| 棉花杂交种F1、F2纤维品质性状比较研究 |
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| 引用本文： | 陈金湘,李瑞莲,陈步阳,刘海荷.棉花杂交种F1、F2纤维品质性状比较研究[J].棉花学报,2004,16(6):338-342. |
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| 作者姓名： | 陈金湘 李瑞莲 陈步阳 刘海荷 |
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| 作者单位： | 1. 湖南农业大学棉花研究所,长沙,410128
2. 湖南省经济作物研究发展中心 |
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| 基金项目： | 国家863项目(2003AA2410918) |
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| 摘 要： | 2001-2003年,通过田间试验、定位取样、分株收花、分别检测了杂交棉农杂62F1、F2的主要纤维品质指标。结果分析表明,F1、F2的纤维品质性状均为分离世代,F1、F2纤维长度、比强度、整齐度、麦克隆值、伸长率等品质指标群体平均数趋于一致,群体内个体纤维指标变异均呈正态分布,但峰值和偏斜度差异明显,F1群体中品质较优的个体显著多于F2。F2纤维的整体品质比F1差。
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| 关 键 词： | 杂交棉 纤维品质 |
| 文章编号： | 1002-7807(2004)06-0338-05 |
| 修稿时间： | 2004年5月20日 |
Study on Fiber Characteristics of F1 and F2 Hybrid Cotton |
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| CHEN Jin-xiang,LI Rui-lian,CHEN Bu-yang,LIU Hai-he.Study on Fiber Characteristics of F1 and F2 Hybrid Cotton[J].Cotton Science,2004,16(6):338-342. |
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| Authors: | CHEN Jin-xiang LI Rui-lian CHEN Bu-yang LIU Hai-he |
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| Institution: | CHEN Jin-xiang~1,LI Rui-lian~1,CHEN Bu-yang~2,LIU Hai-he~1 |
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| Abstract: | The utilization of hybrid vigor in cotton by planting first-generation hybrids (F_1) has been extended in cotton production. However, there are disagreements about the utilization of second-generation hybrids (F_2).Compared with F_1 , the lint yield of F_2 was lower, but still higher than that of the conventional varieties and their parents.Thus F_2 has been grow extensively in the southern cotton planting region in China.Nevertheless, the decline of fiber qualities attracts more and more attention in cotton production. The study was conducted to compare with fiber characteristics of F_1 and F_2 from 2001 to 2003. F_1 and F_2 of Nongza 62 were planted in the experimentation station of Hunan Agricultural University in Nan xian County. The results showed that the sample means of F_1 and F_2 fiber properties, such as staple length, fiber strength, uniformity of fiber length, fiber fineness(micronaire),fiber elongation and fiber spinning uniformity indexes were not significantly different. But the values of these characteristics varied among individuals within the F_1 and F_2 population.The distribution of each fiber parameters in the values accorded with the same standard normal curve.There were more plants that have better fiber quatily in F_1 populations than in F_2 , so the integer fiber quality of F_1 was a little better than that of F_2 . |
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| Keywords: | hybrid cotton fiber property |
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