化学调控剂对减轻水稻抽穗灌浆期阴害效应的综合评判  

Comprehensive evaluation on the effect of chemical regulation agent on rice injured by insufficient illumination during its heading filling period.

作　　者：韦朝领[1] 刘敏华[1] 李林[2] 

机构地区：[1]安徽农业大学农学系,合肥230036 [2]江苏农业科学院现代化研究所,南京210014

出　　处：《应用生态学报》2001年第1期55-58,共4页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金资助项目!(39470 4 0 7)

摘　　要：应用灰色关联选择受阴害水稻的主要受害指标 ,以层次分析法和模糊综合评判分析了化学调控剂对减轻水稻在抽穗灌浆期不同时段阴害的效应 .结果表明 ,阴害危害的最大 3个指标为结实率、净同化率和根系活性强度 ;在水稻抽穗后 6～ 2 0d出现阴害时 ,喷施化学调控剂的增产效果最明显 ,隶属度达 0 .786 9.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 occured 6～20 days after heading had the best effect,with a degree of subordinacy of 0 7869.

关 键 词：化学调控剂 水稻 阴害效应 抽穗灌浆 综合评判 

分 类 号：Q946[生物学—植物学]