A method for evaluation of rice resistance to green rice leafhopper, Nephotettix cincticeps (Uhler), based on nymphal growth.

被引：2
作者：
Hirae, M [1 ]
Fukuta, Y [1 ]
Tamura, K [1 ]
Oya, S [1 ]
机构：
[1] Natl Agr Res Ctr, Hokuriku Res Ctr, Niigata 9430193, Japan
来源：
JAPANESE JOURNAL OF APPLIED ENTOMOLOGY AND ZOOLOGY | 2002年 / 46卷 / 03期
关键词：
Nephotettix cincticeps; green rice leafhopper; rice resistance; evaluation method; nymphal growth;
D O I：
10.1303/jjaez.2002.178
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
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,F, 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.
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页码：178 / 181
页数：4
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