author(s)
Ritu Kumari Pandey and DK Nayak

abstract
Out of fifty two varieties/cultivars screened against root-knot nematode, only 6 showed resistant reaction with 7-10 number of galls per plant, 7 showed moderately resistant reaction with 23-31 number of galls per plant, 32 susceptible reaction with 31-91 number of galls per plants & 5 highly susceptible with more than 112-116 numbers of galls per plants. After infection of root-knot nematode, the maximum average shoot length of ridge gourd varieties was 160cm in BSS-1036, and root length was 38.66cm in Ridge gourd 12 patra. The decrease in shoot length & root length were more pronounced i.e., in SS-Ramu (16.83cm) and Ramu F1 (11.36) respectively. The decrease in shoot weight (5.53g) and root weight (0.23) of the ridge gourd variety, Nayagarh Local and Tauri, BSS-1009 respectively. Possible reason for reduction of shoot weight and root weight in infected plant may be due to improper supply of nutrients resulting from nematode infection for which it is compensated to some extent in resistant varieties.