title: Correlation and path analysis of biomass sorghum production.
abstract: Sorghum biomass is an interesting raw material for bioenergy production due to its versatility, potential of being a renewable energy source, and low-cost of production. The objective of this study was to evaluate the genetic variability of biomass sorghum genotypes and to estimate genotypic, phenotypic, and environmental correlations, and direct and indirect effects of seven agronomic traits through path analysis. Thirty-four biomass sorghum genotypes and two forage sorghum genotypes were cultivated in a randomized block design with three replicates. The following morpho-agronomic traits were evaluated: flowering date, stem diameter, number of stems, plant height, number of leaves, green mass production, and dry matter production. There were significant differences at the 1% level for all traits. The highest genotypic correlation was found between the traits green mass production and dry matter production. The path analysis demonstrated that green mass production and number of leaves can assist in the selection of dry matter production.
authors.affiliation: Programa de Pós-Graduação em Genética e Melhoramento de Plantas, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil taianapaula_abv@hotmail.com.
authors.forename: T P S
authors.initials: TP
authors.lastname: Vendruscolo
authors.affiliation: Departamento de Agronomia, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
authors.forename: M A A
authors.initials: MA
authors.lastname: Barelli
authors.affiliation: Programa de Pós-Graduação em Genética e Melhoramento de Plantas, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
authors.forename: M A S
authors.initials: MA
authors.lastname: Castrillon
authors.affiliation: Programa de Pós-Graduação em Genética e Melhoramento de Plantas, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
authors.forename: R S
authors.initials: RS
authors.lastname: da Silva
authors.affiliation: Programa de Pós-Graduação em Genética e Melhoramento de Plantas, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
authors.forename: F T
authors.initials: FT
authors.lastname: de Oliveira
authors.affiliation: Programa Nacional de Pós-Doutorado em Genética e Melhoramento de Plantas, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
authors.forename: C L
authors.initials: CL
authors.lastname: Corrêa
authors.affiliation: Programa de Pós-Graduação em Rede de Biodiversidade e Biotecnologia da Amazônia, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
authors.forename: B W
authors.initials: BW
authors.lastname: Zago
authors.affiliation: Núcleo de Recursos Genéticos e Obtenção de Cultivares, Embrapa Milho e Sorgo, Sete Lagoas, MG, Brasil.
authors.forename: F D
authors.initials: FD
authors.lastname: Tardin
mesh_terms: D018533:Biomass; D004777:Environment; D014644:Genetic Variation; D005838:Genotype; D010641:Phenotype; D019655:Quantitative Trait, Heritable; D045868:Sorghum / Q000235:genetics*