Genetic parameters and selection strategies for soybean progenies aiming at precocity and grain productivity

IF 1.2 4区农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY

Ciencia E Agrotecnologia Pub Date : 2022-01-01 DOI:10.1590/1413-7054202246004322

Josef Gastl Filho, O. T. Hamawaki, A. Nogueira, C. O. Silva, R. L. Hamawaki, C. Hamawaki

{"title":"Genetic parameters and selection strategies for soybean progenies aiming at precocity and grain productivity","authors":"Josef Gastl Filho, O. T. Hamawaki, A. Nogueira, C. O. Silva, R. L. Hamawaki, C. Hamawaki","doi":"10.1590/1413-7054202246004322","DOIUrl":null,"url":null,"abstract":"ABSTRACT Genetic parameters and correlations are useful tools in breeding programs, helping to make decisions about the most efficient method of selecting soybean progenies. The objective was to determine genetic parameters and correlations between characters in 52 soybean genotypes, from 4 populations and to select the superior progenies for early cycle and grain productivity. The experiment was carried out in a randomized block design consisting of 52 RCF3:4 progenies and three controls (UFUS7010, TMG801, BRSGO7560). Agronomic and yield traits were evaluated. For the number of days to flowering and maturity, plant height at maturity and number of nodes at maturity, a high heritability estimate and favorable conditions for selection were observed. The existence of correlations between the characters was verified with the predominance of genetic causes, which allows the success in the indirect selection. By the Mulamba and Mock method, the highest selection gain was obtained, however, for the genotype-ideotype distance index method, greater gains were obtained for production components, therefore, 15 early cycle and productive superior RCF3:4 progenies were selected with a cycle between 79.0 and 105.0 days and production of 302.5 to 463.0 g plot-¹.","PeriodicalId":10188,"journal":{"name":"Ciencia E Agrotecnologia","volume":"1 1","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ciencia E Agrotecnologia","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1590/1413-7054202246004322","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

ABSTRACT Genetic parameters and correlations are useful tools in breeding programs, helping to make decisions about the most efficient method of selecting soybean progenies. The objective was to determine genetic parameters and correlations between characters in 52 soybean genotypes, from 4 populations and to select the superior progenies for early cycle and grain productivity. The experiment was carried out in a randomized block design consisting of 52 RCF3:4 progenies and three controls (UFUS7010, TMG801, BRSGO7560). Agronomic and yield traits were evaluated. For the number of days to flowering and maturity, plant height at maturity and number of nodes at maturity, a high heritability estimate and favorable conditions for selection were observed. The existence of correlations between the characters was verified with the predominance of genetic causes, which allows the success in the indirect selection. By the Mulamba and Mock method, the highest selection gain was obtained, however, for the genotype-ideotype distance index method, greater gains were obtained for production components, therefore, 15 early cycle and productive superior RCF3:4 progenies were selected with a cycle between 79.0 and 105.0 days and production of 302.5 to 463.0 g plot-¹.

查看原文本刊更多论文

大豆籽粒早熟和高产的遗传参数与选择策略

遗传参数和相关关系是育种计划中有用的工具，有助于制定最有效的大豆后代选择方法。目的是确定来自4个群体的52个大豆基因型的遗传参数和性状间的相关关系，以选择早期周期和籽粒生产的优良后代。实验采用随机区组设计，包括52只RCF3:4子代鼠和3只对照鼠(UFUS7010、TMG801、BRSGO7560)。进行农艺性状和产量性状评价。在花期和成熟期、成熟期株高和成熟期节数方面，有较高的遗传力估计和有利的选择条件。性状间存在相关性，遗传因素占优势，间接选择成功。Mulamba法和Mock法获得的选择增益最高，而基因型-理想型距离指数法在生产组分上获得的选择增益更大，因此选择了15个周期为79.0 ~ 105.0 d、产量为302.5 ~ 463.0 g plot-¹的早周期高产优子代RCF3:4。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Ciencia E Agrotecnologia 农林科学-农业综合

CiteScore

2.30

自引率

9.10%

发文量

审稿时长

6-12 weeks

期刊介绍： A Ciência e Agrotecnologia, editada a cada 2 meses pela Editora da Universidade Federal de Lavras (UFLA), publica artigos científicos de interesse agropecuário elaborados por membros da comunidade científica nacional e internacional. A revista é distribuída em âmbito nacional e internacional para bibliotecas de Faculdades, Universidades e Instituições de Pesquisa.