Dwivedi, S L and Nigam, S N and Reddy, D V R and Reddy, A S and Ranga Rao, G V (1995) Progress in Breeding Groundnut Varieties Resistant to Peanut Bud Necrosis Virus and its Vector. In: Recent studies on peanut bud necrosis disease: proceedings, 20 Mar 1995, ICRISAT Asia Center.
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Abstract
Peanut bud necrosis disease (PBND), caused by peanut bud necrosis virus (PBNV), and transmitted by Thrips palmi is an important disease of groundnut in South and Southeast Asia. Several cultivated groundnut germplasm lines showed consistently low disease incidence under field conditions (field resistance). Eight accessions of wild Arachis species did not show disease under field conditions. Field resistance could be due to vector and/or to virus resistance. The current breeding strategy includes improving the level of resistance to thrips and PBNV, and combining them into superior agronomic backgrounds. Several high-yielding varieties with high levels of resistance to PBND have been developed. These varieties possess moderate resistance to the vector. Two of these, ICGV 86031 and JCGV 86388, show resistance to PBNV when mechanically sap-inoculated with low virus concentration (10-2). Considering the level of resistance to the vector and PBNV, it appears that further improvement in the level of resistance through conventional breeding may be difficult to achieve
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Mandate crops > Groundnut |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 07 Oct 2011 05:34 |
| Last Modified: | 27 Aug 2013 09:44 |
| URI: | http://oar.icrisat.org/id/eprint/2035 |
| Acknowledgement: | UNSPECIFIED |
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