| 玉米穗粒数和千粒重与产量的关系 |
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| 引用本文： | 高学曾,王忠孝. 玉米穗粒数和千粒重与产量的关系[J]. 山东农业科学, 1989, 0(2): 4-7 |
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| 作者姓名： | 高学曾 王忠孝 |
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| 作者单位： | 不详 |
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| 摘 要： | 研究结果表明,穗粒数与千粒重比较,前者是一项易变的因素,并对产量的影响更大些.抽丝到抽丝后14天是决定穗粒数的关键时期,而抽丝到抽丝后24天中改善营养对千粒重较重要,加强抽丝到抽丝后24天的管理可增加产量.育种上可以把粒重较高、穗粒数稳定作为高产品种的选择指标.
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| 关 键 词： | 玉米 产量 穗粒数 千粒重 |
RELATIONSHIP BETWEEN YIELD AND GRAIN NUMBER PER EAR AND 1000-GRAIN WEIGHT OF MAIZE |
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| Abstract: | The results showed that the grain number per ear was a more changeable factor than 1000-grain weight. In comparison with 1000-grain weight,the grain number per ear made a greater contribution to yield. The key stage for grain number was from silking to 14 days after silking. Improve nutrition during a period from silking to 24 days after silking had greater importance to increase 1000-grain weight. Therefore,it would increase yield to enhance management in this period. Steady grain number and higher grain weight could be selected as characters of high-yield varieties. |
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| Keywords: | Maize Yield Number per ear 1000-grain weight |
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