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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gitelson, Anatoly A. Peng, Yi Viña, Andrés Arkebauer, Timothy Schepers, James S. |
| Description | Author Affiliation: Gitelson AA ( Israel Institute of Technology, Haifa, Israel); Peng Y ( School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, China.); Viña A ( Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, East Lansing MI 48823, USA); Arkebauer T ( Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.); Schepers JS ( Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.) |
| Abstract | One of the main factors affecting vegetation productivity is absorbed light, which is largely governed by chlorophyll. In this paper, we introduce the concept of chlorophyll efficiency, representing the amount of gross primary production per unit of canopy chlorophyll content (Chl) and incident PAR. We analyzed chlorophyll efficiency in two contrasting crops (soybean and maize). Given that they have different photosynthetic pathways (C3 vs. C4), leaf structures (dicot vs. monocot) and canopy architectures (a heliotrophic leaf angle distribution vs. a spherical leaf angle distribution), they cover a large spectrum of biophysical conditions. Our results show that chlorophyll efficiency in primary productivity is highly variable and responds to various physiological and phenological conditions, and water availability. Since Chl is accessible through non-destructive, remotely sensed techniques, the use of chlorophyll efficiency for modeling and monitoring plant optimization patterns is practical at different scales (e.g., leaf, canopy) and under widely-varying environmental conditions. Through this analysis, we directly related a functional characteristic, gross primary production with a structural characteristic, canopy chlorophyll content. Understanding the efficiency of the structural characteristic is of great interest as it allows explaining functional components of the plant system. |
| File Format | HTM / HTML |
| ISSN | 01761617 |
| Journal | Journal of Plant Physiology |
| Volume Number | 201 |
| e-ISSN | 16181328 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-08-20 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Botany |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Plant Science Agronomy and Crop Science |
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