Adaptability, agronomic performance and genetic divergence of castor genotypes grown in the Cerrado-Pantanal ecotone
Abstract
Under the hypothesis of distinction and characterization of promising genotypes in the genetic improvement of castor, the aim of this work was to evaluate the agronomic performance, phenotypic adaptability and genetic divergence among castor genotypes grown in Savanna-Pantanal ecotone. The experiment was conducted in the years 2009 and 2010 in the experimental area of the State University of Mato Grosso do Sul. The treatments consisted of 7 castor genotypes (BRS Energia, IAC 2028, IAC-Guarani, BRS Nordestina, BRS Paraguaçu, IAC-80 and IAC-226) arranged in a randomized block design with three replications. Was assessed the following characters: plant height, stem diameter, number of fruits and productivity. Data were subjected to analysis of individual and joint variance and means compared by Skott-Knott test. The phenotypic stability was estimated productivity data by the method of Lins and Binns. The genetic divergence between the genotypes was determined by the methods of Ward’s and Tocher’s, having as dissimilarity measure the Mahalanobis’s distance. The genotype BRS Energia showed higher productivity and phenotypic adaptability. The crossing of this genotype with BRS Paraguaçu can obtain a hybrid with high heterosis effect, and consequently, high productivity.
Downloads
References
BANZATTO, D. A.; KRONKA, S. N. Experimentação agrícola. 4. ed. Jaboticabal: FUNEP, 2006. 237p.
BELTRÃO, N. E. M. A cadeia da mamona no Brasil, com ênfase para o segmento P&D: estado da arte, demandas de pesquisa e ações necessárias para o desenvolvimento. Campina Grande: Embrapa Algodão, 2004. 19p.
CRUZ, C. D. GENES - a software package for analysis in experimental statistics and quantitative genetics. Acta Scientiarum Agronomy, v. 35, p. 271-276, 2013.
CRUZ, C. D; REGAZZI, A. J. Modelos biométricos aplicados ao melhoramento genético. Viçosa: Imprensa Universitária, 2007, 480 p.
DHEDHI, K. K.; GHELANI, Y. H.; JOSHI, H. J.; DANGARIA, C. J. Correlation and path coefficient analysis in Castor (Ricinus communis L.) over environments. Agricultural of Science Digest, v. 30, p. 286-289, 2010.
GOGOI, S. N.; CHAKRAVORTY, R.; BARUA, P. K. Correlation and path analysis in local castor (Ricinus communis L.) genotypes, the host plant of eri silkworm. Journal of Advanced Plant Science, v. 22, p. 277-279, 2009.
MACHADO, E. L.; SILVA, A. S.; SANTOS, A. G.; BASTOS, L. A.; PESTANA, C. N.; SANTOS, K. S.; FERREIRA, C. F.; DIAMANTIONO, M. S. A. S. Dissimilaridade genética entre cultivares de mamoneira por meio de marcadores RAPD. Pesquisa Agropecuária Brasileira, v. 48, n. 3, p. 342-345, 2013.
SCHIAVO, J. A.; PEREIRA, M. G.; MIRANDA, L. P. M.; DIAS NETO, A. H.; FONTANA; A. Caracterização e classificação de solos desenvolvidos de arenitos da formação Aquidauana MS. Revista Brasileira de Ciência do Solo, v. 3, p. 881-889, 2010.
SEVERINO, L. S.; MILANI, M.; MORAES, C. R. A.; GONDIM, T. M. S.; CARDOSO, G. D. Avaliação da produtividade e teor de óleo de dez genótipos de mamoneira cultivados em altitude inferior a 300 metros. Revista Ciência Agronômica, v. 37, p. 188‑194, 2006.
SILVA, T. R. B.; LEITE, V. E.; SILVA, A. R. B.; VIANA, L. R. Adubação nitrogenada em cobertura na cultura da mamona em plantio direto. Pesquisa Agropecuária Brasileira, v. 42, n. 9, p. 1357-1359, 2007.
SINGH, D. The relative importance of characters affecting genetic divergence. Indian Journal of Genetic and Plant Breeding, v. 41, n. 1, p. 237-245, 1981.
SOUZA, N. C.; MOTA, S. B.; BEZERRA, F. L. M.; AQUINO, B. F.; SANTOS, A. B. Produtividade da mamona irrigada com esgoto doméstico tratado. Revista Brasileira de
Engenharia Agrícola e Ambiental, v.14, n.5, p.478–484, 2010
TORRES, F. E.; SILVA, E. C.; TEODORO, P. E.; Desempenho de genótipos de soja nas condições edafoclimáticas do ecótono Cerrado-Pantanal. Interações, v. 15, n. 1, p. 71-78, 2014.
TORRES, F. E.; TOLEDO, L. R.; RIBEIRO, M. H. P. G.; TEODORO, P. E.; RIBEIRO, L. P.; CORREA, C. C. G. Influência do manejo de plantas daninhas e da adubação nitrogenada no teor de óleo em cultivares de mamona (Ricinus communis). Revista de Ciências Agrárias (Lisboa), v. 36, p. 357-362, 2013.
WARD, J. H. Hierarchical grouping to optimize an objective function. Journal of the American Statistical Association, v.58, p.236-244, 1963.
Authors retain copyright and grant the Journal the right to the first publication. Authors are encouraged to and may self-archive a created version of their article in their institutional repository, or as a book chapter, as long as acknowledgement is given to the original source of publication. As the Journal provides open access to its publications, articles may not be used for commercial purposes. The contents published are the sole and exclusive responsibility of their authors; however, the publishers can make textual adjustments, adaptation to publishing standards and adjustments of spelling and grammar, to maintain the standard patterns of the language and the journal. Failure to comply with this commitment will submit the offenders to sanctions and penalties under the Brazilian legislation (Law of Copyright Protection; nº 9,610; 19 February 1998).