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Journal of Agriculture ›› 2022, Vol. 12 ›› Issue (8): 1-5.doi: 10.11923/j.issn.2095-4050.cjas2020-0269

Special Issue: 生物技术 水稻

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The Relationship Between Leaf Area Index and Yield of Rice: Research Progress

HE Mi(), LI Xiaobo, HUANG Jing, HUANG Guangfu()   

  1. Institute of Resource Plants, Yunnan University, Kunming 650091, Yunnan, China
  • Received:2020-12-10 Revised:2021-02-08 Online:2022-08-20 Published:2022-09-22
  • Contact: HUANG Guangfu E-mail:hemi@mail.ynu.edu.cn;gfhuang@ynu.edu.cn

Abstract:

Leaf, as the material basis for constructing the rice organs, is closely related to the quality of the light environment and the utilization rate of light energy. The leaf area index (LAI) is an important indicator related to rice yield, and is significantly correlated with the light and effective radiation absorption coefficient in rice canopy. In this paper, we reviewed the relationship between the LAI in different growth periods of rice and the yield, and pointed out that the optimal LAI could be increased based on variety selection and cultivation measures, to achieve the high yield. The study could provide a theoretical basis for developing a predicting system of the optimal LAI and for regulating the rational canopy structure of rice.

Key words: hybrid rice, leaf area index, optimum leaf area index, rice growth period, yield

CLC Number: