2014年11月
Identification of high long-day leaf number cultivars and prevention of premature budding by cold pre-treatment for fine control of flowering in summer-to-autumn-flowering chrysanthemum (Chrysanthemum morifolium Ramat.)
JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY
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- ,
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- 巻
- 89
- 号
- 6
- 開始ページ
- 647
- 終了ページ
- 654
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1080/14620316.2014.11513133
- 出版者・発行元
- HEADLEY BROTHERS LTD
When maintained continuously under long-day (non-inductive) photoperiodic conditions, chrysanthemum (Chrysanthemum morifolium Ramat.), a short-day plant, eventually initiates flower buds. This floral initiation termed 'premature budding' in commercial chrysanthemum production. Premature budding, which reduces cut-flower quality, is often observed in summer-to-autumn-flowering cultivars. The timing of flower initiation under non-inductive photoperiods depends on the number of leaves that a plant has formed below the terminal flower bud. This leaf number indicates whether a cultivar will form flower buds prematurely during a non-inductive photoperiod. Two summer-flowering, ten summer-to-autumn-flowering, and six autumn-flowering chrysanthemum cultivars were grown under controlled conditions to measure the number of leaves produced under a non-inductive photoperiod with a night-break. The average number of leaves per plant ranged from 13.8 for 'Tasogare', to 69.1 for 'Furamu'. These data can be used to identify cultivars that will exhibit minimal flower-bud formation under night-break conditions. The numbers of leaves were greater in plants subjected to a 12-week cold treatment prior to planting, suggesting that premature budding could be inhibited by a prolonged cold pre-treatment. We also examined whether the cold treatment of stock plants was an effective means to prevent premature budding. The incidence of premature budding was reduced in rooted cuttings obtained from cold-treated stock plants of the summer-to-autumn-flowering cultivars 'Nagano Queen', 'Ariesu', 'Sei-un', 'Oruka', and 'Floral Yuka'. Without a cold treatment, cuttings from these cultivars showed premature budding. This result suggests that a prolonged cold pre-treatment of stock plants could prevent both premature budding and reduced cut-flower quality in summer-to-autumn-flowering chrysanthemum cultivars.
- リンク情報
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- DOI
- https://doi.org/10.1080/14620316.2014.11513133
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000345496800008&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84908679386&origin=inward
- ID情報
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- DOI : 10.1080/14620316.2014.11513133
- ISSN : 1462-0316
- SCOPUS ID : 84908679386
- Web of Science ID : WOS:000345496800008