author(s)
Prajna Pati, Mayabini Jena, Swarnali Bhattacharya, Annamalai M, Raghu S, Behera SK, Sanghamitra P, Gurupirasanna Pandi G and Sankari Meena K

abstract
Red rice genotypes are characterized by their huge nutritional values. Apart from this property, they also possess valuable sources of resistance to many biotic and abiotic stresses. In the present investigation, a total of 215 red rice accessions collected from north east and other parts of India were screened for their resistance against brown plant hopper (BPH) at National Rice Research Institute (NRRI), Cuttack by following modified screening technique. The results showed, among 215 genotypes, 4 were highly resistant, 11 were resistant and 13 were moderately resistant against BPH. The rest 187 genotypes were either susceptible or highly susceptible. The mechanism of resistance in these identified lines was studied. The nymphal survivility and development was lower in resistant genotypes (Mata Meher 43.33%) after 5day of release as compared to susceptible check TN-1 (100% survivility). Similarly the nymphal developmental period was less in resistant lines than TN-1 (100% nymphs were developed in to adult) after 15^th days of release. The highly resistant genotype Matameher has shown lowest FPLI index (6.75) as compared to resistant(R), moderately resistant (MR) and susceptible (S) reactions.