Genetic divergence and character significance in sweet potato genotypes for silage production

Alcinei Mistico Azevedo ,Valter Carvalho de Andrade Júnior ,José Altair Figueiredo ,Carlos Enrrik Pedrosa ,Daniel José Silva Viana ,Vinícius Teixeira Lemos ,Irã Pinheiro Neiva

doi:10.24294/th.v2i1.1774

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Genetic divergence and character significance in sweet potato genotypes for silage production

Alcinei Mistico Azevedo

Valter Carvalho de Andrade Júnior

José Altair Figueiredo

Carlos Enrrik Pedrosa

Daniel José Silva Viana

Vinícius Teixeira Lemos

Irã Pinheiro Neiva

Trends in Horticulture 2019, 2(1), 1-7; https://doi.org/10.24294/th.v2i1.1774

Submitted：28 Nov 2018

Accepted：15 Jan 2019

Published：28 Jan 2019

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Abstract

Considering the need to adopt more sustainable agricultural systems, it is important that sweet potato breeding programs seek to increase not only root productivity, but also the productivity and quality of branches for silage production. The objective was to evaluate the genetic divergence and the importance of traits associated with the production and quality of branch silage in sweet potato genotypes. The experiment was conducted on the JK Campus of the Federal University of Vales do Jequitinhonha and Mucuri Valleys in a randomized block design with 12 treatments and four repetitions. Twelve characteristics of branches and silage were evaluated. There was genetic variability between the genotypes, making it possible to select parents divergent for future breeding programs for silage production. The genotypes BD-54 and BD-31TO were the most divergent in relation to the others, being indicated its use in crossbreeding aiming the improvement of the culture for silage, once the high performance per se of all genotypes evaluated has already been verified in previous works. The characteristics Na, TDN and NDF were those that most contributed to the divergence.

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References

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