幼虫発育を考慮したイネのツマグロヨコバイ抵抗性検定法

概要

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A method for evaluating the resistance of rice to green rice leafhopper, Nephotettix cincticeps (Uhler), based on nymphal growth was developed. Nymphs grew to the second instar on seedlings of susceptible varieties of rice within 3 d and 8 h to 4 d. Therefore, 4 d is a reliable index for nymphal growth rate to the second instar. The B_1F_1 population, from the cross between a resistant rice line Norin-PL6 and a susceptible variety of Toyonishiki, was segregated into resistant and susceptible populations by a combination of nymphal survival rate and nymphal growth rate to the second instar in a test using the seedlings of the rice plants. In a leaf blade test at the heading time of rice plants, the results were similar to those in the seedling test. This fact indicates that the combination of nymphal survival rate and nymphal growth rate to the second instar is effective for the evaluation of rice resistance.
日本応用動物昆虫学会の論文
2002-08-25