| 刘莉1*,陈燕2*,王升正1,叶玉霞2,李莎1,郭天凤2，马野平2,李家胜2,简桂良1*,齐放军1*.棉花品种抗早衰特性比较和评价[J].植物保护,2011,37(2):107-111. |
| 棉花品种抗早衰特性比较和评价 |
| Comparison and evaluation of cotton varieties resistant to premature aging |
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| DOI： |
| 中文关键词: 棉花品种 早衰特性 消长规律 |
| 英文关键词:cotton varieties premature aging characteristics dynamic development process |
| 基金项目: |
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| 中文摘要: |
| 比较和研究了我国新疆棉区及黄河长江流域棉区98个不同棉花品种和品系的抗早衰特性及早衰发生的动态消长规律。结果发现，不同棉花品种抗早衰特性存在着明显的差异，抗早衰、中抗早衰、感早衰、极感早衰品种分别占所试品种3.06%、18.37%、60.20%和18.37%。该结果大致反映了目前我国各棉区大多主栽品种抗早衰遗传基础差。早衰发生的动态消长规律研究结果显示棉花早衰具有普发、暴发和不可逆的特点。基于早衰对我国目前棉花生产危害状况，就有关防治策略和措施进行了探讨。 |
| 英文摘要: |
| The characteristics of anti premature aging and dynamic development process of the premature aging for 98 different cotton varieties planted in Yellow River，Yangtze River and in Xinjiang cotton region were studi ed. The results showed that the characteristics of different cotton varieties were significantly different in resistance to premature aging. The varieties resistant, moderately resistant, or sensitive, or extremely sensitive to premature aging accounted for 3.06%, 18.37%, 60.20% and 18.37% of the tested varieties, respectively. These results indicated that the majority of cotton cultivars planted in China were poor in genetic basis for resistance to premature aging. The results showed that the dynamic development process for the cotton premature aging was characterized by widespreading, outbreak and irreversibility. The strategies and tactics focusing on prevention and control of cotton premature aging were also discussed. |
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