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1. Source and sink activity of Holcus lanatus in response to absolute and relative supply of nitrogen and phosphorus

Author:
Wang, Shuqiong; van Dijk, Jerry; de Boer, Hugo J.; Wassen, Martin J.
Source:
Functional plant biology 2021 v.48 no.5 pp. 493-502
ISSN:
1445-4408
Subject:
leaf area; specific leaf area,   etc   ; Holcus lanatus; nitrogen; phosphorus; photosynthesis; phytomass; plant growth;     Show all 8 Subjects
Abstract:
... Mineral nutrients influence photosynthesis and tissue formation; a shift from nitrogen (N)-limited to phosphorus (P)-limited growth induced by high N deposition may change plant growth in terms of physiology and morphology. This experiment showed that absolute and relative N and P supply affected net photosynthesis (source activity) and biomass formation (sink activity), and the relationship betwe ...
DOI:
10.1071/FP20118

2. Use of terrestrial remote sensing to estimate soybeans and beans biophysical parameters

Author:
Prudente, Victor Hugo Rohden; Mercante, Erivelto; Johann, Jerry Adriani; Souza, Carlos Henrique Wachholz de; Cattani, Carlos Eduardo Vizzotto; Mendes, Isaque Souza; Caon, Ivã Luis
Source:
Geocarto international 2021 v.36 no.7 pp. 773-790
ISSN:
1752-0762
Subject:
leaf area index,   etc   ; chlorophyll; models; photosynthetically active radiation; vegetation;     Show all 5 Subjects
Abstract:
... Vegetation Indices are important for agricultural monitoring and the assessment of biophysical attributes of different crops. In this context, the objective of this study was to evaluate the relationships between normalized difference vegetation indices (NDVIs) obtained by different terrestrial remote sensors (active and passive), with respect to biophysical aspects of soybeans and beans. With the ...
DOI:
10.1080/10106049.2019.1624982

3. Error Analysis of LAI Measurements with LAI-2000 Due to Discrete View Angular Range Angles for Continuous Canopies

Author:
Geng, Jun; Yuan, Gang; Chen, J. M.; Lyu, Chunguang; Tu, Lili; Fan, Weiliang; Tian, Qingjiu; Wu, Zhaofu; Tao, Tingye; Yu, Min; Zhu, Yongchao; Huang, Jianwei; Xu, Kaijian; Li, Jinchao; Wang, Shaoteng
Source:
Remote Sensing 2021 v.13 no.7
ISSN:
2072-4292
Subject:
leaf area index,   etc   ; canopy gaps; equations; leaves; probability; weight;     Show all 6 Subjects
Abstract:
... As a widely used ground-based optical instrument, the LAI-2000 or LAI-2200 plant canopy analyzer (PCA) (Li-Cor, Inc., Lincoln, NE) is designed to measure the plant effective leaf area index (Lₑ) by measuring the canopy gap fraction at several limited or discrete view zenith angles (VZAs) (usually five VZAs: 7, 23, 38, 53, and 68°) based on Miller’s equation. Miller’s equation requires the probabil ...
DOI:
10.3390/rs13071405

4. Photosynthates competition within the boll–leaf system is alleviated with the improvement of photosynthetic performance during the succession of Xinjiang cotton cultivars

Author:
Wang, Yuxuan; Chen, Minzhi; Liang, Fubin; Tian, Jingshan; Zhang, Yali; Jiang, Chuangdao; Zhang, Wangfeng
Source:
Industrial crops and products 2021 v.160 pp. 113121
ISSN:
0926-6690
Subject:
leaf area,   etc   ; Gossypium hirsutum; cotton; cultivars; leaves; photosynthates; photosynthesis; China;     Show all 8 Subjects
Abstract:
... The yield of cotton (Gossypium hirsutum L.) has increased steadily with the release of different cultivars over the years in Xinjiang, China. However, the reasons for this increased yield have been controversial. As the sympodial leaf and boll within the boll–leaf system of cotton develop together, their competition for photosynthates is intense during their growth, which may be an important facto ...
DOI:
10.1016/j.indcrop.2020.113121

5. Is the annual maximum leaf area index an important driver of water fluxes simulated by a land surface model in temperate forests?

