Evaluation of Varieties of Caupi Bean to Meloidogyne Incognita Parasitism
Gilberto Antonio Torres Júnior
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Fernandes Antonio de Almeida *
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Erik Gomes Sampaio
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Francisco Tarcísio Lucena
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Maria Lucia Tiburtino Leite
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Wéverson Lima Fonseca
Department of Plant Science, Federal University of Ceará, Fortaleza, CE, Brazil.
Artur Franco Barreto
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Francisco de Alcântara Neto
Department of Agriculture, Federal University of Piauí, Bom Jesus, PI, Brazil.
Francisco de Alcântara Neto
Department of Agriculture, Federal University of Piauí, Bom Jesus, PI, Brazil.
Francisco Fernandes Pereira
Department of Agriculture, Federal University of Piauí, Bom Jesus, PI, Brazil.
Rezanio Martins Carvalho
Department of Agronomy, Rural Federal University of Pernambuco, Brazil.
Ancélio Ricardo de Oliveira Gondim
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
Lucimere Maria da Silva Xavier
Department of Agronomy, Federal University of Campina Grande, PB, Brazil.
*Author to whom correspondence should be addressed.
Abstract
The culture of Cowpea (Vigna unguiculata L.) of wide adaptation of the various edaphoclimatic conditions of Brazil is of fundamental importance for the socioeconomic development of the north and northeast regions, however, the productivity can be limited by pathogenic agents, such as phytonematodes, belonging to the genus Meloidogyne. Due to this condition, the objective was to evaluate the behavior of different varieties of cowpea against the parasitism of M. incognita. The reaction test was performed with inoculation of 5.000 eggs/juveniles in the region of the root. The experiment was carried out in a greenhouse, with a completely randomized design, with 14 varieties (Bastiãozinho; Mosqueado; Maravilha; Balinha; Garanhão; Sempre verde; Canapuzinho; Canapu branco; Paulistinha; Pujante; Canapu da Vagem Roxa; Rajado PE; Costela de Vaca e Setentão) with five replications. 60 Sixty days after inoculation, some agronomic characteristics and parasitism were evaluated. All varieties were susceptible to M. incognita, with RR > 1. However, the Paulistinha variety proved to be moderately resistant.
Keywords: Vigna unguiculata (L), root-knot nematode, resistance, pathogen