Evaluation of some oilseed-rape cultivars against reniform nematode, Rotylenchulus reniformis

摘要

Ten imported oilseed-rape Cultivars were evaluated for their relative susceptibility to the reniform nematode, Rotylenchulus reniformis under greenhouse conditions. The degree of susceptibility was based on number of females per root system of each cultivar. Accordingly, Candle cultivar was categorized as resistant host against the nematode infection and four Cultivars (Global,Lirasol, Tower and Hanna) were considered as moderately resistant hosts. On the other hand, Duplo cultivar was classified as susceptible host and four Cultivars (Canola 103, Loras, Semu DNK 235/84 and Sedo) were ranked as highly susceptible ones against the reniform nematode infection. Therefore, all tested Cultivars showed great variability in their reaction to the nematode infection according to the host type. Finally, the differences among the Cultivars tested should serve as a good resource for plant breeders and cropping systems to limit the loss due to the nematode infection.