Reaction of genotypes BAT-306 and Triunfo-70 of Phaseolus vulgaris L. to Meloidogyne incognita (Kofoid and White) Chitwood

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Dainé Hernández-Ochandia
Mayra G. Roqdríguez Hernández
Ileana Miranda Cabrera
Helena Hernández García
Ricardo Holgado

Abstract

The objective of this research was to determine the susceptibility / resistance behavior of the cultivars BAT-306 and Triunfo-70 of common bean (Phaseolus vulgaris L.) to Meloidogyne incognita (Kofoid and White) Chitwood under semi-controlled conditions. Pots with 1kg of substrate were used, and the plants were inoculated with a 6 initial population (Pi) geometric series of nematodes (0.125; 0. 25; 1; 4; 16 and 64 eggs and second stage juveniles (J2) per substrate gram-1) population initially isolated from common bean growing in Mayabeque province, Cuba. The nematode final population (Pf) was determined at 60 days, and the Reproduction Factor (RF)= Pf/Pi was determined. The cultivar Triunfo-70 was resistant when Pi was lower than 64 eggs and second stage juveniles (J2) per substrate gram-1, with an RF between 0.23 and 0.9; nevertheless, BAT-306 freely allowed the  nematode reproduction, with an RF between 6.1 and 8. The genotypes BAT-306 and Triunfo-70 could be used as susceptible and resistant controls, respectively, in common bean behavior studies in the presence of Cuban populations of M. incognita.

Key words: common bean, root knot nematodes, host resistance, host susceptibility.

Article Details

How to Cite
Hernández-Ochandia, D., Roqdríguez Hernández, M. G., Miranda Cabrera, I., Hernández García, H., & Holgado, R. (2018). Reaction of genotypes BAT-306 and Triunfo-70 of Phaseolus vulgaris L. to Meloidogyne incognita (Kofoid and White) Chitwood. Revista De Protección Vegetal, 31(3), 224–227. Retrieved from https://revistas.censa.edu.cu/index.php/RPV/article/view/865
Section
SHORT COMMUNICATION

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