Varieties with different resistance to tungro (RTV) and green leafhopper (GLH) [Nephotettix virescens]
1985
Dahal, G. | Hibino, H. (International Rice Research Inst., Los Banos, Laguna (Philippines). Plant Pathology Dept.)
Utri Merah, Utri Rajopan, and TN1 were preferred by GLH (green leafhopper); the hoppers had high nymphal survival and long life span. GLH preferred IR60, but had high mortality and short life span on that variety. ASD 7 and ASD 8 were least preferred and GLH on them had low nymphal survival and shorter life span. Regardless of the number of GLH inoculated, Utri Merah, Utri Rajapan, and Gam Pai 30-12-15 had low seedling infection. Most seedling of the test varieties, except TN 1, were infected with RTBV alone. However, a few seedlings of Gam Pai 30-12-15. Utri Rajapan, IR50, IR58 and IR60 were infected with both RTBV and RTSV. Although most RTV-resistant varieties also have GLH resistance, Utri Rajapan and Utri Berah were GLH susceptible despite strong RTV resistance
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