Variation in Leaf Nitrogen and Phosphorus Stoichiometry in Different Functional Groups of Legumes

DOI: 10.18805/LR-502    | Article Id: LR-502 | Page : 524-529
Citation :- Variation in Leaf Nitrogen and Phosphorus Stoichiometry in Different Functional Groups of Legumes.Legume Research-An International Journal.2020.(43):524-529
Z.Y. Shi, S.X. Xu, S.C. Lu, M. Yang, M.G. Zhang, Y.J. Li, X.G. Wang, X.N. Chen shizy1116@126.com
Address : College of Agricultural, Henan University of Science and Technology, Luoyang 471003, China.
Submitted Date : 28-05-2019
Accepted Date : 8-01-2020

Abstract

The legume is notable owing to their symbiotic nitrogen (N) fixing ability. Usually, higher leaf N concentration and N to phosphorus (P) ratio (N:P) in legumes than non-legumes. However, the variations of leaf N, P and N:P and their relationship had been hardly studied based on functional groups. In this study, we studied the leaf N, P and N:P and their relationship among different functional groups. The results showed that the average values of leaf N, P and N:P ratios for all legumes were 27.33 mg g-1, 1.27 mg g-1 and 21.94, respectively. Leaf N (36.96 mg g-1) and P (2.15 mg g-1) of herbaceous legumes are significantly higher than N (24.97 mg g-1) and P (1.18 mg g-1) in woody plants, respectively. Moreover, leaf N, P and N:P of shrub markedly higher than them in tree. Leaf N and P are always higher in deciduous than evergreen legumes. A negative correlation was found between leaf N:P and P in overall and different functional groups of legumes.

Keywords

Functional groups Leaf N Leaf N:P Leaf P Leaf stoichiometry Legumes

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