Abstract
The objective of this work was to identify, through the use of multivariate analysis, the spontaneous accesses of castor bean that show promising characteristics for inclusion in genetic improvement programs of this culture in Brazil. The study was conducted at the Paulista State University, Jaboticabal Campus. The accesses of castor bean seeds obtained were identified as ACS-001-CRSP, ACS-001-JASP, ACS-001-MASP, ACS-001-SESP, ACS-002-JASP, ACS-002-SESP and ACS-003-JASP, from the municipalities of Jaboticabal, Monte Alto, Santa Ernestina and from the District of Córrego Rico. The seeds’ biometric variables and germination potential were measured, in addition to the biomass accumulation of the seedling’s vegetative parts. The experimental design was completely randomized, with seven treatments and four replications. The original data was standardized and submitted to multivariate analysis of principal components and grouping. Through the results obtained, it is possible to reduce the number of original variables into two latent variables with discriminant power between the castor bean accesses, being the multivariate analysis efficient in this process. The castor bean accesses ACS-001-CRSP and ACS-001-MASP are promising for introduction in genetic improvement programs of this culture. Key words: Ricinus communis L., genotype, multivariate statistics, bioenergy.
Highlights
Climate change has often been featured in numerous discussions around the world, especially when emphasizing the consequences of human actions in the environmental context (Cera and Ferraz, 2015; Klein et al, 2016.)
The accesses of castor bean seeds obtained were identified as ACS-001-CRSP, ACS-001JASP, ACS-001-MASP, ACS-001-SESP, ACS-002-JASP, ACS-002-SESP and ACS-003-JASP, from the municipalities of Jaboticabal, Monte Alto, Santa Ernestina and from the District of Córrego Rico
The castor bean accesses ACS-001-CRSP and ACS-001-MASP are promising for introduction in genetic improvement programs of this culture
Summary
Climate change has often been featured in numerous discussions around the world, especially when emphasizing the consequences of human actions in the environmental context (Cera and Ferraz, 2015; Klein et al, 2016.). Processes that result in greenhouse gases emission, such as oil and gas, which are non-renewable energy sources and major precursors of CO2 emissions into the atmosphere (Anifowose and Odubela, 2015). In this context, Shahraeeni et al (2015) reported that the mitigation of global warming is possible through reducing atmospheric concentrations of pollutant gases. The cultivation of castor bean (Ricinus communis L.) can be highlighted as an alternative source of vegetable oil for biodiesel generation, and several other industrial applications with the possibility of viable fuel supply to the Brazilian energy matrix (Dutra et al, 2015; Kallamadi et al, 2015; Lara-Fioreze et al, 2015)
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