Author:
Maheu, Audrey; Cholet, Cybèle; Cordero Montoya, Rebeca; Duchesne, Louis
Source:
Canadian journal of forest research 2021 v.51 no.4 pp. 595-603
ISSN:
1208-6037
Subject:
leaf area index,   etc   ; evapotranspiration; models; research; uncertainty; Quebec;     Show all 6 Subjects
Abstract:
... In land surface models, vegetation is often described using plant functional types (PFTs), a classification that aggregates plant species into a few groups based on similar characteristics. Within-PFT variability of these characteristics can introduce considerable uncertainty in the simulation of water fluxes in forests. Our objectives were to (i) compare the variability of the annual maximum leaf ...
DOI:
10.1139/cjfr-2020-0126

6. Allometric scaling relationships of Larix potaninii subsp. chinensis traits across topographical gradients

Author:
Zhang, Lili; Khamphilavong, Khambay; Zhu, Hengchen; Li, Hua; He, Xiaojun; Shen, Xufang; Wang, Liru; Kang, Yongxiang
Source:
Ecological indicators 2021 v.125 pp. 107492
ISSN:
1470-160X
Subject:
leaf area; specific leaf area,   etc   ; Larix; allometry; altitude; branches; climate; geometry; internode length; leaf length; leaves; phenotype; treeline; trees;     Show all 14 Subjects
Abstract:
... The variation of phenotypic traits with environmental gradient can reveal the plant adapting strategies and predict reactions to future climate changes. However, it remains elusive, especially for alpine timberline tree species. To quantify the variation and explore the patterns of twig, leaf, stoma traits, and determine the scaling relationships along the topographic gradients, 576 current-year b ...
DOI:
10.1016/j.ecolind.2021.107492

7. The importance of intraspecific trait variability in promoting functional niche dimensionality

Author:
He, Dong; Biswas, Shehkar R.; Xu, Ming‐Shan; Yang, Tong‐Hui; You, Wen‐Hui; Yan, En‐Rong
Source:
Ecography 2021 v.44 no.3 pp. 380-390
ISSN:
0906-7590
Subject:
leaf area; specific leaf area,   etc   ; covariance; functional diversity; geographical distribution; intraspecific variation; leaves; nitrogen; phosphorus; soil fertility; species richness; variance;     Show all 12 Subjects
Abstract:
... Both inter‐ and intraspecific trait variation are critical to species distribution along environmental gradients, but our understanding of these patterns predominantly relies upon species‐level trait means and variances. Trait integration, defined as how strongly multiple traits covary with one another, is a key indicator of the dimensionality of functional space for accommodating biodiversity in ...
DOI:
10.1111/ecog.05254

8. Correlations between leaf economics, hydraulic, and shade-tolerance traits among co-occurring individual trees

Author:
Abbasi, Umar Aftab; You, Wen-Hui; Yan, En-Rong
Source:
Acta oecologica 2021 v.110 pp. 103673
ISSN:
1146-609X
Subject:
leaf area; specific leaf area,   etc   ; branches; economics; factor analysis; hydraulic conductivity; leaves; nitrogen; phosphorus; plant growth; principal component analysis; shade tolerance; stomatal conductance; trees; wood; China;     Show all 16 Subjects
Abstract:
... Leaf economics, hydraulic, and shade-tolerance traits involve different resource-use strategies, and are critical for interactive plants, yet it remains unclear whether co-occurring individuals modulate the coupling relationships between these trait dimensions. To address this knowledge gap, we measured four leaf economics, five hydraulic, and two shade-tolerant traits in leaf and wood tissues acr ...
DOI:
10.1016/j.actao.2020.103673

