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当前位置: 首页 > 文章 > 光周期对秋菊品种‘神马’花芽分化和开花的影响 园艺学报 2007,34 (4) 965-972
Position: Home > Articles > Effects of Photoperiod on Floral Bud Differentiation and Flowering of Chrysanthemum morifolium Ramat. 'Jinba’ Acta Horticulturae Sinica 2007,34 (4) 965-972

光周期对秋菊品种‘神马’花芽分化和开花的影响

作  者：
杨娜;郭维明;陈发棣;房伟民
单  位：
南京农业大学生命科学学院;南京农业大学园艺学院
关键词：
菊;光周期;花芽分化;生长;开花
摘  要：
研究了不同光周期处理下秋菊‘神马’花芽分化的进程和生长开花状况。扫描电镜等结果表明,花序由顶端生长点分化而成,分为未分化期,花芽分化起始期,总苞鳞片分化初期及终期,小花原基分化初期及终期,花冠形成初期、中期和后期9个时期。分化顺序是向心的,由外而内。雌雄蕊的发育与小花花冠分化同时进行。分化进程历时23d,其中花序分化与小花分化相比,历时相对较长。短日处理植株花芽分化和花发育进程整齐均一,生长正常;短日加长日处理花芽分化无规律,开花延迟,产生畸形花;长日处理不能诱导开花。
译  名：
Effects of Photoperiod on Floral Bud Differentiation and Flowering of Chrysanthemum morifolium Ramat. 'Jinba’
作  者：
YANG Na1, GUO Wei-ming2, CHEN Fa-di2, and FANG Wei-min2(1College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;2College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China)
关键词：
Chrysanthemum; Photoperiod; Floral bud differentiation; Growth; Flowering
摘  要：
The process of floral bud differentiation, growth and floral development of Chrysanthemum morifolium Ramat.'Jinba’ with different photoperiod treatments were studied in this experiment. The results showed that the inflorescence differentiates from the apical growing point, the whole process could be divided into nine stages: the vegetative growing stage, initiative stage of floral bud differentiation, the initial and final stage of involucre primordia differentiation, the initial and final stage of floret primordia differentiation and the initial, metaphase and final stage of crown formation. The order of inflorescence differentiation is centripetal, i.e., from the outside to the inside. The differentiation of stamen and gynoecium accompanied that of floret crown. It took 23 days in the whole bud differentiation, the inflorescence primordia differentiation took more days than that of floret. Bud differentiation of plants under short day treatment were uniform and normal. However, those under short-long day treatments differed in individuals, delayed flowering and abnormal flowers were observed. Plants under long day treatment failed to bloom.

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