Correlations and path analysis on oil content of castor genotypes

Authors

  • Francisco Eduardo Torres Universidade Estadual de Mato Grosso do Sul
  • Paulo Eduardo Teodoro Universidade Estadual de Mato Grosso do Sul
  • Larissa Pereira Ribeiro Universidade Estadual de Mato Grosso do Sul
  • Caio Cezar Guedes Correa Universidade Estadual de Mato Grosso do Sul
  • Fernanda Baptistella Hernandes Universidade Estadual de Mato Grosso do Sul
  • Reliane Lima Fernandes Universidade Estadual de Mato Grosso do Sul
  • Anna Catharina Gomes Universidade Estadual de Mato Grosso do Sul
  • Kamila Vieira Lopes Universidade Estadual de Mato Grosso do Sul

DOI:

https://doi.org/10.14393/BJ-v31n5a2015-26391

Keywords:

Biodiesel, Genetic breeding, Ricinus communis L, Vegetable oil.

Abstract

With the aim of to evaluate the correlation and the direct and indirect effects of morphological descriptors on oil content of castor (Ricinus communis L.) genotypes, an experiment was conducted in the agricultural years 2010/2011 and 2011/2012 at Universidade Estadual de Mato Grosso do Sul - Unit of Aquidauana (UEMS/UUA). The experimental design used was randomized blocks with three replications. The treatments consisted of seven castor genotypes (BRS Energia, IAC-2028, IAC-Guarani, BRS Nordestina, BRS Paraguaçu, IAC-80 and IAC-226). The following descriptors were evaluated: plant height (PH), stem diameter (SD), number of bunches (NB), number of fruits (NF), mass of fruits (MF), mass of hundred seeds (MHS) and oil content (OC). Initially, it was determined the following genetic parameters: genotypic variance, environmental variance, coefficient of experimental variation, coefficient of genotypic variation, heritability, environmental correlations, phenotypic correlations and genetic correlations. The phenotypic correlations were deployed by path analysis in estimates of direct and indirect effects, and preceded the diagnosis of multicollinearity in explanatory variables and independent explanatory variables on the OC (primary dependent variable). The results indicated that the direct and indirect selection of genotypes with plant height, stem diameter, number of bunches and mass of hundred seeds is promising to select genotypes with high oil content in castor.

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Published

2015-09-10

How to Cite

TORRES, F.E., TEODORO, P.E., RIBEIRO, L.P., CORREA, C.C.G., HERNANDES, F.B., FERNANDES, R.L., GOMES, A.C. and LOPES, K.V., 2015. Correlations and path analysis on oil content of castor genotypes . Bioscience Journal [online], vol. 31, no. 5, pp. 1363–1369. [Accessed7 December 2022]. DOI 10.14393/BJ-v31n5a2015-26391. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/26391.

Issue

Section

Agricultural Sciences