org/10.5281/zenodo.7179334.

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This article 'Genetic Studies on Rice Flag Leaf Weight and Midrib and Side Vein Thickness' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.

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23

Thiesen, Leonardo Antonio, Marcos Vinícius Marques Pinheiro, Evandro Holz, et al. "Phenotypic plasticity of Aloysia citrodora: anatomical changes to water availability and seasons." Comunicata Scientiae 13 (June 12, 2022): e3590. http://dx.doi.org/10.14295/cs.v13.3590.

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The objective was to evaluate the anatomical changes of the leaves of Aloysia citrodora submitted to different water availability during the seasons. The experiment was conducted in a greenhouse, in a randomized block design, bifactorial 4x4, with four seasonal factors (autumn, winter, spring, and summer) and simulations of water availability (25, 50, 75 and 100% of field capacity) with four repetitions. They were evaluated in μm: the thickness of the adaxial and abaxial cuticles, adaxial and abaxial epidermis, palisade and lacunous parenchyma, mesophyll and leaf thickness of the transversal s

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24

Dacosta, Yuliana Ovan, and Entin Daningsih. "Ketebalan Daun dan Laju Transpirasi Pada Tanaman Hias Dikotil." Jurnal Ilmu Pertanian Indonesia 27, no. 1 (2022): 40–47. http://dx.doi.org/10.18343/jipi.27.1.40.

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Transpiration rate internally depends on the water content that occupies the tissue in the leaves, which is reflected in the thickness of the leaves. This study measured the transpiration rate and leaf thickness of ornamental dicotyledon plants. The experiment used Factorial Completely Randomized Design (CRD) with three replications. Six species of dicotyledon plants and three parts of the plant were the main factors. The interaction between plant species and plant parts was a combination factor. The transpiration rate was measured using a weighing method and leaf thickness was measured from t

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25

Zakariyya, Fakhrusy, Didik Indradewa, and Teguh Iman Santoso. "Changes of leaf anatomical profile of cocoa clones seedlings in response to drought." Pelita Perkebunan (a Coffee and Cocoa Research Journal) 35, no. 3 (2019): 177–85. http://dx.doi.org/10.22302/iccri.jur.pelitaperkebunan.v35i3.390.

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Cocoa is a plant that is very sensitive to drought during its growth and development phase, which causes changes up to the anatomical and morphologicallevel. This research is aimed to examine the changes on several leaf anatomical characteristics of three cocoa clones under the drought stress. This research was conducted in a greenhouse of Indonesian Coffee and Cocoa Research Institute, Jember, East Java, Indonesia in January – December 2017. The research was designedusing randomized complete block design with two factors including clones and watering time interval, with three replications. Th

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26

Dorly, Dorly, and Yohana C. Sulistyaningsih. "Anatomi Daun Beberapa Talas Liar (Colocasia esculenta (L.) Schott dari Kabupaten Bogor." Caraka Tani: Journal of Sustainable Agriculture 22, no. 1 (2018): 6. http://dx.doi.org/10.20961/carakatani.v22i1.20528.

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Leaf anatomy characters are commonly stable, however some of them can change because of environmental influence. Identification of those characters are necessary to be conducted by observing anatomical structure of the plants grown out side of the natural habitat. The objective of this research is to examine the stability of leaf anatomy characters of wild taro on their natural habitat and after planted in the dry field. Leaf anatomical observation was conducted by preparing paradermal and transversal sections. The result indicated that leaf anatomical character was the number of palisade laye

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27

Shi, Hongxiao, Xinhong Wu, Hai Wang, Sibagen Ha, Tingting Yang, and Wenhui Liu. "Dwarfing and the Underlying Morphological Changes of Poa alpigena Plants in Response to Overgrazing Conditions." Plants 11, no. 3 (2022): 336. http://dx.doi.org/10.3390/plants11030336.

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Poa alpigena is a dominant grass species in alpine meadows, which is sensitive to environmental conditions. In this study, we analyzed the characteristics of the anatomical structure of the stems and leaves of Poa alpigena in overgrazed and enclosed conditions in order to determine the dwarfing morphological mechanism associated with overgrazing. The results show that leaf thickness, leaf epidermal thickness, epidermal cell area, and phloem thickness increased with increased grazing intensity (p < 0.05). In contrast, xylem thickness, mesophyll cell area, and guide wall thickness decreased w

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28

Lubarda, Vlado, and Marko Lubarda. "Nipping analysis of a two-leaf spring strengthened by an additional full-length leaf." Theoretical and Applied Mechanics, no. 00 (2025): 7. https://doi.org/10.2298/tam241225007l.

