Diallel analysis of selected yield-contributing traits in Okra [Abelmoschus esculentus (L.) Moench]

Q3 Agricultural and Biological Sciences

Advances in horticultural science Pub Date : 2022-03-10 DOI:10.36253/ahsc-12574

Chriatian Okechukwu Anyaoha, O. Oyetunde, O. Oguntolu

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Abstract

Information on gene action controlling quantitative traits is important for effective selection. A five-parent diallel cross, which generated 10 F1 hybrids of okra (Abelmoscus esculentus) were evaluated during the early and late planting seasons of 2019 in Ibadan, Nigeria. Data obtained were subjected to diallel analysis and genotype by yield-trait (GYT) biplot analysis to estimate combining ability effects and identify stable hybrids for measured traits respectively. Genotype mean squares were significant (p≤0.01) for all most measured traits. Furthermore, General Combining Ability (GCA) and Specific Combining Ability (SCA) mean squares were significant (p≤0.05/0.01) for most measured traits, indicating the influence of additive and non-additive gene actions in expression of these traits. Preponderance of non-additive gene effects shows the high influence of the environment on most of the considered traits in this study. Iwo Nla had the most desirable GCA estimates of -0.98 and 1.14, for days to 50% flowering (DTF), number of fruits per plant (NoF) respectively while IK11 had the most desirable GCA values for mature-fruit width (0.21) and 1000-seed weight (5.71). SCA estimates were most desirable for NH47-4 × LD88, NH47-4 × Iwo Nla, with values of -4.21 and 4.32 for DTF and NoF respectively. Hybrids NH47-4 × Iwo Nla and IK11 × Clemson associated with higher NoF x trait might be useful for improvement of number of fruits per plant in this population.

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秋葵产量贡献性状的双列杂交分析

控制数量性状的基因作用信息对于有效选择是重要的。在2019年尼日利亚伊巴丹的早、晚种植季节，对一个产生10个秋葵F1杂交种（Abelmoscus esculentus）的五亲本双列杂交进行了评估。对所获得的数据进行双列杂交分析和产量性状基因型（GYT）双位点分析，以估计配合力效应，并分别为所测性状鉴定稳定的杂交种。基因型均方对于所有大多数测量的性状都是显著的（p≤0.01）。此外，一般配合力（GCA）和特异配合力（SCA）均方在大多数测定性状中均显著（p≤0.05/0.01），表明加性和非加性基因作用对这些性状表达的影响。非加性基因效应的优势表明，环境对本研究中考虑的大多数性状都有很大的影响。Iwo-Nla在50%开花天数（DTF）和单株果实数（NoF）方面的GCA估计值分别为-0.98和1.14，而IK11在成熟果实宽度（0.21）和1000粒种子重量（5.71）方面的GC A估计值最理想。NH47-4×Iwo-Nla和IK11×Clemson与较高的NOFx性状相关的杂交种可能有助于提高该群体的单株果实数。

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来源期刊

Advances in horticultural science Agricultural and Biological Sciences-Horticulture

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Advances in Horticultural Science aims to provide a forum for original investigations in horticulture, viticulture and oliviculture. The journal publishes fully refereed papers which cover applied and theoretical approaches to the most recent studies of all areas of horticulture - fruit growing, vegetable growing, viticulture, floriculture, medicinal plants, ornamental gardening, garden and landscape architecture, in temperate, subtropical and tropical regions. Papers on horticultural aspects of agronomic, breeding, biotechnology, entomology, irrigation and plant stress physiology, plant nutrition, plant protection, plant pathology, and pre and post harvest physiology, are also welcomed. The journal scope is the promotion of a sustainable increase of the quantity and quality of horticultural products and the transfer of the new knowledge in the field. Papers should report original research, should be methodologically sound and of relevance to the international scientific community. AHS publishes three types of manuscripts: Full-length - short note - review papers. Papers are published in English.