Performance of potential parents for a rainfed tropical wheat breeding program

IF 1.3 4区农林科学 Q3 AGRONOMY

Crop Breeding and Applied Biotechnology Pub Date : 2023-01-01 DOI:10.1590/1984-70332023v23n3a29

Camila Helena Teixeira, Maiara Oliveira Fernandes, Alan Diego do Rosário Chaves, Brena Kelly da Silva Almeida, Giovane Bruno Savioli, Fábio Aurélio Dias Martins, José Padua, Aurinelza Batista Teixeira Condé, Jose Airton Rodrigues Nunes

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引用次数: 0

Abstract

Abstract The aim of this study was to evaluate the genetic variability and performance of the agronomic traits of wheat cultivars in the southern region of Minas Gerais for the purpose of choosing parents for a rainfed wheat breeding program. We evaluated 78 wheat cultivars in two locations in Minas Gerais regarding different agronomic traits. The statistical analyses were carried out using Henderson’s mixed-model approach. The genetic values of the cultivars were predicted, and the heritabilities and accuracies were estimated for selection of cultivars. The cultivar × location interaction was decomposed into its simple and complex fractions. The genetic and environmental correlations between the traits were estimated, and selection was made for multiple traits using the sum of the standardized variables (Z-index). The genetic variance was significant for all the traits, and the cultivar × location interaction was significant. By the Z-index, 15 wheat cultivars more adapted were identified.

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热带雨养小麦育种计划中潜在亲本的表现

本研究的目的是评估米纳斯吉拉斯州南部地区小麦品种的遗传变异和农艺性状的表现，以便为旱作小麦育种计划选择亲本。我们对米纳斯吉拉斯州两个地点的78个小麦品种进行了不同农艺性状的评价。统计分析采用亨德森混合模型方法进行。对品种的遗传价值进行了预测，并对品种选择的遗传力和准确度进行了估计。将品种×位置相互作用分解为简单分量和复杂分量。估计各性状之间的遗传和环境相关关系，利用标准化变量和(z指数)对多个性状进行选择。各性状的遗传变异均显著，品种与位置互作显著。通过z指数鉴定出15个适应性较强的小麦品种。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crop Breeding and Applied Biotechnology AGRONOMY-BIOTECHNOLOGY & APPLIED MICROBIOLOGY

CiteScore

2.70

自引率

13.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL. It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.