...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Medicinal Plants Research >Genetic association, divergence and variability studies for seed yield and oil content and its contributing traits in Jatropha (Jatropha curcas L.)
【24h】

Genetic association, divergence and variability studies for seed yield and oil content and its contributing traits in Jatropha (Jatropha curcas L.)

机译：麻疯树种子产量和含油量及其贡献性状的遗传关联，发散性和变异性研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Genetic association, divergence and variability were studied in 24 accessions of?Jatropha curcas?L. for seed and oil yield and its contributing traits. Based on genetic divergence D2statistics, 24 accessions were grouped into 14 clusters. Three accessions (BRS-12/05-UpA2, BRS-12/05-UpA3 and BRS-03/06-WbB) were included in cluster XI followed by clusters II, IV, VI, VII, VIII, X, XII and XIII (2 accessions in each case), whereas clusters I, III, V, IX, XIV included only 1 accession in each case. Intra and inter-cluster values ranged from 0.00 to 12.220 and 7.868 to 70.340, respectively and clusters XIV and VI were the most diverse, which could be used in hybridization programme. Phenotypic variances were higher than genotypic variances for all characters. Heritability coupled with genetic advance was higher for plant height (74.101%, 80.171), oil content (77.956%, 16.210) and fruit set (57.430%, 15.890). Substantial amount of genetic variability was noticed among the Jatropha accessions. Correlation and path coefficient analyses showed that seed yield/plant was significantly associated with fruit set whereas oil content was found to significantly correlate with plant height, stem diameter and number of branches/plant. Fruit set had the highest positive direct path followed by stem diameter towards seed yield/plant. Fruit set also indirectly contributed to seed yield/plant via plant height and stem diameter. Characters showing significant and positive correlation with seed yield and oil content can be used for genetic improvement of seed and oil yield which will ultimately enhance biodiesel productivity in?J. curcas.
机译：研究了麻疯树（麻疯树）的24个种的遗传关联，发散性和变异性。种子和油脂产量及其贡献特性。根据D2统计数据的遗传差异，将24个种质分组为14个聚类。群集XI中包含了三个登录名（BRS-12 / 05-UpA2，BRS-12 / 05-UpA3和BRS-03 / 06-WbB），其次是群集II，IV，VI，VII，VIII，X，XII和XIII （在每种情况下为2个登录），而群集I，III，V，IX，XIV在每种情况下仅包含1个登录。集群内和集群间的值分别在0.00到12.220和7.868到70.340之间，并且群集XIV和VI最多样化，可以在杂交程序中使用。对于所有字符，表型差异均高于基因型差异。植株高度（74.101％，80.171），含油量（77.956％，16.210）和坐果率（57.430％，15.890）的遗传力和遗传优势较高。在麻疯树种质中注意到大量的遗传变异。相关性和路径系数分析显示，种子产量/植物与坐果关系显着，而油含量与植物高度，茎直径和分支/植物数显着相关。坐果的正向直接途径最高，其茎径朝向种子产量/植物。坐果也通过植物高度和茎直径间接地影响种子产量/植物。与种子产量和含油量呈显着正相关的性状可用于种子和油料产量的遗传改良，从而最终提高生物柴油的生产率。库卡斯。

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