Genetic Divergence in Urena lobata Accessions to Quantitative Traits


  •  Lucinete Miranda Gomes    
  •  Albejamere Pereira de Castro    
  •  Therezinha de Jesus Pinto Fraxe    
  •  Pedro de Queiroz Costa Neto    
  •  Angela Maria da Silva Mendes    
  •  Mágno Sávio Ferreira Valente    
  •  Carla Coelho Ferreira    
  •  Maria Luiza Andrade Pereira    

Abstract

In this study, 14 quantitative traits were evaluated, divided into five distinct categories, related to the plants, leaves, flowers, fruits and seeds of seven Mallow accessions belonging to the NUSEC/UFAM germplasm collection. With the characteristics measured, the genetic variability of the accessions was evaluated, aiming at the genetic improvement of the culture. Through the analysis of variance, it was possible to assemble and propose the 14 agronomic descriptors, being that with the application of the clustering method (UPGMA), which generated a dendrogram of dissimilarity, it was possible to divide the seven genotypes into two distinct phenotypic groups, and their subgroups. The study showed that there is a great divergence between the accesses and the recommendation for the crossover is between the accesses ANÃ/MAC, ANÃ/MAQ and PIN/BER. The high heritability observed for the characters analyzed suggests the phenotypic value as a reliable measure for selection of the genotypes studied.



This work is licensed under a Creative Commons Attribution 4.0 License.