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Nipping analysis of a rectangular two-leaf spring strengthened by an additional full-length leaf is presented. Closed form expressions are derived for the initial gaps between the leaves which make the maximum stresses in all the leaves within the clamped cross-section of the loaded spring equal to each other. The derived expressions are general in the sense that they apply for any values of the introduced leaf-length and thickness parameters. Two initial gaps between the pairs of consecutive leaves are needed to achieve the desired stress reduction. The required gaps can be either positive or

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29

Febriyani, Pangesti Ayu Wandari, Entin Daningsih, and Asriah Nurdini Mardiyyaningsih. "Effect of Transpiration on the Monocot Ornamental Plants Leave Anatomy." Journal of Experimental Biology and Agricultural Sciences 11, no. 3 (2023): 598–611. http://dx.doi.org/10.18006/2023.11(3).598.611.

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Transpiration refers to the loss of water from leaves, and increased levels can lead to changes in leaf morphology and anatomy, affecting the total thickness. This study aims to determine the effect of transpiration on leaf anatomy, particularly thickness, in six types of monocots ornamental plants, namely Rhoeo discolor (L'Her.) Hance ex Walp., Hymenocallis littoralis (Jacq.) Salisb., Cordyline fruticosa (L.) A. Chev., Chlorophytum laxum R. Br, Dracaena reflexa Lam, and Aglaonema commutatum Schott. The study procedures were conducted using a Factorial Completely Randomized Design (Factorial C

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30

Ningsih, Chindy Sulastri, and Entin Daningsih. "Ketebalan Daun dan Laju Transpirasi Tanaman Hias Monokotil." Jurnal Ilmu Pertanian Indonesia 27, no. 4 (2022): 514–20. http://dx.doi.org/10.18343/jipi.27.4.514.

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Leaves are the main organ in plants. In general, leaf thickness varies amongst plants and is related to the transpiration rate. This study measured leaf thickness and transpiration rate in six ornamental monocotyledon plants. The experiment used Factorial Completely Randomized Design (CRD) with three replications. The main factors were six monocotyledon plants and three plant parts; combination factors were interactions between plant species and plant parts. Leaf thickness was measured from the upper to the lower epidermis before and after measuring the transpiration rate. The transpiration ra

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Teixeira, Generosa, Ana Monteiro, Cristina Santos, and Carlos M. Lopes. "Leaf morphoanatomy traits in white grapevine cultivars with distinct geographical origin." Ciência e Técnica Vitivinícola 33, no. 1 (2018): 90–101. http://dx.doi.org/10.1051/ctv/20183301090.

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This study aims to compare the leaf morphoanatomical characteristics of sevenVitis viniferasubsp.viniferawhite cultivars with different geographical origin, grown side by side at the same “terroir”. The leaf morphoanatomical traits analyzed under light and scanning electron microscopy (SEM) showed large variability among genotypes. Significant differences between cultivars were observed in single leaf area, specific leaf area, leaf density and in the thickness of cuticle, upper and lower epidermal cells and mesophyll. Leaf dry mass per area presented a significant positive correlation with lea

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32

McBURNEY, T. "The Relationship Between Leaf Thickness and Plant Water Potential." Journal of Experimental Botany 43, no. 3 (1992): 327–35. http://dx.doi.org/10.1093/jxb/43.3.327.

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33

Daningsih, Entin, Nadia Fransiska, and Asriah Nurdini Mardiyyaningsih. "Thickness of Leaf Anatomical Tissue Dicot Ornamental Plants at Different Light Intensities." International Journal of Scientific Research and Management 11, no. 02 (2023): 203–13. http://dx.doi.org/10.18535/ijsrm/v11i02.b01.

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Different light intensities affect the leaf anatomy. This study aims to measure the thickness of the anatomical tissue of the leaves of six types of dicot ornamental plants at different light intensities. This study used a quantitative experimental method with a completely randomized factorial design (CRD-Factorial). This design consisted of two factors, namely the main factors were six types of plants, namely Codiaeum variegatum (L.) A. Juss., Bougainvillea glabra Choisy, Tabernaemontana divaricata (L.) R, Br. Ex Roem. & Schult., Syzygium paniculatum Gaertn, Excoecaria cochinchinensis Lou

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34

Alponsin, Tesri Maideliza, and Zozy Aneloi Noli. "STUDI ANATOMI DAUN CANTIGI (Vaccinium korinchense Ridl.) PADA ALTITUD BERBEDA DI GUNUNG TALANG." Metamorfosa: Journal of Biological Sciences 4, no. 1 (2017): 114. http://dx.doi.org/10.24843/metamorfosa.2017.v04.i01.p17.