9. Physiological and nutritional significance of potassium application under sole and intercropped maize (Zea mays L.)

Author:
Ahmed, Aftab; Mohi Ud Din, Atta; Aftab, Samina; Titriku, John Kwame; Ahmed, Shoaib; Nizamani, Muhammad; Jamali, Zameer Hussain; Tei, Xiao; Yang, Feng; Yang, Wenyu
Source:
Italian journal of agronomy 2021 v.16 no.1 pp. 1737
ISSN:
1125-4718
Subject:
leaf area; leaf area index,   etc   ; Zea mays; agronomy; biomass production; corn; forage; intercropping; photosynthesis; photosynthetically active radiation; potassium; seed yield; soil;     Show all 13 Subjects
Abstract:
... Globally, maize is an essential food and fodder crop. Fertilisers, as soil amendments, particularly K₂O, could increase maize yields. A Two-year field research was designed in 2018-2019 to examine the influence of three-potassium fertiliser applications on maize-soybean strip intercropping and sole-maize yield components. A Randomized complete block design with three replications was used, and one ...
DOI:
10.4081/ija.2021.1737

10. Effects of the morphological characteristics of plants on rainfall interception and kinetic energy

Author:
Yan, Ting; Wang, Zhenhong; Liao, Chonggang; Xu, Wanying; Wan, Li
Source:
Journal of hydrology 2021 v.592 pp. 125807
ISSN:
0022-1694
Subject:
leaf area; leaf area index,   etc   ; aquifers; canopy; forests; hydrologic cycle; kinetic energy; leaves; rain; rainfall energy; rainfall simulation; soil erosion; stemflow; throughfall; trees; trichomes; water interception; China;     Show all 18 Subjects
Abstract:
... Forests play an important role in the water cycle and in the control of soil erosion. The canopy, as the first active surface of the forest, directly affects soil erosion by redistributing rainfall. However, the effects of the plant morphological characteristics of different tree species on rainfall interception and kinetic energy reduction have not been determined. We determined 116 globally impo ...
DOI:
10.1016/j.jhydrol.2020.125807

11. Poplar protease inhibitor expression differs in an herbivore specific manner

Author:
Eberl, Franziska; Fabisch, Thomas; Luck, Katrin; Köllner, Tobias G.; Vogel, Heiko; Gershenzon, Jonathan; Unsicker, Sybille B.
Source:
BMC plant biology 2021 v.21 no.1 pp. 170
ISSN:
1471-2229
Subject:
leaf area,   etc   ; Amata; Lymantria dispar; Phratora vulgatissima; Populus nigra; herbivores; insects; transcription (genetics); trees; trypsin;     Show all 10 Subjects
Abstract:
... BACKGROUND: Protease inhibitors are defense proteins widely distributed in the plant kingdom. By reducing the activity of digestive enzymes in insect guts, they reduce the availability of nutrients and thus impair the growth and development of the attacking herbivore. One well-characterized class of protease inhibitors are Kunitz-type trypsin inhibitors (KTIs), which have been described in various ...
DOI:
10.1186/s12870-021-02936-4

12. Combining texture, color, and vegetation indices from fixed-wing UAS imagery to estimate wheat growth parameters using multivariate regression methods

Author:
Zhang, Jiayi; Qiu, Xiaolei; Wu, Yueting; Zhu, Yan; Cao, Qiang; Liu, Xiaojun; Cao, Weixing
Source:
Computers and electronics in agriculture 2021 v.185 pp. 106138
ISSN:
0168-1699
Subject:
leaf area index,   etc   ; agriculture; canopy; color; crop management; cultivars; electronics; nitrogen; regression analysis; texture; vegetation; wheat;     Show all 12 Subjects
Abstract:
... Precision crop management in modern agriculture requires timely and effective acquisition of crop growth information. Recently, unmanned aerial systems (UASs) have rapidly developed and are now widely used in crop remote sensing (RS). Vegetation index (VI) and color index (CI) are commonly used RS methods to monitor crops. Texture is intrinsic information of the images, which can reflect the crop ...
DOI:
10.1016/j.compag.2021.106138

13. Continuous estimation of leaf area index and the woody-to-total area ratio of two deciduous shrub canopies using fisheye webcams in a semiarid loessial region of China

