杭州花圃种植2年的切花夏菊夏黄一号,在今年杭州地区从6月初到7月底连续50多天干旱少雨的特殊天气情况下,大批花朵在露色至初开时就停止生长,花瓣紧缩,不少初开夏花干枯死亡,喷水降温反而使缩花花色发暗,不久也自然死去。为解决高温下切花菊缩花的难题,我们分别用赤霉素和卅烷醇对缩花进行处理。经过13天观察,缩花 Hangzhou flowerbed planted 2 years of cut flowers summer Xia Xiahuang No. 1, this year in Hangzhou area from early June to the end of July for more than 50 days of dry and rainy special weather conditions, a large number of flowers in the shade to the early start to stop growing petals Tightness, many early summer dry death, spray cooling to make the flower color shrink dark, and soon died naturally. In order to solve the problem of cut flowers and flowers at high temperature, we treated them with gibberellins and stilbenesol respectively. After 13 days of observation, constriction