Tolerance as Mechanism of Resistance to Helicoverpa armigera (Hub.) in Chickpea (Cicer arietinum Linn.)

    Sreelatha, E and Sharma, H C and Gowda, C L L (2018) Tolerance as Mechanism of Resistance to Helicoverpa armigera (Hub.) in Chickpea (Cicer arietinum Linn.). Trends in Biosciences, 11 (2). pp. 144-148.

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    Abstract

    To study the tolerance component of resistance in chickpea to pod borer, H. armigera, field experiment was conducted at ICRISAT, Patancheru. The loss in yield of 18 chickpea genotypes (ICC 12475, ICC 12476, ICC 12477, ICC 12478, ICC 12479, ICC 12490, ICC 14876, ICC 4918, ICC 12426, ICC 3137,ICC12491, ICC 12492, ICC 12493, ICC 12494, ICC 12495, ICC 12968, ICC 4973 and ICC 4962) was studied by comparing the grain yield under protected and unprotected crops. Under protected conditions except ICC 12494 and ICC 3137 all the genotypes were on par with the resistant check ICC 12475 for pod borer damage. Under unprotected conditions ICC 12479 (12.3%) and ICC 12493 (11.6%) were on par with the resistant check, ICC 12475. This study indicated presence of tolerance mechanism in chickpea to H. armigera damage. Reduction in grain yield was lowest in ICC 12475 followed by ICC 4918, ICC 12490, ICC 12493 and ICC 12476 indicating tolerance to pod borer damage. CC 12477 and ICC 12968 were highly tolerant as there was an increase in yield under infected conditions.The lines showing high and stable resistance to H. armigera can be used in chickpea improvement programs.

    Item Type: Article
    Divisions: Research Program : Asia
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Helicoverpa armigera, tolerance, mechanism of resistance, chickpea
    Subjects: Others > Crop Improvement
    Others > Helicoverpa
    Mandate crops > Chickpea
    Depositing User: Mr Ramesh K
    Date Deposited: 27 Aug 2018 09:37
    Last Modified: 27 Aug 2018 09:37
    URI: http://oar.icrisat.org/id/eprint/10841
    Official URL:
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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