Not AvailableEighty five greengram accessions were evaluated against the pulse beetle, Callosobruchus maculatus
(F.) to find the sources of resistance under laboratory condition. Accessions which exhibited lesser
growth index (GI) during the preliminary ‘free choice’ test were further subjected to ‘force choice’ test
for confirmation of resistance. Though, no accession was found immune to infestation, yet showed
significant differences in terms of oviposition, developmental period, adult emergence and seed weight
loss. Three accessions viz, KM-12-10, KM-11-32 and KM-11-10 revealed lesser adult emergence (21.34,
30.64 and 34.92%, respectively), prolonged developmental period (32.21, 31.82 and 34.59 days,
respectively) and lesser index of suitability (0.041, 0.047 and 0.049, respectively) as compared to the
highly susceptible M1319B, which exhibited 84.05% survival, developmental period of 23.75 days, and
index of suitability 0.081. Correlation between GI and other growth parameters on the accessions
indicated that the GI had negative relationship with developmental period (-0.0987) and significant
positive relationship with adult emergence (0.985) and weight loss (0.959). Hence, these accessions
might be effectively used as promising donors for developing resistant varieties, and for reducing post
harvest losses.Not Availabl
