| 干旱条件下玉米产量的主要相关性状研究 |
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| 引用本文： | 郑常祥; 杨文鹏; 舒世德,傅良中.干旱条件下玉米产量的主要相关性状研究[J].玉米科学,2002,10(Z1):059-061. |
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| 作者姓名： | 郑常祥; 杨文鹏; 舒世德 傅良中 |
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| 作者单位： | 1. 贵州省农科院旱粮所,贵阳,550006
2. 贵州省织金县农业局,552100 |
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| 摘 要： | 本文研究了在干旱条件下玉米产量的主要相关性状.结果表明,在干旱条件下,玉米产量主要与果穗性状即千粒重、穗长、穗粗有正相关,与株高也有正相关,但产量与出苗至吐丝日数为负相关.据此,作者提出了玉米杂交种抗旱的3个指标,与国际玉米小麦改良中心1994年提出的玉米5个抗旱指标一道构成了较完善的玉米抗旱指标体系。
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| 关 键 词： | 抗旱性 玉米 相关性状 逐步回归 |
| 文章编号： | 1005-0906(2002)增刊-0059-03 |
| 收稿时间： | 2001/8/18 0:00:00 |
| 修稿时间： | 2001年8月18日 |
Studies on Main Correlative Characteristics with Maize Yield under Drought Stress |
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| ZHENG Chang-xiang; YANG Wen-peng; SHU Shi-de and FU Liang-zhong.Studies on Main Correlative Characteristics with Maize Yield under Drought Stress[J].Journal of Maize Sciences,2002,10(Z1):059-061. |
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| Authors: | ZHENG Chang-xiang; YANG Wen-peng; SHU Shi-de and FU Liang-zhong |
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| Abstract: | The main correlative characteristics with maize yield under drought stress were studied.In conclusion,1000-kemel-weight,ear length,ear diameter and plant height were positively correlated with maize yield but the days from emergence of seedling to silking was negatively correlated with maize yield under drought stress.According to the results,3 indexes to judge whether maize resisted to drought stress or not were put forward.This 3 indexes with the 5 indexes of resistance to drought stress which were put forward by CIMMYT in 1994 together composed the perfecter system of indexes
of resistant to drought stress for maize. |
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| Keywords: | Resistance to drought Maize Correlative characteristics Step by step regression |
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