SCREENING OF INDIGENOUS RICE ( SCREENING OF INDIGENOUS RICE (Oryza sativa Oryza sativa Oryza sativa L.) AGAINST GALL MIDGE, STEM BORER, LEAF FOLDER, INSECT PEST AND LEAF MIDGE, STEM BORER, LEAF FOLDER, INSECT PEST AND LEAF BLAST BROWN SPOT DISEASE IN BAST

Abstract

The investigation was conducted S.G. College of Agriculture and Research Station, Jagdalpur, Chhattisgarh. Using 97 genotypes during Kharif 2016 tested against different insect pests, in gall midge, 55 were free, 1 exhibited 1 score, 20 and 21 were 3 and 5 score. For stem borer, 69 having 0 score. Remaining was 1 score. For leaf folder, 6 were free, 88 and 3 were 1 and 3 score. From the result, out of 97 genotypes tested against different insect pests, 55, 69 and 3 promising entries against gall midge, stem borer and leaf folder. Out of 97 genotypes, 7 free from leaf blast and 0-1 % percent disease incidence (PDI) while, 15, 23, 20 and 32 exhibited 2-10 %, 11- 20 %, 21-30, > 30 % were PDI respectively. For brown spot, 15 having 0-1% PDI, 20 with 2-10 %, 24 with 11- 20 %, 12 with 21-30% and 26 with >30 % PDI respectively. From the result, it was concluded that out of 97 genotypes tested against diseases, 7 and 15 promising entries for leaf blast and brown spot. The desirable traits from these sources can be merged into elite entries with higher yield potential or exploited for advanced genetic analysis studies.