บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Postharvest treatments to increase water uptake and the vase life of Leptospermum scoparium Forst.

Burge, G. K.; Bicknell, R. A.; Dobson, B. G.;

New Zealand Journal of Crop and Horticultural Science Year: 1996 Vol: 24 Issue: 4 Pages: 371-378 Ref: 9 ref.

1996

บทคัดย่อ

Postharvest treatments to increase water uptake and the vase life of Leptospermum scoparium Forst.

Various postharvest stem treatments and vase solutions were assessed to determine the basis of the short vase-life of cut L. scoparium flowers. The cultivars used were Crimson Glory and Rosy Morn. Stem recutting or heat treatments had little effect on water uptake or vase life. 8-Hydroxyquinoline sulfate (HQS) delayed the decline in water uptake and leaf moisture content and extended vase life by 1-2 days compared with controls (held in distilled water). Cycloheximide (CHI) also extended vase life by 2 days, although the water uptake pattern and changes in leaf moisture content were different from those observed with HQS. Silver thiosulfate pulse treatments had little effect on flower senescence. Sucrose reduced the rate of flower senescence and when combined with HQS extended vase life from 3 to 9 days. This suggests that the short vase-life of L. scoparium is the result of both the sugar status and water relations of the cut stems.