Characterization of cowpea genotype resistance to Callosobruchus maculatus

Pesquisa Agropecuária Brasileira

Maria De Jesus Passos De Castro²  Edson Luiz Lopes Baldin²  Patrícia Leite Cruz²  Camila Moreira De Souza²  Paulo Henrique Soares Da Silva¹ 

[1] ,Universidade Estadual Paulista Faculdade de Ciências Agronômicas Botucatu SP ,Brazil

关键词: Vigna unguiculata;    Bruchinae;    Chrysomelidae;    plant resistance;    storage;    Vigna unguiculata;    Bruchinae;    Chrysomelidae;    resistência de plantas;    armazenamento;   

DOI  :  10.1590/S0100-204X2013000900003

来源: SciELO

【 摘 要 】

The objective of this work was to characterize the resistance of 50 cowpea (Vigna unguiculata) genotypes to Callosobruchus maculatus. A completely randomized design with five replicates per treatment (genotype) was used. No-choice tests were performed using the 50 cowpea genotypes to evaluate the preference for oviposition and the development of the weevil. The genotypes IT85 F-2687, MN05-841 B-49, MNC99-508-1, MNC99-510-8, TVu 1593, Canapuzinho-1-2, and Sanzi Sambili show non-preference-type resistance (oviposition and feeding). IT81 D-1045 Ereto and IT81 D-1045 Enramador exhibit antibiosis against C. maculatus and descend from resistant genitors, which grants them potential to be used in future crossings to obtain cowpea varieties with higher levels of resistance.

【 授权许可】

CC BY   
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