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Host plant resistance to insect pests in pigeonpea: Potential and limitations

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Relation http://oar.icrisat.org/9253/
http://ils.nsseme.com/assets/LegumPerspect11.pdf
 
Title Host plant resistance to insect pests in pigeonpea:
Potential and limitations
 
Creator Sharma, H C
 
Subject Pigeonpea
Entomology
 
Description Host plant resistance to insects is
one of the components of pest management
in pigeonpea. Considerable progress has
been made in developing techniques to
screen for resistance to Helicoverpa armigera.
However, some of these techniques cannot
be used to evaluate material for resistance to
spotted pod borer, Maruca virtrata, pod fly,
Melanagromyza obtusa, pod wasp,
Tanaostigmodes cajaninae and the pod bugs,
Clavigralla spp. Genotypes with resistance to
H. armigera, M. vitrata, M. obtusa, and C.
chinensis have been identified, but the levels
of resistance are low to moderate in the
cultivated germplasm. However, high levels
of resistance have been identified against H.
amigera in wild relatives of pigeonpea.
Considerable information has been
generated on mechanisms of resistance to H.
armigera and M. vitrata, but there is limited
information on inheritance of resistance, and
the molecular markers associated with
resistance to insects. The progress in
transferring insect resistance into the
improved varieties has been limited, and
there is a need to introgress resistance genes
fromthe wild relatives into the culigen and
or develop pigeonpea cultivars expressing Bt
genes to confer resistance to pod borers.
Cultivars with moderate levels of resistance
in combination with other components of
pest management will play a major role in
increasing the productivity of pigeonpea.
 
Publisher International Legume Society (ILS)
 
Date 2016-01
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9253/1/Legume%20Perspectives%2024%20-%2029.pdf
Sharma, H C (2016) Host plant resistance to insect pests in pigeonpea: Potential and limitations. Legume Perspectives (11). pp. 24-29. ISSN 2340-1559