摘要
研究了超级稻培矮 6 4 s/ E32和常规稻浙农 952开花后剑叶衰老、光合速率及产量形成的关系 .结果表明 :水稻开花后 ,剑叶内光合速率和 Rubisco活力明显下降 ,并与叶绿素和蛋白质含量降低呈正相关 ;与此同时 SOD活性降低 ,MDA含量上升 .与常规稻浙农 952相比 ,超级稻生育后期衰老快 ,导致剑叶光合速率迅速降低 ,影响籽粒充实度 .因此 ,有效控制或延缓超级稻衰老 。
Flag leaf senescence of super highyield rice—Peiai 64s/E32 and conventional rice Zhenong 952 after heading was studied with soil culture The results indicate that photosynthetic rate decreased in the flag leaf after flowering There is close relation between photosynthetic rate and content of chlorophyll in the flag leaf In the meanwhile, the activities of superoxide dismutase(SOD) decreased and the content of malondialdehyde (MDA) increased Comparing with Zhenong 952, the senescence of flag leaf was speeded up during late growing period of Peiai 64s/E32
出处
《浙江大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2001年第2期169-172,共4页
Journal of Zhejiang University:Agriculture and Life Sciences
基金
国家自然科学基金资助项目! ( 39970 44 0 )
