| 植株营养生长天数对切花菊花芽分化与品质的影响 |
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| 引用本文： | 姜贝贝,房伟民,陈发棣,赵宏波,顾俊杰.植株营养生长天数对切花菊花芽分化与品质的影响[J].中国农业科学,2008,41(6):1755-1760. |
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| 作者姓名： | 姜贝贝 房伟民 陈发棣 赵宏波 顾俊杰 |
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| 作者单位： | [1]南京农业大学园艺学院,南京210095 [2]上海鲜花港企业发展有限公司,上海201303 |
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| 基金项目： | 江苏省高技术研究发展计划项目
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江苏省科技攻关计划
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江苏省农业三项工程项目
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上海市科技攻关计划 |
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| 摘 要： | 【目的】研究切花菊品种‘神马’短日处理时植株营养生长天数对其花芽分化及切花品质的影响，为高品质切花菊的生产提供指导。【方法】对通过分期扦插、分期定植获得的不同营养生长天数植株进行短日诱导，观察花芽分化和开花进程，测量品质指标。【结果】营养生长天数越少花芽起始越迟。营养生长天数为0 d（定植当天短日处理）的植株从成花诱导到花芽起始需18 d，显著长于成花诱导的最短反应时间4 d。植株营养生长天数越少，完成花芽分化所需的时间越长、花期越迟、切花品质越差。【结论】植株营养生长天数对切花菊‘神马’花芽分化与品质有显著影响。4 d是‘神马’对成花诱导的最短反应时间，21 d是‘神马’达到成熟的成花感受态的营养生长天数。要获得符合出口标准的高品质切花，植株营养生长天数要达到28 d以上才能进行成花诱导。
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| 关 键 词： | 切花菊 植株营养生长天数 花芽分化 切花品质 |
| 收稿时间： | 2007-2-1 |
Effect of Vegetative Growth Days on Flower Bud Differentiation and Quality of Cut Chrysanthemum |
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| JIANG Bei-bei,FANG Wei-min,CHEN Fa-di,ZHAO Hong-bo,GU Jun-jie.Effect of Vegetative Growth Days on Flower Bud Differentiation and Quality of Cut Chrysanthemum[J].Scientia Agricultura Sinica,2008,41(6):1755-1760. |
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| Authors: | JIANG Bei-bei FANG Wei-min CHEN Fa-di ZHAO Hong-bo GU Jun-jie |
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| Abstract: | 【Objective】Effects of growth age on flower bud differentiation and quality of cut Chrysanthemum cv. ‘Jinba’ (Dendranthema×grandiflorum Ramat.) were studied.【Method】In order to study the effects of growth age on flower bud differentiation and quality, plants of different growth ages were obtained by the way of cutting and planting at different time, and all plants started short-day treatment at the same time to induce flower bud differentiation.【Result】The results showed that, growth age had great effects on flower bud initiation of cut Chrysanthemum, the younger growth age was, the later the flower bud initiation. For growth age of 0 day treatment, 18 days was essential from flower bud induction to bud initiation, which distinctly longer than 4 days which was the shortest response time to induction. Growth age had effects on time required of ‘Jinba’ from flower bud induction to bud initiation (32-38 days). The younger growth age of the ‘Jinba’ was, the longer time required from flower bud initiation to finished differentiation, and the later of bloom time. Growth age also had great effects on quality of cut chrysanthemum, the younger growth age was, the poorer quality of flower.【Conclusion】The younger growth age of ‘Jinba’ was, the longer time required from induction to flower bud initiation, the longer time required from flower bud initiation to finish differentiation, and the later of bloom time. 4 days was the shortest time of responding to induction, and 21 days was the growth age of arriving mature floral competence state of ‘Jinba’. To obtain good quality cutting flower according to the standard for export, growth age must arrive 28 days when begin flower bud induction. |
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| Keywords: | Chrysanthemum Grow age Flower bud differentiation quality of cut flower |
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