芝麻花期叶片光合产物的运输分配及对产量的影响  

The effect on yield and transportation-distribution orientation of photosynthetic product of sesame leaf

作　　者：王晓玲[1] 汤百高 顾正清[1] 石玲燕[1] 

机构地区：[1]长江大学农学院,湖北荆州434025 [2]荆州市岑河原种场,湖北荆州434000

出　　处：《中国油料作物学报》2006年第4期444-447,共4页Chinese Journal of Oil Crop Sciences

基　　金：长江大学资助课题(04Z1105)

摘　　要：在芝麻有效开花结蒴期,对当天见花节位进行不同比例、不同部位剪叶处理,以不剪叶和全剪叶植株为对照,研究了留叶部位功能叶光合产物的运输分配方向及在不同剪叶部位籽粒中的积累。结果表明:芝麻籽粒产量全部来源于开花后功能叶的光合产物,剪叶比例越高减产越明显。叶片光合产物的运输分配量的大小顺序为:向同侧蒴果分配最多,侧向分配次之,横向运输分配极少。Experiments were designed to investigate the effect of defoliation on photosynthetic product distribution and yield of sesame by cutting leaves in different ratio and directions （ from no - defoliation to full defoliation） of the blooming nodes. The results showed that the yield of sesame seeds was formed from the photosynthetic product produced by the functional leaves after flowering and yield reduction increased with the extent of defoliation. The partition and transportation of the photosynthetic product of the functional leaves to capsules were also analyzed.

关 键 词：芝麻 剪叶 光合产物 分配方向 产量 

分 类 号：S565.301[农业科学—作物学]