Journal of FARM SCIENCES, Vol 30, No 4 (2017)

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Clonal variation in Pongamia pinnata for resistance to gall midge, Asphondylia pongamiae (Diptera: Cecidomyiidae): Important biofuel tree

USHA RAJU KABBER, JAVAREGOWDA *

Abstract


Clonal variation for leaf gall infestation in Pongamia pinnata for resistance/susceptibility to gall midge, Asphondyliapongamiae (Diptera: Cecidomyiidae) was assessed during the year 2014-15 at college of forestry, Sirsi. Eleven clonesbelonging to Hassan provenance of Karnataka have been evaluated. The clones, Hariharapura, Sathenahalli, Muddanahalliand Baragaru were identified as Moderately Resistant (MR) and Karekere - LT was identified as Moderately Susceptible(MS). Clones Aladahalli, Karekare-1, Madenuru-2, Karekare, Alldahalli-1 and Madenuru-1 was identified as susceptiblewhen compared to local check seedlings based on number of galls per leaf, per cent leaf infested with gall and growthperformance. Among eleven clones evaluated none of the clones were found to be resistant.

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