Diallel analysis in cowpea aiming at selection for extra-earliness

AUTOR(ES)

Oliveira, Rosana Mendes de Moura, Filho, Francisco Rodrigues Freire, Ribeiro, Valdenir Queiroz, Lopes, Ângela Celis de Almeida, Bernardo, Karla Annielle da Silva, Cruzio, Akemi Suzuki

FONTE

Crop Breed. Appl. Biotechnol.

DATA DE PUBLICAÇÃO

2016-09

RESUMO

Abstract In Brazil, the production of cowpea is concentrated in the Northeast and North; however, in recent years, its cultivation has expanded to the Cerrado biome of the Brazilian Midwest region, where it is incorporated into production arrangements in the form of off-season. In this work, it was carried out a study on the extra-earliness in cowpea in order to select parents and crosses with cycle shorter than 60 days. A test with an F2 generation of a complete diallel cross involving five parents and ten crosses was carried out in a complete randomized block design with six replications. The parents IT82D-889 and AU94-MOB-816 stood out for extra-earliness flowering, while IT82D-60 and IT82D-889 stood out for extra-earliness maturity. The crosses IT82D-60 x AU94-MOB-816 and IT82D-60 x IT82D-889 were more promising in extra-earliness flowering, while IT82D-60 x IT82D-889 and IT82D-60 x MNC04-789B-119-2-3-1 were more promising for extra-earliness maturity.

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