| 低酚棉产量、纤维品质性状的遗传分析 |
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| 引用本文： | 朱乾浩.低酚棉产量、纤维品质性状的遗传分析[J].作物学报,1994,20(5):621-628. |
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| 作者姓名： | 朱乾浩 |
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| 作者单位： | 浙江省农业科学院作物研究所，浙江杭州，310021 |
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| 摘 要： | 本文以32个低酚棉品种（系）为材料，对10个产量、纤维品质性状进行的遗传分析结果表明：低酚棉多数产量构成因素与皮棉产量为正相关，提高衣指、降低籽指虽可提高衣分和单株结铃数，但不利于增加单铃重；高产、优质的矛盾主要表现在纤维长度、比强度与衣分和单株结铃数有较强的负相关。在较大群体的基础上，通过早代的正向选
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| 关 键 词： | 低酚棉，产量构成因素，纤维品质性状，遗传分析 |
| 收稿时间： | 1992-06-04 |
| 修稿时间： | 1993-03-29 |
Genetic Analysis of Components and Fiber Quality Characters in Glandless Cotton (Gossypium hirsutum L.) |
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| Zhu Qian-hao.Genetic Analysis of Components and Fiber Quality Characters in Glandless Cotton (Gossypium hirsutum L.)[J].Acta Agronomica Sinica,1994,20(5):621-628. |
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| Authors: | Zhu Qian-hao |
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| Institution: | Crop Research Institute, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021 |
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| Abstract: | Ten characters of 32 glandless cotton genotypes were studied for genetic analysis. It was found that most yield components were positively correlated with lint yield, and main fiber quality characters, including 2.5% span fiber length, fiber strength and micronaire value, were negatively correlated with lint yield. Increasing lint index and decreasing seed index was advantageous to in-crease lint percentage and boll number per plant, and detrimental to boll weight. It was suggseted that when seed index was stabilitated by positive selection in early generation, and lint index was selectived positively in high generation on a larger breeding population basis, not only lint percentage, boll weight and boll number per plant would be increased simultaneously, but also the fiber quality charaters would be improved. It was also found that genetic basis of glandless cotton was norrow, therefore, new germplasms of glandless cotton should be created and superior characters of gland cotton should be introduced into glandless cotton in order to breed glandless cotton genotypes with high lint yield and good fiber quality. |
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| Keywords: | Glandless cotton Yield component Fiber quality Genetic analysis |
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