Vol. 11, Issue 8 (2022)

Author(s):
L Sevathi, B Ramesh Babu, P Vinayakumar Reddy and DR Salomi Suneetha

Abstract:
An experiment was carried out during the rabi season, 2021-2022, at Horticultural Research Station, Venkataramannagudem, West Godavari District, Andhra Pradesh. The experiment was laid in Randomized Block Design with 12 treatments with three replications. The fruits of jackfruit were sprayed with different plant growth regulators viz., GA₃ 50 ppm (T₁), GA₃ 100 ppm (T₂), 6-BAP 50 ppm (T₃), 6-BAP 100 ppm (T₄), NAA 50 ppm (T₅), NAA 100 ppm (T₆) and chemicals viz., CaCl₂ @ 1% (T₇), CaCl₂ @ 2% (T₈), Ca (NO₃)₂ @ 1% (T₉), Ca (NO₃)₂ @ 2% (T₁₀) and control (Water spray) T₁₁, (No spray) T₁₂ at 90 and 115 days after fruit set. After harvesting of fruits, flakes were pre-treated with 0.25% ascorbic acid and packed in 200 gauge polypropylene bag and then stored at refrigerator condition (3±1 ⁰C). The results revealed that pre-harvest application of CaCl₂ 2% (T₈) or GA₃ 50 ppm (T₁) was found to be effective for increasing total soluble solids, total sugar, reducing sugar, non-reducing sugar, ascorbic acid, β- carotene content, pectin content, calcium content, protein content, antioxidant activity, shelf life and overall acceptability with minimum physiological loss in weight, decay loss, titratable acidity, the fibre content of jackfruit flakes at different days of storage.