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Pesquisa Agropecuária Brasileira
Article . 2006
Data sources: DOAJ
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Capacidade combinatória em milho-pipoca por meio de dialelo circulante Combining ability in popcorn by circulant diallel

Authors: Silvério de Paiva Freitas Júnior; Antonio Teixeira do Amaral Júnior; Messias Gonzaga Pereira; Cosme Damião Cruz; Carlos Alberto Scapim;

Capacidade combinatória em milho-pipoca por meio de dialelo circulante Combining ability in popcorn by circulant diallel

Abstract

O objetivo deste trabalho foi gerar informações sobre a capacidade combinatória de dez genitores de milho-pipoca, em cruzamentos no esquema de dialelo circulante em dois ambientes, para futura utilização em programa de melhoramento. Os híbridos, genitores e testemunhas foram avaliados quanto à altura de plantas (AP), produção de grãos (PG) e capacidade de expansão (CE), em delineamento em blocos ao acaso, com quatro repetições. A análise conjunta do dialelo revelou reduzido comportamento diferencial dos genótipos, com predominância dos efeitos aditivos apenas para CE. Os genitores UNB2U-C1, BRS Angela, UNB2U-C2 e Viçosa-UFV foram os indicados para melhoramento intrapopulacional, ao passo que os híbridos de interesse para seleção interpopulacional foram PR-Ervália x BRS Angela e UNB2U-C1 x BRS Angela.The objective of this work was to obtain combining ability information about ten genitors of popcorn, in a circulant diallel crossing in two environments, for using in future breeding programs. The hybrids, genitors and controls were evaluated for plant height (PH), grain yield (GY) and popping expansion (PE), in a randomized complete block design with four replications. The joint analysis of circulant diallel showed reduced differences on the performance of the genotypes. The additive effects were more important than non-additive effects only for the CE. Genitors UNB2U-C1, BRS Angela, UNB2U-C2 and Viçosa-UFV were indicated for the intrapopulation breeding, while superior hybrids for the interpopulation breeding were PR-Ervália x BRS Angela and UNB2U-C1 x BRS Angela.

Keywords

hybrids, Agriculture (General), genetic parameters, parâmetros genéticos, Zea mays, híbridos, S1-972

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold