บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

The effect of reducing production water availability on the post-production quality of potted miniature roses (Rosa x hybrida)

Michelle H. Williams, Eva Rosenqvist and Marianne Buchhave

Postharvest Biology and Technology Vol: 18 Issue: 2 March 2000, Pages 143-150.

2000

บทคัดย่อ

The effect of reducing production water availability on the post-production quality of potted miniature roses (Rosa×hybrida)

Water deficit is a major problem during the post-production life of potted plants. This study evaluates the effect of reducing water availability on the quality of rose plants and if it is possible to acclimatise rose plants to subsequent water deficit conditions. Two cultivars of potted miniature roses (Charming and Bianca Parade®) were produced under four water availability treatments. Control plants were watered so that water availability equalled evapotranspirational loss. The cyclic water deficit treatment consisted of three 10 day cycles, each cycle included 4¯5 days without water followed by a recovery phase during which the plants were watered as for the controls. There were two long term steady state water deficit treatments at approximately 60 and 75% of the control water availability. At flowering the plants were transferred to an evaluation room, half were watered adequately and the remaining plants were wilted and then watered adequately. Plant performance was evaluated over a 25 day period. The response of plants to both production and post-production water availability was cultivar-dependent. Plants grown with cyclic water availability tolerated subsequent water stress better than plants produced with a constant supply of water, irrespective of whether the constant supply of water was adequate or not.