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The study about leaf anatomy of Bilberry (Vaccinium korinchense RILD.) at altitude gradient on the Talang Mountain has been carried out in October to December 2015. The goal research is to compared that leaf thick tissues Bilbellry at altitude gradient. The sample were collected at Talang Mountain. The research used survey method and purpossive sampling with five altitude gradient (2200-2529 meter above sea level). Leaf section was maked at the Plant Structures developments Laboratory, Department Biology, Faculty of Mathematics and Natural Sciences, Andalas University. Data analysis used Krusk

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35

Zhai, Shengcheng, Yoshiki Horikawa, Tomoya Imai, and Junji Sugiyama. "Cell wall ultrastructure of palm leaf fibers." IAWA Journal 35, no. 2 (2014): 127–37. http://dx.doi.org/10.1163/22941932-00000054.

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The cell wall organization of leaf sheath fibers in different palm species was studied with polarized light microscopy (PLM) and transmission electron microscopy (TEM). The secondary wall of the fibers consisted of only two layers, S1 and S2. The thickness of the S1 layer in leaf sheath fibers from the different palm species ranged from 0.31 to 0.90 μm, with a mean value of 0.57 μm, which was thicker than that of tracheids and fibers in secondary xylem of conifers and dicotyledons. The thickness of the S2 layer ranged from 0.44 to 3.43 μm, with a mean value of 1.86 μm. The ratio of S1 thicknes

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36

Boika, Olena, and Olena Dubova. "PECULIARITIES OF THE LEAVES OF THREE WILD SUNFLOWER SPECIES." CURRENT TRENDS IN NATURAL SCIENCES 13, no. 26 (2024): 06–10. https://doi.org/10.47068/ctns.2024.v13i26.001.

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The study represents the results of the investigation of some peculiarities of the leaves of three wild sunflower species: Helianthus mollis, H. maximilliani, H. nutalli. The leaf width and length, leaf thickness and the thickness of the epidermis, and the peculiarities of the leaf pubescence were studied. The wild sunflower species can be a source of genes of tolerance for many factors, including diseases and drought. We found that the investigated species had statistically significant differences in the leaf blade parameters. The thickness of the leaf was similar. However, the epidermis thic

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Marenco, R. A., S. A. Antezana-Vera, and H. C. S. Nascimento. "Relationship between specific leaf area, leaf thickness, leaf water content and SPAD-502 readings in six Amazonian tree species." Photosynthetica 47, no. 2 (2009): 184–90. http://dx.doi.org/10.1007/s11099-009-0031-6.

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Yulchiev, Davron, Yermat Shermatov, Maria Radkevich, Oleg Pochugevskyi, and Islom Aripov. "Monitoring of Soil Salinity by Cotton Leaf Parameters and Planting Density." E3S Web of Conferences 563 (2024): 03055. http://dx.doi.org/10.1051/e3sconf/202456303055.

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The article deals with the problem of organising the monitoring of saline soils using the example of farms in the Hungry Steppe and the Khorezm region of Uzbekistan. Due to the variability of salinity levels, continuous monitoring is required, which is difficult to organise using existing methods. The authors propose the use of a bioindication of soil salinity based on the condition of cotton plants. The aim of the study was to test the possibility of using cotton plants as bioindicators of soil salinity and to search for measurable indicators for the practical implementation of bioindication.

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Taiwo, Esan Martins, Khairulzan Bin Yahya, Zaiton Haron, Gambo Makanjuola Dare, and Ayegbokiki Sunday. "Acoustic Characterization of Composites Made of Gypsum and Pineapple Leaf Fibres." American Journal of IR 4.0 and Beyond 2, no. 2 (2023): 30–38. http://dx.doi.org/10.54536/ajirb.v2i2.1802.

