Data/hora: 09/06/2024 04:27:08

Provedor de dados: 	Horticultura Brasileira	
País: 	Brazil	
Título: 	Selection of squash “Menina Brasileira” carrying the allele “Bush” with high yield potential	
Autores: 	Ferreira,Mariane G; Almeida,Gabriella Q de; Pessoa,Herika P; Dariva,Françoise D; Dias,Felipe de O; Nick,Carlos.	
Data: 	2019-03-01	
Ano: 	2019	
Palavras-chave: 	Cucurbita moschata; Plant architecture; “bush type”; Genetic resources; Vegetable breeding.	
Resumo: 	ABSTRACT This study was performed to introduce the allele Bush of commercial cultivars with a bush growth habit into Cucurbita moschata accessions and select the best crossings for production potential and standard fruit shape “Menina Brasileira” through general combining ability (GCA) and specific combining ability (SCA). To determine GCA and SCA, a partial diallel analysis was performed. The parental group (group I) consisted of two cultivars containing the dwarfism bush gene, and the second group (Group II), formed by five accessions of UFV Vegetable Germplasm Bank, with high production potential and fruit shape “Menina Brasileira”. We evaluated: productivity (PROD), fruit shape (FORM), growth rate until the 50th day after transplanting (CRESC), and length of the main stem on the 50th day (COMP). Significant differences were noticed for CRESC and COMP only between GCA of parents belonging to group I, in which Zapallo stood out. For PROD and FORM, diallel analysis proved to be efficient in studying GCA effects. Cultivar Piramoita (group I) and accessions BGH-4360 and BGH-5253 (group II) showed positive values for GCA, suggesting that these parents possess a higher frequency of favorable alleles for these two traits. Significance in SCA effects was also verified, highlighting the crossing Piramoita x BGH-4360, for PROD, indicating that this combination is the most promising for breeding purposes.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000100035	
Editor: 	Associação Brasileira de Horticultura	
Relação: 	10.1590/s0102-053620190105	
Formato: 	text/html	
Fonte: 	Horticultura Brasileira  v.37 n.1 2019	
Fonte: 	info:eu-repo/semantics/openAccess