Genetic diversity and correlation network approach on cotton genotypes in southern of Minas Gerais
AUTOR(ES)
Honda Filho, Cássio Pereira; Pereira, Fernanda Aparecida Castro; Rezende, Tiago Teruel; Silva, Josimar Aleixo da; Carvalho, Samuel Pereira de
FONTE
Revista Ceres
DATA DE PUBLICAÇÃO
2022
RESUMO
ABSTRACT The cultivation of Cotton (Gossypium hirsutum) is trending in an upward expansion at Minas Gerais state, Brazil. Due this growth, the breeding program has been demanded for the knowledge about the genetic diversity and correlation between morpho-agronomic traits, to start interesting crosses. The objective of this work was to study the genetic diversity and the correlation network between morpho-agronomic traits of cotton genotypes. Two cotton accessions and five commercial cultivars: FM993, FMT701, FM910, DP604 and DP604BG were evaluated for 16 traits. The results revealed divergence between the genotypes. Unweighted pair-group method arithmetic average (UPGMA) analysis allocated the genotypes in three clusters, with DP604 and Accession 2 being the most divergent. The correlation network helped to visualize the association between traits, presenting a negative correlation between anthracnose with plant height (-0.465), plant vigor (-0.486) and main root length (-0.437). Also, even with some genotypes presenting a higher number of reproductive branches, the correlation for this trait with number of bolls showed a high significant value (0.68). Thus, the genotypes showed wide genetic diversity for the composition of future crosses in cotton breeding programs. The correlation network allowed the visualization of a medium to high correlation pattern for the morpho-agronomic traits.
Documentos Relacionados
- Determining genetic diversity in cotton genotypes to improve variability
- Genetic gains in agronomic and technological traits of elite cotton genotypes
- Genetic diversity in creole genotypes of Amazon chicory
- Snakebites in southern Minas Gerais State, Brazil
- Biometry and genetic diversity of paradise nut genotypes (Lecythidaceae)