| 抽雄期水分胁迫对玉米籽粒产量及其果穗性状的影响 |
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| 引用本文： | 赵天宏,沈秀瑛,杨德光.抽雄期水分胁迫对玉米籽粒产量及其果穗性状的影响[J].辽宁农业科学,2002(6):5-7. |
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| 作者姓名： | 赵天宏 沈秀瑛 杨德光 |
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| 作者单位： | 沈阳农业大学农学院,辽宁,沈阳,110161 |
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| 基金项目： | 国家农业部重点课题(95170102) |
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| 摘 要： | 以不同抗旱性玉米品种为试材，在不同强度水分胁迫下，玉米穗粒数的减少是抽雄开花期产量降低的主要限制因子，而秃尖增长和行粒数减少是穗粒数降低的主要因素。说明干旱导致雌穗发育受阻，花期不遇，籽粒败育率增加，抗旱性强的品种维持产量的能力较强。
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| 关 键 词： | 抽雄期 水分胁迫 玉米 籽粒产量 果穗性状 |
| 文章编号： | 1002-1728(2002)06-0005-03 |
| 修稿时间： | 2002年7月15日 |
Effect of Water Stress on Maize Kernel Yield and Ear Characteristics During Tasselling Stage |
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| ZHAO Tian hong,SHEN Xiu ying,YANG De guang.Effect of Water Stress on Maize Kernel Yield and Ear Characteristics During Tasselling Stage[J].Liaoning Agricultural Sciences,2002(6):5-7. |
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| Authors: | ZHAO Tian hong SHEN Xiu ying YANG De guang |
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| Abstract: | A study on maize kernel yield and ear characteristics under diverse water stress was dealt with different drought resistant maize cultivars. The declination in the kernels yield under water stress at tasselling stage was mainly resulted in the reduction of kernel numbers per ear which increase of bald tip and reduction of grain numbers per row caused. It showed that drought resulted in unencountering of flowering phase and increase of abortive kernels. The drought resistant cultivar can maintain higher yield. |
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| Keywords: | maize water stress tasselling stage kernel yield ear characteristics |
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