Academic Journal
Heterosis for the root distribution trait in common bean
| العنوان: | Heterosis for the root distribution trait in common bean |
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| المؤلفون: | Grigolo, Sibila, Melo, Rita Carolina de, Fioreze, Ana Carolina da Costa Lara, Guidolin, Altamir Frederico, Coimbra, Jefferson Luís Meirelles |
| المصدر: | Acta Scientiarum. Agronomy; Vol 43 (2021): Publicação contínua; e46712 ; Acta Scientiarum. Agronomy; v. 43 (2021): Publicação contínua; e46712 ; 1807-8621 ; 1679-9275 |
| بيانات النشر: | Universidade Estadual de Maringá |
| سنة النشر: | 2020 |
| المجموعة: | Universidade Estadual de Maringá: Portal de Periódicos da UEM |
| مصطلحات موضوعية: | Phaseolus vulgaris L., hybrid vigor, gene pools, genetic hypotheses, Melhoramento Vegetal |
| الوصف: | Heterosis has been one of the most studied phenomena since genetic studies were conceived. Knowledge of this phenomenon for the root distribution trait in beans (Phaseolus vulgaris L.) can favour the development of genotypes that are more tolerant to abiotic stresses. This study aimed to verify the occurrence of heterosis for the root distribution trait in hybrid F1 populations of common bean derived from crosses within and between gene groups. Thirty-six populations (six parents and 30 hybrids) were evaluated under field conditions in the agricultural years 2016/17 and 2017/18. The root distribution was assessed with the adapted Bohm method. The genotypes responded similarly to environmental changes (absence of an interaction). However, the root distribution differed significantly between the agricultural years. Comparisons between the mean of hybrids from crosses within each gene pool and the mean of parents did not reveal heterosis. The comparisons between gene groups showed significant differences only between BRS Embaixador x IPR Uirapuru, CBS 14 x IPR Uirapuru, and BAF 53 x IPR Uirapuru and the mean of parents. The absence of heterosis in the root trait can be explained by the degree of kinship between the gene groups, as well as some epistatic interactions. ; Heterosis has been one of the most studied phenomena since genetic studies were conceived. Knowledge of this phenomenon for the root distribution trait in beans (Phaseolus vulgaris L.) can favour the development of genotypes that are more tolerant to abiotic stresses. This study aimed to verify the occurrence of heterosis for the root distribution trait in hybrid F1 populations of common bean derived from crosses within and between gene groups. Thirty-six populations (six parents and 30 hybrids) were evaluated under field conditions in the agricultural years 2016/17 and 2017/18. The root distribution was assessed with the adapted Bohm method. The genotypes responded similarly to environmental changes (absence of an interaction). However, the root ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://eduemojs.uem.br/ojs/index.php/ActaSciAgron/article/view/46712/751375150530; http://eduemojs.uem.br/ojs/index.php/ActaSciAgron/article/view/46712 |
| DOI: | 10.4025/actasciagron.v43i1.46712 |
| الاتاحة: | http://eduemojs.uem.br/ojs/index.php/ActaSciAgron/article/view/46712 https://doi.org/10.4025/actasciagron.v43i1.46712 |
| Rights: | Copyright (c) 2021 Acta Scientiarum. Agronomy ; https://creativecommons.org/licenses/by/4.0 |
| رقم الانضمام: | edsbas.825B6389 |
| قاعدة البيانات: | BASE |
| DOI: | 10.4025/actasciagron.v43i1.46712 |
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