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The research sought to characterize the acoustic properties of gypsum composite which contained 2% pineapple leaf fibre (PALF) and plain gypsum with different thicknesses. The impact of composite thickness and 2%PALF inclusion on the acoustic properties of the PALF-gypsum composite (sound absorption coefficient and sound transmission loss) were examined. A comparison of the sound transmission loss and sound absorption coefficient for frequencies between 60 and 1600 Hz was made possible by acoustic tests using an impedance tube. The sound absorption results showed that adding 2 percent PALF to

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Curtis, Ellen M., Andrea Leigh, and Scott Rayburg. "Relationships among leaf traits of Australian arid zone plants: alternative modes of thermal protection." Australian Journal of Botany 60, no. 6 (2012): 471. http://dx.doi.org/10.1071/bt11284.

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Despite the importance of leaf traits that protect against critically high leaf temperatures, relationships among such traits have not been investigated. Further, while some leaf trait relationships are well documented across biomes, little is known about such associations within a biome. This study investigated relationships between nine leaf traits that protect leaves against excessively high temperatures in 95 Australian arid zone species. Seven morphological traits were measured: leaf area, length, width, thickness, leaf mass per area, water content, and an inverse measure of pendulousness

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Zhang, Zhen, Yu Fu, Hualong Li, et al. "Monitoring the leaf equivalent water thickness of kiwifruit in high temperature using leaf spectral reflectance." Spectroscopy Letters 55, no. 10 (2022): 659–72. http://dx.doi.org/10.1080/00387010.2022.2149558.

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Çali, Ilkay Öztürk, and Neslihan Karavin. "Auto-exhaust pollution effects on the leaf structure of Olea europea L." Bangladesh Journal of Botany 49, no. 3 (2020): 481–86. http://dx.doi.org/10.3329/bjb.v49i3.49528.

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Effects of auto-exhaust pollution on the leaf structure of Olea europea L. (Olive) were determined. Olive leaves were collected from three areas, such as, no low and heavy traffic areas with different traffic intensity. Anatomical layer thickness of leaves was studied in cross sections. Results showed that, the least values of layer thickness of leaves and total leaf thickness were obtained from high traffic area. Auto-exhaust pollution caused chlorosis and necrosis in morphological structure of olive leaves as well. The plant tolerated traffic-based pollution stress by decreasing anatomical l

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Sankhyan, Hari, and N. B. Singh. "Genetic Variation for Different Parameters in Dendrocalamus Hamiltonii (Maggar Bans) of Himachal Pradesh." Journal of Non-Timber Forest Products 20, no. 1 (2013): 7–11. http://dx.doi.org/10.54207/bsmps2000-2013-rs28zn.

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Genetic variation for different parameters in Dendrocalamus hamiltonii (Maggar Bans) was conducted among 23 genotypes of Himachal Pradesh, identified as plus bamboo stands. Observations on ten characters viz., culm height, diameter, internode length, no. of new sprouts, no. of culms, clump girth, leaf length, leaf breadth, culm wall thickness and biomass were recorded. Evaluation of bamboo (Dendrocalamus hamiltonii) at the age of three years indicated significant differences for all the characters. Estimates of heritability in broad sense were observed generally high for leaf breadth, biomass,

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Khan, Attaullah, Jingjue Sun, Nowsherwan Zarif, et al. "Effects of Increased N Deposition on Leaf Functional Traits of Four Contrasting Tree Species in Northeast China." Plants 9, no. 9 (2020): 1231. http://dx.doi.org/10.3390/plants9091231.

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Northeast China is persistently affected by heavy nitrogen (N) deposition. Studying the induced variation in leaf traits is pivotal to develop an understanding of the adaptive plasticity of affected species. This study thus assesses effects of increased N deposition on leaf morphological and anatomical traits and their correlation among and with biomass allocation patterns. A factorial experiment was conducted utilizing seedlings of two gymnosperms (Larix gmelinii, Pinus koraiensis) and two angiosperms (Fraxinus mandshurica, Tilia amurensis). Leaf mass per area and leaf density decreased and l

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Daningsih, Entin, Inka Febriyanti, and Asriah Nurdini Mardiyyaningsih. "The Thickness Changes of Anatomical Ornamental Monocotyledon Plant Leaves Affected by the Interactions between Plant Types and Light Intensity." Agrikultura 35, no. 2 (2024): 352–64. http://dx.doi.org/10.24198/agrikultura.v35i2.48669.

