ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Relation between ABA application and fruit quality of 'Pionnier' grape (vitis sp.).

Kondo, S.; Masuda, E.; Inoue, K.;

Acta Horticulturae Year: 1998 Issue: No. 464 Pages: 35-40 Ref: 16 ref.

1998

บทคัดย่อ

In trials in Hiroshima, Japan, in 1995, grape berries were dipped in a 500 ppm (+)-s-ABA solution 57 days after full bloom (DAFB) (before colouring) or 67 DAFB (beginning of colouring). In untreated control berries, endogenous ABA content in the skin of grape berries increased gradually from 26 to 54 DAFB, and then decreased slightly until harvest (90 DAFB) and also during 42 days' storage at 1 deg C. At the same time, t-ABA content in the skin increased gradually from 26 to 61 DAFB, and then decreased slightly until harvest after which its level increased dramatically after 42 days' storage at 1 deg C. The ABA contents (free and conjugated) in the skin of ABA-treated berries were higher than those in controls. ABA application on both dates increased the phenylalanine ammonia-lyase activity and anthocyanin concentration of the peel. ABA application at 67 DAFB increased the glucose and fructose contents of berries at early harvest (76 DAFB) compared to those of controls, but contents at the late

harvest date (90 DAFB) were almost equivalent. The results suggest that ABA application at the beginning of coloring advances the maturation of Pionnier grape berries.