| 不同播期和不同肥力条件下向日葵干物质形成和物质分配对杂交种产量的影响 |
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| 引用本文： | 崔良基,董钻,梁国战,王德兴.不同播期和不同肥力条件下向日葵干物质形成和物质分配对杂交种产量的影响[J].杂粮作物,2002,22(5):280-284. |
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| 作者姓名： | 崔良基 董钻 梁国战 王德兴 |
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| 作者单位： | 1. 辽宁省农业科学院,作物研究所,辽宁,沈阳,110161
2. 沈阳农业大学,农学院,辽宁,沈阳,110161 |
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| 摘 要： | 不同的播期明显影响向日葵籽实产量及病害发生的程度。通过调整播期，可防止或减轻叶部斑病和菌核病的发生，在向日葵生产上起着很大作用。向日葵不同品种干物质积累规律符合Logistic生长曲线，可用方程y=k/(1 ae^-bx）模拟。向日葵植株的器官平衡依次为：除空壳外，茎秆（28.5%)、籽实（24.5%)、叶片（22.5%)、葵盘（17.3%)、叶柄（4.9%)。土壤肥力对向日葵的器官平衡有较大影响。经济系数不高是向日葵的一个特点。栽培条件不同，经济系数差异较大。在一般情况下，春播条件下经济系数较高，夏播条件下经济系数较低。
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| 关 键 词： | 杂交种产量 向日葵 播期 肥力 干物质形成 干物质分配 经济系数 |
| 文章编号： | 1003-4803(2002)05-0280-05 |
| 修稿时间： | 2001年12月19 |
Effect of Dry Matter Formation and Matter Partition on Yield of Sunflower Hybrids under Different Seeding Time and Fertility |
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| CUI Liang-ji ,DONG Zuan ,LIANG Guo-zhan ,WANG De-xing.Effect of Dry Matter Formation and Matter Partition on Yield of Sunflower Hybrids under Different Seeding Time and Fertility[J].Rain Fed Crops,2002,22(5):280-284. |
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| Authors: | CUI Liang-ji DONG Zuan LIANG Guo-zhan WANG De-xing |
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| Institution: | CUI Liang-ji 1,DONG Zuan 2,LIANG Guo-zhan 1,WANG De-xing 1 |
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| Abstract: | Grain yield and occurance degree of disease in sunflower were obviously effected by seeding time. Leaf spot and sclerotium of sunflower were controlled with adjusting seeding time. Dry matter accumulation law of different sunflower hybrids conformed to Logistic growth curve; and was initated by y=k/(1+ae -bx)The organ balance of sunflower plants from big to small was culm (28.5%),grain (24.5%), leaves (22.5%), sunflower disc (17.3%), petiole (4.9%). The fertility of soil had a great influence on organ balance of sunflower. The economic coefficient was not high for sunflower and variant in response to cultural conditions. In general, the econonic coefficient for spring seeding was higher than that for summer seeding. |
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| Keywords: | sunflower seeding time fertility yield |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
