安徽农业科学2011，Vol.39Issue(9)：5128-5129,2.
植物生长调节剂对中稻新两优6号光合速率的影响
Effect of Plant Growth Regulator on Photosynthetic Rate of Middle-season Rice New Liangyou No. 6
摘要
Abstract
[ Objective] The research aimed to study the effect of the plant growth regulators on the photosynthetic rate of rice, in order to the raise the photosynthetic rate of rice flag leaf for the leaf senescence-delaying. [ Method] The different plant growth regulators were sprayed on rice leaves in booting and heading stages, then determined the net photosynthetic rate, leaf area index and chlorophyll content at grains-filling stage and after 6 and 12 days. [ Result] The results showed that the different plant growth regulators had various affecting on he photosynthetic physiology of rice flag leaves. 50 mg/L NAA-Na, 20 mg/L IAA, 30 mg/L GA3, 10 mg/L 6-BA and 2.1 ml/L Meizhouxing spraying in booting and heading stages could improve the photosynthetic rate of rice flag leaf, effectively delayed the leaf senescence. But 20％ triadimefon and 3 g/L KH2PO4 + 17 g/L Urea spraying in booting and heading stages could reduce the photosynthetic rate of rice flag leaf. [ Conclusion]The study indicated that the suitable treatment of the plant growth regulator( such as NAA-Na, IAA, GA3 or 6-BA) can improve the photosynthetic capacity and delay the leaf senescence, is goof for the realization of high and stable yield.关键词
水稻/植物生长调节剂/净光合速率/叶面积指数/叶绿素含量Key words
Rice/Plant growth regulator/Net photosynthetic rate/Leaf area index/Chlorophyll content分类
农业科技引用本文复制引用
郑乐娅,阎川,张玉海,吴文革,陈周前,许有尊..植物生长调节剂对中稻新两优6号光合速率的影响[J].安徽农业科学,2011,39(9):5128-5129,2.基金项目
国家科技支撑项目(2006BAD02A06-18,2006BAD01A01-5). （2006BAD02A06-18,2006BAD01A01-5）
