Abstract

The present investigation deals with the genetic divergence, correlation, and path coefficient study for the six characters among sixty-two accessions of Ammi visnaga L. grown during two consecutive years, 2018-2019 and 2019-2020, in India. Morphological variability was detected for stem and umbel color from center reddish to pink during vegetative growth. In this study, high genetic co-variance (GCV) and high heritability with maximum genetic advance (GA), and high mean percentage were noticed for biological yield and harvest index and seed yield. These auspicious traits would possibly be governed by additive gene effects, which could help select the best genotypes using an appropriate breeding strategy for crop improvement. The highest positive and significant genotypic and phenotypic correlation coefficient was recorded for the number of umbels correlated between biological yields and seed yield. On the other hand, the path coefficient study revealed that the harvest index has the maximum direct contribution followed by biological yield, number of primary branches, and umbels on the seed yield. Results clearly showed variation in important economic traits could facilitate selection for further genetic improvement in A. visnaga genotypes. In this study, several unique accessions were identified that might be exciting genotypes for the genetic modification of the different morphometric characters in the hybridization program. The accession no. AV-45 was having the highest carotol (66.1 %), followed by AV-7 carotol (66.0 %). Therefore, these accessions can be further exploited for commercial production.

摘要

本研究旨在研究六十二种Ammi visnaga品种中六个字符的遗传差异，相关性和路径系数研究。L.在印度连续两年（2018-2019年和2019-2020年）生长。营养生长期间，茎和伞形颜色从中心带红色变为粉红色，形态上存在变异。在这项研究中，生物产量，收获指数和种子产量均注意到高遗传协方差（GCV）和高遗传力以及最大遗传进展（GA），以及高平均百分率。这些吉利性状可能受累加基因效应的控制，这可以通过使用适当的育种策略来改良作物来帮助选择最佳基因型。对于生物学产量和种子产量之间相关的伞形伞数量，记录了最高的正向和显着的基因型和表型相关系数。另一方面，路径系数研究表明，收获指数对种子产量具有最大的直接贡献，其次是生物产量，主要分支数量和伞形花序。结果清楚地表明，重要经济性状的变异可能有助于选择以进一步改良玉米的遗传。A. visnaga基因型。在这项研究中，鉴定了几种独特的种质，它们可能是在杂交程序中对不同形态特征进行遗传修饰的令人兴奋的基因型。登记号 AV-45的胡萝卜素含量最高（66.1％），其次是AV-7的胡萝卜素（66.0％）。因此，这些种质可进一步用于商业生产。