Author:
Niu, Xiaotao; Fan, Jun; Luo, Ruihua; Fu, Wei; Yuan, Hongyou; Du, Mengge
Source:
Ecological indicators 2021 v.125 pp. 107549
ISSN:
1470-160X
Subject:
leaf area index,   etc   ; Caragana korshinskii; Salix psammophila; canopy; cost effectiveness; ecosystems; leaves; photography; shrubs; China;     Show all 10 Subjects
Abstract:
... Automatic and accurate measurements of the leaf area index (LAI) can provide information about key parameters of vegetation structure in an ecosystem. Little attention, however, has been paid to LAI dynamics for shrub canopies in both arid and semiarid regions compared to forests and crops. One of the main sources of error when measuring shrub LAI from the indirect method is the woody part. The in ...
DOI:
10.1016/j.ecolind.2021.107549

14. Uncovering reasons for differential accumulation of linalool in tea cultivars with different leaf area

Author:
Zeng, Lanting; Xiao, Yangyang; Zhou, Xiaochen; Yu, Jizhong; Jian, Guotai; Li, Jianlong; Chen, Jiaming; Tang, Jinchi; Yang, Ziyin
Source:
Food chemistry 2021 v.345 pp. 128752
ISSN:
0308-8146
Subject:
leaf area,   etc   ; correlation; cultivars; food chemistry; gene expression; information; leaves; light; linalool; metabolites; odors; tea;     Show all 12 Subjects
Abstract:
... It is generally proposed that tea cultivars with larger leaves contain more linalool, an important tea aroma contributor, than ones with smaller leaves. The objective of this study was to confirm the trait and explore the involved reason. Investigation on ten tea cultivars with different leaf areas demonstrated a significant positive correlation between linalool content and leaf area (R² = 0.739, ...
DOI:
10.1016/j.foodchem.2020.128752

15. Changing assembly rules during secondary succession: evidence for non-random patterns

Author:
Csecserits, Anikó; Halassy, Melinda; Lhotsky, Barbara; Rédei, Tamás; Somay, László; Botta-Dukát, Zoltán
Source:
Basic and applied ecology 2021 v.52 pp. 46-56
ISSN:
1439-1791
Subject:
leaf area,   etc   ; applied ecology; botanical composition; community structure; pollination; secondary succession; seed weight; time series analysis;     Show all 8 Subjects
Abstract:
... Describing the rules of community assembly is a central topic of ecology. Studying successional processes through a trait-based null model approach can help to better understand the rules of community assembly.According to theoretical considerations, at the beginning of succession - after getting over the dispersal limitation stage - community composition is primarily shaped by environmental filte ...
DOI:
10.1016/j.baae.2021.02.009

16. Leaf area index estimation of wheat crop using modified water cloud model from the time-series SAR and optical satellite data

Author:
Yadav, Vijay Pratap; Prasad, Rajendra; Bala, Ruchi
Source:
Geocarto international 2021 v.36 no.7 pp. 791-802
ISSN:
1752-0762
Subject:
leaf area index,   etc   ; models; remote sensing; synthetic aperture radar; time series analysis; vegetation; wheat; India;     Show all 8 Subjects
Abstract:
... The time-series synthetic aperture radar (SAR) and optical satellite data were used for the leaf area index (LAI) estimation of wheat crop using modified water cloud model (MWCM) in Varanasi district, India. In this study, MWCM was developed by including scale invariant vegetation fraction (fᵥₑg) in the old WCM for the estimation of LAI. The non-linear least square optimization technique was appli ...
DOI:
10.1080/10106049.2019.1624984

