Abstract
Studies were conducted to know the influence of bio-chemical constituents in potato varieties on insect pests in two different locations in the West and East Godavari Districts of Andhra Pradesh. Bio-chemical parameters viz., moisture content (%), sugars (%), protein (mg/100g) and phenol content (mg/100g) were estimated from eight different varieties of potato viz., Kufri Badshah, Kufri Chandramukhi, Kufri Jyoti, Kufri Khyati, Kufri himalini, Kufri surya, Kufri chipsona-3 and Kufri Phukraj grown in two locations (L1 and L2). Results revealed highest phenol content in the variety Kufri Badshah (91.10 mg/100g) in L1, Kufri Himalini variety (86.28 mg/100g) in L2 and both these varieties were significantly negatively correlated with insect pest’s incidence. Subsequently, other bio-chemical parameters viz., moisture content, sugars [reducing and total] and protein content were significantly positively correlated with insect pest’s incidence in all the eight varieties in both the locations. Consequently Kufri Badshah in L1 and Kufri Himalini in L2 had less pest incidence which might be due to their bio-chemical composition
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