Physical and chemical changes in developing strawberry fruits

摘要: Strawberry fruits of thevariety Red Gauntlet were harvested at 7 day intervals after petal fall. Changes in fruit weight, percentages survival on the plant, chlorophyll: carotenoid and anthocyanin, titratable acid, pH extracts sugar content measured. Also changes soluble total pectic polysaccharides alcoholinsoluble residues followed during development. Fruit growth was not exponential later stages falling rate correlated to softening. Net synthesis chlorophyll pigments took place up 28 days anthocyanin commenced 35 The berries increased with time acid concentrations slightly development, ripening fruits. The specific viscosity fell from There net polyuronide but neutral polysaccharide development amount insoluble became small relatively constant compared by 21 Fruits undergoing senescence lost almost all their polysaccharides. The developmental processes taking growing fruits, especially respect cell wall structure, relevance results storage are discussed.