17. How much leaf area do insects eat? A data set of insect herbivory sampled globally with a standardized protocol

Author:
Mendes, Gisele M.; Silveira, Fernando A. O.; Oliveira, Carolina; Dáttilo, Wesley; Guevara, Roger; Ruiz‐Guerra, Betsabé; Boaventura, Maria Gabriela; Sershen,; Ramdhani, Syd; Phartyal, Shyam S.; Ribeiro, Sérvio P.; Pinto, Victor Diniz; Vasconcelos, Heraldo L.; Tito, Richard; Pereira, Cássio Cardoso; Carvalho, Bárbara; Carvalho, Gabriel M.; del‐Val, Ek; Buisson, Elise; Arruda, André J.; Toth, Jean‐Baptiste; Roque, Fabio de O.; Souza, Allan Henrique; Bolzan, Fabio; Neves, Frederico; Kuchenbecker, Juliana; Demetrio, Guilherme Ramos; Seixas, Luziene; Romero, Gustavo Q.; de Omena, Paula M.; Silva, Jhonathan O.; Paolucci, Lucas; Queiroz, Elenir; Ooi, Mark K. J.; Mills, Charlotte H.; Gerhold, Pille; Merzin, Anne; Massante, Jhonny C.; Aguilar, Ramiro; Carbone, Lucas M.; Campos, Ricardo; Gomes, Inácio; Zorzal, Gabriela; Solar, Ricardo; Ramos, Letícia; Sobrinho, Tathiana; Sanders, Pedro; Cornelissen, Tatiana
Source:
Ecology 2021 v.102 no.4 pp. e03301
ISSN:
0012-9658
Subject:
leaf area,   etc   ; biodiversity; data collection; herbivores; insects; leaves; population distribution; tropical plants; Brazil;     Show all 9 Subjects
Abstract:
... Herbivory is ubiquitous. Despite being a potential driver of plant distribution and performance, herbivory remains largely undocumented. Some early attempts have been made to review, globally, how much leaf area is removed through insect feeding. Kozlov et al., in one of the most comprehensive reviews regarding global patterns of herbivory, have compiled published studies regarding foliar removal ...
DOI:
10.1002/ecy.3301

18. Phenotypic plasticity of plant traits contributing to grain and biomass yield of dual-purpose sorghum

Author:
Ndiaye, Malick; Muller, Bertrand; Ganyo, Komla Kyky; Guissé, Aliou; Cissé, Ndiaga; Adam, Myriam
Source:
Planta 2021 v.253 no.4 pp. 82
ISSN:
0032-0935
Subject:
leaf area,   etc   ; ; biomass production; internode length; leaves; panicles; phenology; phenotypic plasticity; plant height; Senegal;     Show all 10 Subjects
Abstract:
... MAIN CONCLUSION: Plant traits of interest for sorghum breeders to develop dual-purpose varieties are stem diameter, flag leaf size, crop cycle, and number of grains per panicle. To develop dual-purpose varieties, breeders need to improve traits linked both to grain and biomass production. To identify these traits, we studied the phenotypic plasticity of eighteen traits and the performance of ten c ...
DOI:
10.1007/s00425-021-03599-z

19. Photosynthetic Physiology and Molecular Response Mechanisms of Indica–Japonica Intersubspecific Tetraploid Rice Seedlings to Ion Beams

Author:
Huang, Yaqin; Huang, Qunce; Li, Jinzhe; Yin, Yue; Jiao, Zhen
Source:
Journal of plant growth regulation 2021 v.40 no.2 pp. 722-735
ISSN:
0721-7595
Subject:
leaf area,   etc   ; chlorophyll; diploidy; gas exchange; germplasm; irradiation; photosynthesis; plant growth; rice; tetraploidy;     Show all 10 Subjects
Abstract:
... Indica–japonica intersubspecific tetraploid rice is a useful germplasm that has greater biological and yield potentials than diploid rice. However, the physiological and molecular mechanisms of the stress effects of indica–japonica intersubspecific tetraploid rice in response to ion implantation are not fully understood. In this work, indica–japonica intersubspecific tetraploid rice seeds were imp ...
DOI:
10.1007/s00344-020-10136-x

20. Comparison of indices for evaluating building green values based on greenhouse gas emission reductions

Author:
Pan, By Tze-Chin; Kao, Jehng-Jung
Source:
Ecological indicators 2021 v.122 pp. 107228
ISSN:
1470-160X
Subject:
leaf area,   etc   ; biotopes; green roofs; greenhouse gas emissions; greenhouse gases; heat tolerance;     Show all 6 Subjects
Abstract:
... The rapid increase of the amount of impervious surfaces in urban areas has generated heat islands and other adverse environmental impacts that subsequently increase greenhouse gas (GHG) emissions. Local governments are now looking for an index to encourage building owners to increase green areas, including green roofs and green walls. Currently, several building green value (BGV) indices can be us ...
DOI:
10.1016/j.ecolind.2020.107228