Effect of plant growth regulators on leaf biochemical characters and fruit yield components of bittergourd (Momordica charantia L.) cvs. MHBI-15 and Chaman Plus
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Society for Promotion of Horticulture
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Effect of plant growth regulators on leaf biochemical parameters (chlorophyll pigments, sugars, nitrate reductaseactivity, total phenols) and fruit yield bitter gourd (Momordica charantia L.) was studied. The experiment consistedof foliar treatment with three plant growth regulators, GA3 (20, 40 and 60ppm), NAA (50ppm) and CCC (100 and200ppm) in two bittergourd varieties, MHBI–15 and Chaman Plus at 45 days after sowing (DAS). Results revealedsignificant difference between treatments on chlorophyll, sugar, total phenol content as also on nitrate reductase activity. Foliar application of CCC (200ppm) recorded maximum amount of total sugars (18.03%over Control), totalphenol content (10.93%) as also nitrate reductase activity (16.12%). Among the treatments, application of GA3(20ppm) recorded maximum chlorophyll content (18.03% over Control). Highest increase in mean fruit yield over Control was recorded with application of GA3 (20ppm) (39.88%), followed by CCC (200ppm) (34.15%) in both thecultivars.
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