Biochemical basis of resistance in soybean germplasm against tobacco caterpillar, Spodoptera litura (Fabricius)

Abstract

Chlorophyll content in the studied germplasms ranged from 21.20 to 54.52. Highest chlorophyll content was recorded in NRC 271 (54.52) and Least chlorophyll content was seen in MACS 1756 (21.20). The correlational studies between Chlorophyll (SPAD) and per cent leaf damage revealed that there is significant and positive correlation (r=0.711**).Phenol is one of the important factors that offer resistance to germplasms against different insects. Phenol content in the studied germplasms ranged from DS 1547 (0.08mg/g) to VLS 89 (0.35 mg/g). The correlational studies between phenol and per cent leaf damage revealed that there was significant and highly negative correlation (r = -0.846**)