Screening of Some Popular Egyptian Varieties of Some Solanaceous Vegetables Against Root-Knot Nematode, Meloidogyne Javanica

Abstract

Sixteen cultivars varieties of the following solanaceous vegetables; eggplant varieties. (Balady, Classic, Long white and Woman bag), pepper varieties. (Balady, Deer horn, Lamashiar, Mexican, Red sweet zoly, Saudi and Top star) and tomato varieties (Al-Basha 1077, Sama, Strain-B, Super Cristal and Tomato 935) were tested for their host response to Meloidogyne javanica. According to rating scale based on nematode reproduction, Classic, Long white & Woman bag varieties. of eggplant and Top star variety. of pepper were considered as highly susceptible hosts with (Rf) values 18.04, 15.24, 19.82 & 17.30 folds, respectively. While, Balady variety. of eggplant and Strain-B variety. of tomato were classified as moderately susceptible hosts to nematode infection with (Rf) values 5.28 and 5.07 folds. Lamashiar variety. of pepper and tomato varieties. Super Cristal, Al- Basha 1077 &Tomato 935were found less susceptible with (Rf) values ranged between 1.07 and 4.83 folds. On the other hand, M. javanica failed to reproduce and multiple on Deer horn variety. of pepper, which was ranked as highly resistant host with (Rf) value 0.59-fold. Whereas, Balady variety. of pepper and Sama variety. of tomato were ranked as resistant hosts. Nematodes could not reproduce, develop, or penetrate the roots of Mexican, Red sweet zoly and Saudi varieties. of pepper, which were ranked as immune hosts to M. javanica infection.