在高温环境中晚菊成花逆转的调控初探  

Preliminary Explorations on Floral Reversion of Autumn Flowering Chrysanthemum under High Temperature

作　　者：韦三立[1] 

机构地区：[1]中国农业大学生物学院,北京100094

出　　处：《北方园艺》2009年第6期199-200,共2页Northern Horticulture

摘　　要：夏季25～35℃高温环境,会导致某些晚菊品种花序的分化异常,个别植株出现滞育。当气温降至15～25℃范围内经3周后,在短日条件下部分供试材料可以形成营养枝条,分化出正常花序。对生长着异常花序的晚菊品种经摘心处理后,供试材料形成营养枝条,植株能够再次分化出正常花序。根据晚菊品种成花逆转的发生途径,可以将其分为自然发生成花逆转、人工辅助成花逆转2种类型。结果表明:某些晚菊品种的成花逆转过程,不仅会受到光周期的影响,同样也会受到温周期的影响。25-35℃ High-temperature in summer leads to the development of abnormal inflorescence of some autumn flowering chrysanthemum cultivars that were already different, some of which were in diapause. When the temperature decline 15-25℃ in short day condition within three weeks, experiment materials can form vegetative shoot and be differentiated to normal inflorescence. When pinching out to abnormal inflorescence autumn flowering chrysanthemum cultivars, with the temperature decline in autumn, experiment materials can form vegetative shoot and different normal inflorescence. The research demonstrates that the floral reversion process of some autumn flowering chrysanthemum cultivars was influenced by not only photoperiodism but also the thermoperiodism.

关 键 词：菊花 成花逆转 分化 柳芽 温周期现象 

分 类 号：S682.11[农业科学—观赏园艺]