Biological and genetic analysis of rice germplasm with resistance to brown planthopper in the collection of Indira Gandhi Agricultural University
2001
Pophaly, D.J. | Gupta, A.K. | Rana, D.K. and Verma, V.K.
The rice germplasm of the Indira Gandhi Agricultural University, Raipur (Madhya Pradesh), India, is a unique germplasm collection. This is the world's second largest collection of rice germplasm, which was collected from 1971 to 1988, but systematic studies for locating genes with resistance to various insect pests started only recently. From 1992 to 1998, about 7,500 rice accessions were evaluated against brown planthopper (BPH, Nilaparvata lugens) in the glasshouse where this insect in being mass-reared throughout the year on potted TN1 rice plants. So far, 327 rice accessions were identified with resistance to BPH on a 0-9 internationally accepted plant damage score scale (Entomology Annual Progress Report 1992 to 1998), and 28 cultivars exhibited plant damage scores between 0 and 1. These are being considered as potential donors for genetic improvement programs.
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