บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Relationship between production of ethylene and alpha -farnesene in apples, and how it is influenced by the timing of diphenylamine treatment.

Golding, J. B.; McGlasson, W. B.; Wyllie, S. G.;

Postharvest Biology and Technology Year: 2001 Vol: 21 Issue: 2 Pages: 225-233 Ref: 15 ref.

2000

บทคัดย่อ

Relationship between production of ethylene and alpha -farnesene in apples, and how it is influenced by the timing of diphenylamine treatment.

The relationship between ethylene and peel alpha -farnesene concentrations was examined by applying diphenylamine (DPA) and the ethylene analogue, propylene at varying times after harvest to superficial scald (scald) susceptible Granny Smith apples stored at 10 deg C. Delaying DPA application after harvest had no large effect on ethylene or on peel alpha -farnesene production. Propylene advanced fruit ripening and promoted an increase in peel alpha -farnesene concentration before endogenous internal ethylene production, suggesting that ethylene has an important regulatory role in alpha -farnesene production, but their biosynthetic pathways are controlled independently. The effect of delayed DPA application (4 and 7 days after harvest) on the relationship between ethylene and peel alpha -farnesene was further examined at both a scald-inducing temperature (0 deg C) and a non-scald-inducing temperature (10 deg C) with Granny Smith and the scald resistant Crofton cultivar. Similarly a delayed DPA ap

plication had only minor effects on internal ethylene and peel alpha -farnesene concentrations. The relationship between internal ethylene and peel alpha -farnesene concentration was dependent on storage temperature, and the type of relationship was independent of cultivar. However, the magnitude of the relationship between cultivars was significantly different (Granny Smith produced significantly more alpha -farnesene than Crofton) and may be related to scald development.