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中国农学通报 ›› 2014, Vol. 30 ›› Issue (25): 166-170.doi: 10.11924/j.issn.1000-6850.2014-0639

• 林学 园艺 园林 • 上一篇    下一篇

低温处理对蝴蝶兰生长发育及叶绿素荧光参数的影响

丁朋松 张英杰 郭文姣 孙纪霞 刘学庆   

  • 收稿日期:2014-03-11 修回日期:2014-03-28 出版日期:2014-09-05 发布日期:2014-09-05
  • 基金资助:
    山东省良种产业化项目[鲁农良种字(2010)10号];烟台市重大课题攻关项目“深红色大花型蝴蝶兰新品种选育及优质高效栽培技术研究”(2012051)。

Effects of Low Temperature on Vegetative Growth, Reproductive Growth and ChlorophyⅡ Fluorescence Parameter in Phalaenopsis Orchids

  • Received:2014-03-11 Revised:2014-03-28 Online:2014-09-05 Published:2014-09-05

摘要: 为研究温度对蝴蝶兰营养生长和生殖生长的影响,以3个蝴蝶兰品种为试验材料,采用叶绿素荧光测量方法和统计学方法,对不同温度处理下蝴蝶兰叶片生长情况和花梗抽梗情况进行研究。研究表明:(1)蝴蝶兰花芽分化需要经历春化作用,26/18℃(日/夜)处理处理可使3个品种在1个月内启动花芽分化,而29/21℃(日/夜)处理的对照组均无抽梗。(2)同时,生殖生长抑制营养生长,3个品种的成熟叶片平均长度均小于对照组。(3)低温处理导致Fv/Fm降低,Fo增高,叶绿素荧光参数能敏感地反映低温引起植株光合机构变化的情况,可间接地作为快速鉴定蝴蝶兰花芽分化的指标。

关键词: 产量, 产量

Abstract: To study the influence of temperature on the vegetative growth and reproductive growth of moth orchid (Phalaenopsis amabilis) cultivars, 3 cultivars were tested, by setting different temperature treatments to measure the growth and chlorophyⅡfluorescence parameter changes in leaf and percent flower stalks bored. The study indicated that: (1) The floral differentiation of moth orchid needed the vernalization and the flower bud initiation of the three cultivars started within one month if the temperature was 26/18℃(day/night). Control group with 29/21℃(day/ night) treatment did not shoot the flower stalk. (2) Moreover, the reproductive growth inhibited the vegetative growth, and the average length of ripe leaves of the 3 cultivars was all less than the control group. (3) The low temperature treatment could lead to the decreasing of levels of Fv/Fm, and the increasing of levels of Fo. ChlorophyⅡfluorescence parameters could reflect sensitively the changes of photosynthetic apparatus caused by low temperature. Fv/Fm and Fo could be the indicators testing the flower differentiation rapidly.