Record Details

Progress in Breeding Groundnut Varieties Resistant to Peanut Bud Necrosis Virus and its Vector

OAR@ICRISAT

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Relation http://oar.icrisat.org/2035/
 
Title Progress in Breeding Groundnut Varieties Resistant
to Peanut Bud Necrosis Virus and its Vector
 
Creator Dwivedi, S L
Nigam, S N
Reddy, D V R
Reddy, A S
Ranga Rao, G V
 
Subject Groundnut
 
Description 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
 
Date 1995
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/2035/1/Progress_in_Breeding_Groundnut_Varieties_35-40_1995.pdf
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.