水稻在不同生育時期對褐飛蝨抵抗性反應之初步觀察
Other Title
Reaction of Rice Hybrid Lines to the Brown Planthopper at different Growing Stages
Journal
中華農業研究
Journal Volume
32
Journal Issue
4
Pages
379-382
Date Issued
1983-12-10
Date
1983-12-10
Author(s)
楊遜謙
S.C. Yang
Abstract
在本分所選育中之水稻系統對褐飛蝨（Nilaparvata lugens stal ）之抵抗性，在幼苗期為抗性反應者至成熟期部份轉為感蟲。這種抗蟲性之轉變稉稻系統較和秈稻系統所佔比例為高。惟若干在幼苗期呈現中感程度之系統在成熟期卻有良好之抗蟲性、頗有利用之價值。由供試材料在不同生育時期之抗蟲性反應可知現行抗蟲性之篩選方法有加以檢討改進之必要。
Reaction of F3, F4 and F5 lines of rice to the brown planthopper at seedling and maturing stages were observed in the second crop of 1981 at Chiayi Agricultural Experiment Station. Preliminary results revealed that some of the hybrid lines which were resistant at seedling stage became susceptible at maturity stage whereas some moderately susceptible lines at seedling stage appeared resistant when they were fully matured. The switch from resistance to susceptibility was more pronounced for Japonica lines than Indicas. From this observation, it was inferred that some lines might possess adult resistance which would be of potential importance in the future breeding program. Also, certain modifications on the current screening method might be required to further improve the efficiency of selection.
Publisher
農業試驗所
Type
journal article
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