| 小麦单位叶面积负荷量对开花后源的调节效应 |
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| 引用本文： | 郭文善,彭永欣,严六零,封超年. 小麦单位叶面积负荷量对开花后源的调节效应[J]. 扬州大学学报(农业与生命科学版), 1991, 0(2) |
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| 作者姓名： | 郭文善 彭永欣 严六零 封超年 |
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| 作者单位： | Dept，of Agron.，Jiangsu Agric.，Coll.，Yangzhou 225001 |
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| 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。
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| 关 键 词： | 小麦 叶面积 负荷量 粒数/cm~2叶 |
REGULATION OF UNIT-LEAF-AREA LOAD ON SOURCE ACTIVITY IN WHEAT |
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| GUO Wen-shan PENG Yong-xin YAN Liu-ling FENG Chao-nian. REGULATION OF UNIT-LEAF-AREA LOAD ON SOURCE ACTIVITY IN WHEAT[J]. Journal of Yangzhou University(Agricultural and Life Science Edition), 1991, 0(2) |
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| Authors: | GUO Wen-shan PENG Yong-xin YAN Liu-ling FENG Chao-nian |
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| Abstract: | 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. |
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| Keywords: | Wheat Load per unit leaf area Grain-lcaf-arca ratio |
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