Affiliation:
1. Universidade Federal do Vale do São Francisco, Brazil
2. Embrapa Meio-Norte, Brazil
Abstract
ABSTRACT Cowpea [Vigna unguiculata (L.) Walp.] is an important socioeconomic crop in Brazil, mainly in the Northeast and more recently in the Midwest of Brazil. Charcoal rot caused by Macrophomina phaseolina (Tassi) Goid, is an important disease in semiarid regions, where edaphoclimatic conditions are favorable to the development of disease. The aim of this study was to evaluate the response of 100 cowpea lines to two isolates of M. phaseolina. The experiments were conducted in a completely randomized design, with five replications (two plants per pot). The main variables evaluated were lesion length and relative growth compared to control (RGCC). Among the evaluated accessions, 15% of the lines were resistant to isolate 59 and 11% of the lines were resistant to isolate CMM 2106 of M. phaseolina. Therefore, these accessions can be used as a source of resistance to M. phaseolina by farmers directly as new cultivars or in future hybridizations of cowpea genetic breeding programs.
Subject
General Agricultural and Biological Sciences
Reference19 articles.
1. Avaliação de genótipos de feijão-caupi com resistência a Macrophomina phaseolina;AMARAL A. G. G.;Anais...,2016
2. Cowpea (Vigna unguiculata): genetics, genomics and breeding;BOUKAR O.;Plant Breeding,2018
3. Acompanhamento da Safra Brasileira de Grãos safra 2021/22, v. 9 n. 1 primeiro levantamento,2021
4. Variation in the responses of melon and watermelon to Macrophomina phaseolina;COHEN R.;Crop Protection,2016
5. Desafios do manejo de doenças radiculares causadas por fungos;CORREIA K. C.,2018
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献