摘要
1982～1986年,通过分析扬麦4号不同群体条件下单位叶面积负荷量(粒数/cm^2叶)对开花后干物质生产与运转的影响,表明随着单位叶面积负荷量的增加、叶片光合生产潜力可以进一步发挥,光合产物有效性提高,单位叶面积的有效生产量扩大;由于库容对源的反馈调节作用,单位叶面积能够满足扩大了的库容的需要。因此,在适宜叶面积基础上提高单位叶面积负荷量可以实现高产。
By analysing the relation of unit-leaf-area load (grains per cm_2 leaf)to the production and distribution of dry matter after anthesis in different populations of wheat Yangmai No.4, it was clear that the photosynthetic potential could be fully played and the effectiveness of photosynthate could be raised with the increase of unit-leaf-area load, which resulted in the rising of effective production per unit leaf area. Leaf could meet the demand of enlarged sink capacity for photosynthate. On the basis of optical leaf area of population, increasing unit-leaf-area load was beneficial to higher yield.
出处
《江苏农学院学报》
CSCD
1991年第2期25-29,共5页
Jiangsu Agricultural Research
关键词
小麦
叶面积
负荷量
粒数
Wheat, Load per unit leaf area,Grain-lcaf-arca ratio
