| 摘要: |
| 遗传分析表明:2.5%跨长、整齐度、比强度、从播种到初花天数的加性效应显著;伸长率、麦克隆值、从播种到初絮天数,除加性效应显著外,有的显性效应也显著。二个生育期,2.5%跨长、比强度的 h2较高,整齐度和伸长率中等,麦克隆值较低。两个生育期间;两个生育期与多数纤维性状间以及2.5%跨长与比强度、伸长率间均呈正相关。麦克隆值与整齐度间以及它们与2.5%跨长、比强度间均呈负相关。伸长率对比强度的相对贡献最大。通过伸长率来选择2.5%跨长和比强度有较好的效果。 |
| 关键词: 陆地棉 早熟性 纤维品质性状 遗传分析 |
| DOI： |
| 投稿时间：1994-03-14 |
| 基金项目: |
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| Genetic Analysis of Earliness and Fiber Properties in Upland Cotton |
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| Abstract: |
| The genetic analysis indicated that the additive gene effect was significant for 2.5% span lengty,uniformity,strength and days from sowing to first blooming.The elongation,micronaire and days from sowing to first boll opening,except additive gene effect was significant,and dominance effect was al- so significant in some crosses.The period of the first blooming and boll opening,2.5% span length. strength have hing heritability;whereas uniformity,elongation and micronaire have medium to low heri- tability,res... |
| Key words: upland cotton earliness fiber properties genetic analysis |
