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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(12): 3899-3907
DOI: https://doi.org/10.20546/ijcmas.2017.612.450


Screening of Pigeonpea Genotypes against Webbing Caterpillar, Maruca vitrata Geyer and Gram Pod Borer, Helicoverpa armigera Hubner
Zadda Kavitha1* and C. Vijayaraghavan2
1National Pulses Research Centre, Vamban, Pudukottai, Tamil Nadu, India
2Agricultural College and Research Institute, Kudumiyanmalai, Tamil Nadu Agricultural University, Tamil Nadu, India
*Corresponding author
Abstract:

A resistance screening study was conducted under field conditions at National Pulses Research Centre, Vamban from 2013 to 2015 to identify the sources of resistance in pigeonpea to the spotted pod borer, Maruca vitrata and gram pod borer, Helicoverpa armigera. Based on the pest susceptibility index, entries were categorized in to various resistant categories. Among the 145 nos. of entries screened, nine entries i.e., ICP 11007, H 23, BAHAR, DA 322, GR 28, ICP 49114, ICP 11957, SMR 1693158, BRG–10–02 were promising by exhibiting stable resistant reaction to M. vitrata. Seventeen entries showed resistance consistently to H. armigera during all the three years. In case of M. vitrata, minimum pest susceptibility index (PSI) of 2.0 was noted in ICP 11957 followed by 2.3 in SMR 1693158 and 2.7 in BRG-10-02, Bahar and H 23. For H. armigera, less PSI was noted in CORG 9900134, H 23, JKE 110, GR 28, WRG 42, ICP 11957 and ICPL 8719 (2.3). The PSI of 2.7 was recorded in the entries, ICP 10175 and RVKT 261. Less pest susceptibility index in an entry indicates high resistance levels and hence, the above entries with less pest susceptibility indexes may be used as resistant donors in the breeding programme. Pigeonpea entries found to be resistant to both the pod borers were ICP 11007, H 23, DA 322, GR 28, ICP 49114, ICP 11957 and BRG-10-02.


Keywords: Pigeonpea, Maruca vitrata, Helicoverpa armigera, Screening, Resistant sources.
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How to cite this article:

Zadda Kavitha and Vijayaraghavan, C. 2017. Screening of Pigeonpea Genotypes against Webbing Caterpillar, Maruca vitrata Geyer and Gram Pod Borer, Helicoverpa armigera Hubner.Int.J.Curr.Microbiol.App.Sci. 6(12): 3899-3907. doi: https://doi.org/10.20546/ijcmas.2017.612.450