Studies On Postharvest Preservative Methods Of Cut Flower Of Herbacious Peony

Herbacious peonies (Paeonia lactifflora) are traditional plants native to China. The fresh-cut peonies production has been one of the most important branches in peony commercial production which basis on property cultivars and can be insured by the integrative post-harvest technolegy. In my study, 103 traditional cultivars were studied to determine which cultivars would produce good fresh-cut flowers. 15 traditional cultivars were studied on the growth progress of herbaceous buds. A trial was established of the two cultivars 'Tao Hua Fei Xue' and 'Qi Hua Lu Shuang' to ascertain the property cut-stage, vase solution and pre-treatment solution. The main results were as follows:1.103 cultivars were classified into four grads according to the color , parameter,longevity in vasing .density of flower,etc. 17 cultivars in the first grade with wonderful color and form ,such as 'TaoHua FeiXue', 'Qing Wen', 'LanTian PiaoXiang' and so on, were selected.2.The growth progress of the buds can be separated into two types: the chapped-type and the non-chapped type . Each type includes seven stages. The non-chapped type include tight bud, unstuck petal bud, colour-changing bud, soft bud, initial opening, full opening and wilting; The chapped-type include tight bud, dissilient bud, unstuck top bud, unstuck bud, initial opening, full opening and wilting. The configuration and the bulk of every stage were described.3.There is no significant difference in cut flower quality as cut in unstuck petal bud, colour-changing bud or soft bud for 'Qi Hua Lu Shuang' when storge for short time; When sorge for long time , colour-changing bud is the most fessible cut stage for ' Qi Hua Lu Shuang'. For 'Tao Hua Fei Xue', colour-changing bud is the most fessible cut stage.