Biochemical basis of resistance against thrips (Scirtothrips dorsalis Hood) infesting chilli (Capsicum annum L.)

Abstract

Investigations were carried out on “Biochemical basis of resistance against thrips (Scirtothrips dorsalis Hood) infesting chilli [Capsicum annum L.]” at Instructional Farm, ASPEE College of Horticulture and Forestry, Regional Horticultural Research Station, Navsari Agricultural University, Navsari during 2018-19. The results revealed that, maximum moisture content (90.86 %) was recorded in chilli variety GVC-101 which harboured moderate thrips population (4.25/3 leaves). The lowest ash content (33.45%) was recorded in GAVC-112 which in turn had moderate thrips population (4.70/3 leaves). Significantly minimum total soluble sugar content (3.60 %), minimum reducing sugar content (1.02 %), maximum non-reducing sugar (2.58 %), maximum total phenol (0.62 ppm), minimum nitrogen (0.15 %), minimum protein (0.90 %), maximum chlorophyll A (5.21 mg/g), maximum chlorophyll B (10.53 mg/g) and maximum chlorophyll total (15.74 mg/g) were recorded in GVC-111 which in turn had moderate thrips population (3.34/3 leaves).