บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Relationships between ethylene, abscisic acid and quality during postharvest storage of `Granny Smith' apples

I. Lara and M. Vendrell

Postharvest Biology and Technology Vol: 13 Issue: 1 Pages: 11-18.

1998

บทคัดย่อ

Relationships between ethylene, abscisic acid and quality during postharvest storage of `Granny Smith' apples

Apple fruits (Malus domestica Borkh L. cv. Granny Smith) were harvested at commercial maturity and immediately placed at either 1 or 20°C. Significant differences were found in ethylene biosynthesis, endogenous abscisic acid (ABA) levels and quality parameters. Cold storage strongly inhibited ACC and MACC accumulation, suggesting that ACC synthase was inhibited at low temperature. Contrarily, cold storage significantly stimulated ethylene forming capacity (EFC) in the peel, whereas the pulp of chilled fruit showed higher EFC as compared to unchilled fruit only after three months' storage. ABA levels were significantly higher in the peel than in the pulp tissue. In the peel, chilling-induced ABA accumulation was observed during the first month. The possible roles of cold-induced ABA accumulation as a factor associated with high rates of ethylene biosynthesis after rewarming in `Granny Smith' apples, and of endogenous ABA content as an indicator of storage potential, are discussed.