บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Distribution of sugars in tulip flower parts as affected by Ethrel and GA3 in the holding solution.

Lukaszewska, A. J.;

Acta Horticulturae Year: 1995 Issue: No. 405 Pages: 351-355 Ref: 10 ref.

1995

บทคัดย่อ

Distribution of sugars in tulip flower parts as affected by Ethrel and GA3 in the holding solution.

 

Keeping cut flowers of tulip cv. Apeldoorn in a solution containing the preservative 8HQC (200 ppm) + 4% sucrose had no effect on compared with keeping them in distilled water but resulted in substantial growth of the pistil, especially if GA3 was also included in the holding solution. Ethephon reduced stem elongation, pistil growth and petal length. Including ethephon and GA3 in the preservative solution improved cut flower quality. The content of total soluble and reducing sugars fell in all flower parts (tepals, pistils, shoot and leaves) of control flowers during 6 days of vase life. Exogenous sucrose was mainly translocated to the upper stem and leaves. Tepals were the least metabolically active and their reducing sugar content decreased even when tulips were held in preservative solution. On a DM basis, ethephon, more than GA3, promoted sugar accumulation in tepals and pistils. However, the absolute soluble sugar content was highest in the pistils of the GA3-fed flowers.