Photosynthetica 1999, 36(11):97 | DOI: 10.1023/A:1007075014774
A New Approach to Distinguishing Photosynthetic Types of Plants. A Case Study in Northeast China Transect (NECT) Platform
- 1 Institute of Resources Sciences, Beijing Normal University, Beijing, P.R., China
- 2 Laboratory of Quantitative Vegetation Ecology, Institute of Botany, The Chinese Academy of Sciences, Beijing, P.R., China
Discriminant analysis is an important method in multivariable statistic analysis to show what type an individual should belong to. Based on actual field photosynthetic value set obtained from our research platform, North East China Transect (NECT), a new approach, developed from the concept and principle of discriminant analysts, was proposed to distinguish C3 and C4 plants. Indices related to plant photosynthetic capacity measured by an LCA4 photosynthesis system were selected to build the discriminant model which is based on four related parameters: net photosynthetic rate, transpiration rate, stomatal conductance, and difference in temperature between leaf surface and atmosphere. Compared with other approaches, the present one is fast, straightforward, and efficient.
Additional key words: C3; C4; discriminant analysis method; intercellular CO2 concentration; leaf and atmosphere temperature; net photosynthetic rate; stomatal conductance; transpiration rate; water use efficiency
Published: July 1, 1999 Show citation
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