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23 Keh Chi Ling. 1969. Testing rice varieties for resistance to tungro disease. Pages 277-291. In: SH Ou and KC Ling (editors). The Virus Diseases of the Rice Plant. Proceedings of a Symposium held at the International Rice Research Institute, Los Baños, Philippines, April, 1967 and published by the Johns Hopkins Press, Baltimore, Maryland, 354 pages.
Keywords: Oryza sativa, Nephotettix virescens, insect vector, observation and testing for tungro resistance, mass screening method, preparation of viruliferous insects, preparation of test seedlings, method of inoculation, significance of daily reacquisition feeding, classifying tungro resistance, evaluation of the method, further modification of the method, defects of the method, varietal resistance to tungro disease, inheritance of tungro resistance