Summary: | Evaluation and identification of resistant entries for different hopper pests is a continuous process to develop new resistant
varieties. Identification of novel resistant genotypes from landraces will provide valuable information, protect the local
germplasm, using them in crossing programme. A total of seventy four rice landraces along with resistant and susceptible
checks viz., Ptb-33, MO-1 and TN-1 were used for the present study. Standard seed box screening techniques were followed
to evaluate resistance to BPH, WBPH and GLH under glass house condition. Among the landraces screened, none of the
entries was observed as highly resistant. Ten entries were found resistant to BPH, eight each for WBPH and GLH with the
damage score of 3. Among the resistant lines, Panamara Samba and Karthi Samba showed resistance to both BPH and
WBPH. 25 landraces showed moderate resistance to BPH, 18 landraces showed resistance to WBPH and 27 landraces were
found to be resistance to GLH with score 5.
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