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The different levels of light intensity affect the anatomical thickness of monocotyledon ornamental plant leaves. The aim of this research was to determine the anatomical thickness of several monocotyledon ornamental plant leaves under different light intensities. The research used a factorial complete randomized design with two main factors, namely plant type and different light intensity, repeated three times. The first factor was the plant type, which consisted of six plant species of monocotyledon ornamental plants which were Chlorophytum laxum, Dracaena reflexa, Rhoeo discolor, Aglaonema

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Lapaz, Allan de Marcos, Lucas Aparecido Manzani Lisboa, Ronaldo da Silva Viana, et al. "Alterations in Leaf Ultrastructure in Varieties of Sugarcane Infected by Diseases." Journal of Agricultural Science 11, no. 11 (2019): 223. http://dx.doi.org/10.5539/jas.v11n11p223.

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Given the importance of viral, bacterial and fungal diseases in agriculture and their impact on crop yields, this study evaluated leaf ultrastructural changes in sugarcane varieties infected by these diseases, aiming to find morphological responses that may be associated to the decline of sugarcane yield. Three independent experiments were carried out with sugarcane varieties. In the three experiments, a randomised block design was used with 10 replications. The treatments consisted of the following diseases: mosaic from infection of variety SP86-155 by SCMV (experiment 1); stunting from infec

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Mosaferi, S., H. Hasanabadi, M. Keshavarzi, and M. Eskandari. "Leaf Anatomical Study of Solanum Species (Solanaceae) in Iran." Acta Botanica Hungarica 63, no. 3-4 (2021): 401–16. http://dx.doi.org/10.1556/034.63.2021.3-4.10.

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Solanum (Solanaceae) comprises cultivated and wild plants with 1400 species in the world and 14 species in Iran. Solanum is a taxonomically complex genus due to morphological similarities, phenotypic plasticity and hybridisation. Limited studies were done on anatomical features of this important genus. In this project, 10 native and exotic species of Solanum in Iran belonging to two subgenera were examined anatomically. Leaf mesophyll and midrib and indumentum were analysed using light microscope. Hand-made cross section method and Toluidine blue as colouring agent were used. Characters as len

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Amobi, Maduabuchi Inwele, and Bede Izuchukwu Ezewudo. "Utilisation of common leafy vegetables in the diets of giant West African snail Archachatina marginata (Swainson, 1821) (Stylommatophora: Achatinidae)." Brazilian Journal of Biological Sciences 6, no. 12 (2019): 181–87. http://dx.doi.org/10.21472/bjbs.061217.

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A study was conducted to evaluate the effects of utilisation of three leafy vegetable diets (bitter leaf Vernonia amygdalina, fluted pumpkin leaf Telfairia occidentalis and pawpaw leaf Carica papaya) on the growth performance of giant West African snail Archachatina marginata. A total of 90 A. marginata were used for the study. 30 snails were also subjected to three different dietary treatments in three replicates of 10 snails per replicate and fed with the fresh leaves of these vegetables over a period of 12 weeks. Results obtained recorded significant differences (P < 0.05) in terms of we

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Madail, Rafael Hansen, Leila Aparecida Sales Pio, Renata Alves Lara Silva Rezende, Moacir Pasqual, and Sebastião de Oliveira e. Silva. "Banana leaf anatomy characteristics related to ploidy levels." Acta Scientiarum. Agronomy 44 (June 29, 2022): e55709. http://dx.doi.org/10.4025/actasciagron.v44i1.55709.

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Many important crops have cultivars with different ploidy and provide a diverse choice of materials for breeding programs. Therefore, it is essential to accurately assess the ploidy of all breeding materials. Increased DNA content is known to have various effects on external and internal morphology, an effect known as the “nucleotypic effect”. Thus, anatomical assessment can be used as a tool for determining ploidy in plants, making the chromosome counting technique or flow cytometry unnecessary. This study aimed to evaluate the leaf anatomical characteristics of banana cultivars and understan

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Miao, Fuhong, Xiaoxu Yu, Xinkai Tang, et al. "The Responses of Stem and Leaf Functional Traits of Medicago sativa and Bromus inermis to Different Mixed Planting Patterns." Agronomy 13, no. 11 (2023): 2733. http://dx.doi.org/10.3390/agronomy13112733.

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This study investigated the differences in stem and leaf growth characteristics of Medicago sativa and Bromus inermis in the Jiaozhou region of China during 2019–2020 under three different planting modes of the two forages: monoculture, mixed species sowing in the same rows, and mixed species sowing in alternating rows. No special management of the experimental plots was carried out in this study to simulate as much as possible the growth of forages in their natural state. The stem and leaf characteristics influencing the dry matter weight were calculated using grey correlation. These characte

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