บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Growth regulator effects on retention of quality of stored citrus fruits.

El-Otmani, M.; Coggins, C. W., Jr.;

Scientia Horticulturae Year: 1991 Vol: 45 Issue: 3-4 Pages: 261-272 Ref: 31 ref.

1991

บทคัดย่อ

Growth regulator effects on retention of quality of stored citrus fruits.

A 3-year study was initiated in the Souss valley of S. Morocco in 1988 to determine the effects of 16 p.p.m. 2,4-D and 10 p.p.m. GA3 on the quality of on-tree-stored and cold-stored fruits of clementines and navel orange cv. Washington. Treatments were applied at fruit colour break as whole tree sprays, and fruits were either analysed immediately after harvest or stored at 4 deg C and 85% RH and analysed after 4 and 8 weeks of storage. Regardless of the cultivar, GA3 alone or in combination with 2,4-D significantly slowed the rate of rind colour change and the rate of rind softening, both on the tree and postharvest. However, the rate of change in colour and firmness of the rind on the tree and postharvest was cultivar dependent. When used alone, 2,4-D had no effect on these factors. No growth regulator effects were noted on weight loss, extractable juice, juice titratable acidity (TA) and total soluble solids (TSS), or the TSS:TA ratio. It is concluded that GA3 delays senescence in the rind without affecting internal fruit quality.