บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Relationships between alpha-farnesene, ethylene production and superficial scald development of apples.

Watkins, C. B.; Barden, C. L.; Bramlage, W. J.;

Acta Horticulturae Year: 1993 Issue: No. 343 Pages: 155-160 Ref: 8 ref.

1993

บทคัดย่อ

Relationships between alpha-farnesene, ethylene production and superficial scald development of apples.

The pre- and postharvest factors affecting development of superficial scald in apple fruits with emphasis on the association between alpha -farnesene and ethylene production were studied. The effect of harvesting date over 3 years was studied using Cortland and Delicious apple fruits. The effects of preharvest ethephon treatments (0, 250 or 500 p.p.m.) and postharvest ethephon treatments (500 p.p.m.) were studied using Cortland apple fruits. The effect of storage temperature (0, 4, 10, 15 and 20 deg C) for 30, 20, 10, 7.5 and 5 weeks, respectively, and the effect of intermittent warming were studied using Cortland and Granny Smith apple fruits. Weekly harvests of Cortland and Delicious fruits resulted in increasing ethylene production rates and increasing accumulation of alpha -farnesene and conjugated trienes at harvest, but decreasing scald development after storage. Ethephon applications to preclimacteric Cortland fruits greatly increased synthesis of ethylene, alpha -farnesene and conjugated trienes before harvest. Production of ethylene and alpha -farnesene were stimulated by intermittent warming during storage at 0 deg , but scald was suppressed by it. The association of alpha -farnesene and scald development is discussed in relation to these results.