• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Cotton Reseach Journal >Study of Heritability, Correlation and Path Coefficient Analysis Among Yield Components in Cotton Hybrids [Gossypium hirsutum L.)
【24h】

Study of Heritability, Correlation and Path Coefficient Analysis Among Yield Components in Cotton Hybrids [Gossypium hirsutum L.)

机译：棉花杂交种产量构成要素间遗传力，相关性和通径分析的研究

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Forty three Bt cotton hybrids along with two checks were evaluated in a randomized complete block design with three replications to assess the correlation and causation among different characters related to seed cotton yield. The information on phenotypic andgenotypic coefficients of variability, heritability, genetic advance, associations and path coefficients for seed cotton yield and component traits was computed. The estimates of phenotypic coefficient of variability (PCVj were high (>20%) for boll number, monopods per plant, sympods per plant, plant height and lint yield. The low genotypic coefficient of variability (GCV) for plant height indicated more influence of environment and conseguently this trait showed low heritability and genetic advance. All other traits showed high heritability and genetic advance. In general .phenotypic and genotypic correlations between different characters were in agreement with each other. Significant positive association of seed cotton yield was observed withboll number, boll weight, sympods per plant and lint yield. Boll number, sympods per plant and lint yield also showed positive association among themselves. The ginning out-turn showed positive correlation with boll number, sympods per plant and lint yield but negative association with seed index. Partitioning of phenotypic correlation coefficients of various component characters with seed cotton yield into direct and indirect contributions revealed that boll number followed by boll weight had maximumdirect effects upon seed cotton yield. Though, sympods per plant made little direct contribution to seed cotton yield but made sufficient indirect contribution via boll number. The contribution of traits like monopods per plant, plant height and ginningout turn was negligible. It is concluded that seed cotton yield may be improved by selection of plants having more sympods with high boll number and boll weight.
机译：在随机完整区组设计中评估了43个Bt棉花杂交品种，并进行了两次重复评估，以评估与籽棉产量相关的不同性状之间的相关性和因果关系。计算了表型和基因型的变异性，遗传性，遗传进展，种子棉产量和组成性状的相关性和通径系数的信息。棉铃数，单株单株，单株单株，株高和皮棉产量的表型变异系数（PCVj高（> 20％））估计值低，表明株高的基因型变异系数（GCV）低因此，该性状表现出较低的遗传力和遗传优势;所有其他性状均表现出较高的遗传力和遗传优势;一般而言，不同性状之间的表型和基因型相关性相互吻合，观察到籽棉产量与铃数显着正相关。 ，铃重，单株结荚和皮棉产量之间的铃数，单株结荚和皮棉产量之间也呈正相关，轧花结实与铃数，单株和皮棉产量呈正相关，而与种子负相关棉花籽棉产量不同构成性状的表型相关系数划分。直接和间接作用的结果表明，铃数和铃重对种子棉产量有最大的直接影响。虽然，每株植物的荚果对种子棉的产量几乎没有直接贡献，但通过铃铃数却产生了足够的间接贡献。单株独脚架，株高和轧花转向等性状的贡献可忽略不计。可以得出结论，选择具有更多铃兰数和铃铃重的更多掌形植物可以提高籽棉产量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号