Data/hora: 10/06/2024 11:13:03

Provedor de dados: 	22	
País: 	Brazil	
Título: 	Cluster analysis of sunflower genotypes grown in conditions of free and restricted pollination

Análise de agrupamento de genótipos de girassol cultivados em condição de polinização livre e restringida	
Autores: 	Chambó, Emerson Dechechi; Correia, Arlindo Fabrício; da Cunha, Fernando; Garcia, Regina Conceição; de Oliveira, Newton Tavares Escocard; de Vasconcelos, Edmar Soares; da Silva, Nardel Luiz Soares.	
Data: 	2014-12-14	
Ano: 	2014	
Palavras-chave: 	: análise multivariada; Apis mellifera; D2 análises; Importância de caracteres; Melhoramento genético.	
Resumo: 	The objective of this research was to obtain the genetic divergence among eight sunflower genotypes by UPGMA clustering method using the Mahalanobis distance. Seven agronomic traits related to production were evaluated, and also determined the relative importance of characters in the discrimination of phenotypic variation. These measurements were performed on condition of free pollination and restricted pollination. The experimental design was a completely randomized block with four replications. The characters analyzed were: mass of capitulum, mass of 1000 achenes, number of achenes per inflorescence, vigor, germination, oil content and grain yield. The genetic divergence was estimated by UPGMA clustering method using genetic Mahalanobis distance, while the relative contribution of each character to the phenotypic divergence was assessed by the method of Singh. In both tests, we verified a significant variability among eight sunflower genotypes for seven agronomic traits evaluated. It was verified difference among the main characters that contributed to explain the genetic dissimilarity among genotypes of sunflower in conditions of free pollination and restricted to pollinators. Divergent groupings were found among genotypes when grown in conditions of free pollination and restricted to pollinators.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Português	
Identificador: 	http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/11168

10.1818/sap.v13i0.11168	
Editor: 	Scientia Agraria Paranaensis	
Relação: 	http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/11168/7997	
Formato: 	application/pdf	
Fonte: 	Scientia Agraria Paranaensis; Vol. 13 - Suplemento (2014); 323-328

1983-1471