Data/hora: 20/05/2024 09:15:57

Biblioteca(s): 	Epagri-Sede.	
Tipo da produção científica: 	Artigo em Anais de Congresso / Nota Técnica	
Data corrente: 	16/11/2022	
Data da última atualização: 	16/11/2022	
Autoria: 	SARAIVA, F. R. S.; MELO, R. C.; CERUTTI, P. H.; COIMBRA, J. L. M.; ALVES, D. P.; GUIDOLIN, A. F.	
Título: 	Heterotic groups of onions (Allium cepa L.) for the development of low-pungency hybrids.	
Ano de publicação: 	2022	
Fonte/Imprenta: 	REVISTA COLOMBIANA DE CIENCIAS HORTÍCOLAS, Tunja, Boyacá, v. 16, n. 1, p. 1-10, 2022.	
Idioma: 	Inglês	
Conteúdo: 	The growing demand for low-pungency cultivars onion has opened new market niches. The objective of this study was to characterize heterotic onion groups to develop low-pungency hybrid cultivars. A field experiment with a randomized block design and two factors (genotype and fertilization) arranged in split plots was carried out in Ituporanga-SC (Brazil), in 2019. The plots corresponded to two fertilization levels (with and without sulfur), and the subplots corresponded to 26 onion genotypes, where the germplasm was derived from different (male-sterile-LA and maintainer-LB) lines, advanced populations and cultivars. The bulbs were evaluated for the following traits: pyruvic acid (indicator of pungency), sulfur content and bulb yield. The genotype performance differed according to the fertilization level. In the sulfur-free treatments, four heterotic groups were identified. The genetic variation in the crosses LA11 × LB24 and LA15 × LB19 could be exploited for negative selection for pungency and positive selection for bulb yield.	
Thesagro: 	bulb yield; ideotype; multivariate analysis; pyruvic acid content; standardized canonical coefficient.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_55665.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
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