[Comprehensive evaluation on the effect of chemical regulation agent on rice injured by insufficient illumination during its heading-filling period].
Main indexes of rice injury by insufficient illumination (II) were selected through Gray Relation, and the effect of regulation agent on rice injured by II at different stages during heading-filling period was analyzed using Gradation Analysis and Fuzzy Comprehensive Evaluation. The results showed that the percentage of filled-grain, net assimilation rate and root activity were the top three indexes subject to injury. Application of chemical regulation agent when the injury occurred 6-20 days after heading had the best effect, with a degree of subordinacy of 0.7869.
Wei
C
C
Agronomy Department, Anhui Agricultural University, Hefei 230036.
Liu
M
M
Li
L
L
D016573:Agrochemicals / Q000494:pharmacology*; D005069:Evaluation Studies as Topic; D008027:Light; D012275:Oryza / Q000187:drug effects* / Q000502:physiology / Q000528:radiation effects
D016573:Agrochemicals