| 短季棉花黄萎病田间分布型初步研究 |
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| 引用本文： | 简桂良,马存. 短季棉花黄萎病田间分布型初步研究[J]. 棉花学报, 1995, 0(2) |
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| 作者姓名： | 简桂良 马存 |
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| 作者单位： | 中国农业科学院植物保护研究所 |
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| 摘 要： | 通过对短季棉重病田的研究表明，棉花黄萎病株在田间呈正态分布，对棉株产量影响大的重病株则呈负正态分布，而几乎绝产的枯死病株也呈负二项分布，说明危害棉花产量大的病株在田间呈聚集状态。
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| 关 键 词： | 短季棉，黄萎病，聚集分布 |
Field Distribution Pattern of Verticillium wilt of short SeasonCotton |
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| Jian Guiliang Ma CunInstitute of Plant Protection,CAAS Beijing. Field Distribution Pattern of Verticillium wilt of short SeasonCotton[J]. Cotton Science, 1995, 0(2) |
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| Authors: | Jian Guiliang Ma CunInstitute of Plant Protection CAAS Beijing |
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| Affiliation: | Jian Guiliang Ma CunInstitute of Plant Protection,CAAS Beijing 100094 |
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| Abstract: | The spatial distribution patterns of the cotton verticillium wilt(Verticillium dahlica)were meassured by the indices of aggregation intensity.The results showed the following as-pects:1)The spatial distribution patterns of the cotton Verticillium wilt was an aggregationdistribution.(2)The diseased plant of cotton Verticillium wilt was normal distribution.(3)The spatial distribution of heavy diseased plant and died plant were negative biomial distribu-tion. |
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| Keywords: | early maturity cotton Verticillium dahliea spatial distribution pattern |
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