Indian Institute of Horticultural Research, Hessaraghatta, Bangalore 560 089
The growth of berries followed a double sigmoid curve and a non-climacteric respiration pattern. Berry weight, density, skin carotenoids, TSS, T.S.S.: acid ratio, glucose, fructose, sucrose, total soluble amino acids, dry matter, crude protein phosphorous, potassium contents increased; skin chlorophyll, acidity, alcohol insoluble solids, starch and calcium contents decreased; and juice pH, iron and magnesium contents recorded very little changes during ripening. Berries at 60 days had more FBPase, ME, pyruvate decarboxylase, MDH and GDH, and less PE and G6Pase activity than ripe stage. Cellulase, PG, PPO, hexokinase, PFK, PK and PEPC activity recorded increase during early ripening stages and decline in ripe berry.
