Cross-virulence of Nephotettix virescens (Homoptera: Cicadellidae) Biotypes Among Some Rice Cultivars with the Same Major-resistance Gene
- 1 December 1985
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 14 (6) , 696-700
- https://doi.org/10.1093/ee/14.6.696
Abstract
By rearing Nephotettix virescens (Distant) populations on resistant ‘Pankhari 203’ and ‘IR8’ for 10 generations, colonies virulent to the resistant cultivars, as indicated by plant damage ratings, N. virescens survival, and population growth, were selected. Testing the colonies on cultivars that have the same major gene for resistance as the cultivar upon which they were selected indicated increased virulence on some cultivars but not on others. Minor genes play an important role in determining the degree of cross virulence of N. virescens on different cultivars.This publication has 2 references indexed in Scilit:
- Feeding, Development, and Tungro Virus Transmission by the Green Leafhopper, Nephotettix virescens (Distant) (Homoptera: Cicadellidae) After Selection on Resistant Rice CultivarsEnvironmental Entomology, 1984
- Selection of Biotype Populations 2 and 3 of Nilaparvata lugens1 by Exposure to Resistant Rice VarietiesEnvironmental Entomology, 1982