| 短日照处理天数对一品红开花和观赏品质的影响 |
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| 引用本文： | 孙兆法,韩明三,翟晓灵,吴稚斐,于遒功,薛继岗,陈莉.短日照处理天数对一品红开花和观赏品质的影响[J].园艺学报,2006,33(3):583-586. |
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| 作者姓名： | 孙兆法 韩明三 翟晓灵 吴稚斐 于遒功 薛继岗 陈莉 |
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| 作者单位： | ( 青岛市农业科学院花卉研究所, 山东青岛266100; 青岛市园林环卫技术学校, 山东青岛266002) |
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| 基金项目： | 致谢：山东农业大学园艺学院2005届于凤、莱阳农学院环境艺术学院魏锦瑜同学协助部分工作. |
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| 摘 要： | 短日照处理不同天数后转到自然长日照下, 研究短日照处理对促成栽培的‘千禧’和‘早生天鹅绒’一品红生长开花的影响。结果表明短日照处理天数对其发育进程、苞片着色和观赏品质有显著影响。苞片转色后结束短日照处理, 节数与连续短日照相似, 但开花显著延迟; 现蕾时结束短日照处理, 开花时间、冠幅与连续短日照相似; 过渡性叶片面积在短日照处理至现蕾后13～14 d才与连续短日照相似。一品红对短日照处理天数的反应存在品种差异。现蕾前结束短日照处理导致一品红过渡性叶片的节间和花梗伸长、苞片着色变差, 出现开花逆转现象。为了保证观赏品质, 短日照处理要持续到现蕾以后。
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| 关 键 词： | 一品红 短日照 观赏品质 苞片着色 开花逆转 |
| 文章编号： | 0513-353（2006）03-0583-04 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-05-082005-09-01 |
Effect of Number of Short-day on Flowering and Visual Quality of Poinsettia |
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| Sun Zhaofa,Han Mingsan,Zhai Xiaoling,Wu Zhifei,Yu Qiugong,Xue Jigang,Chen Li.Effect of Number of Short-day on Flowering and Visual Quality of Poinsettia[J].Acta Horticulturae Sinica,2006,33(3):583-586. |
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| Authors: | Sun Zhaofa Han Mingsan Zhai Xiaoling Wu Zhifei Yu Qiugong Xue Jigang Chen Li |
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| Institution: | ( Institute of Flower, Q ingdao Academy of Agricultural Sciences, Qingdao, Shandong 266100, China; Qingdao Landscape and Environment School, Qingdao, Shandong 266002, China ) |
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| Abstract: | The effect of number of short-days on development and flowering of ‘Millennium’and‘Velveteen’poinsettia was studied by transferring plants from short-day to natural long days. The results showed that the number of short-day significantly affected the development, bract pigmentation and visual quality of poinsettia. When terminating short-day at bract colour change, the plants produced similar number of nodes below inflorescence to those under continued short-day, but flowering was delayed. Flowering time and canopysize did not change when transferred at or after visible bud stage. Until 13 - 14 d after visible bud, transitional leaf area remained equal to continued short-day. Poinsettia responded differently to number of short-days among cultivars. When terminating short-day before visible buds, poinsettia showed flower reversion with worse pigmentation of bract, longer node of transitional leaves and pedicle. As a conclusion, short-day should continue to visible buds in order to produce quality flowers. |
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| Keywords: | Poinsettia Short-day Visual quality Bract pigmentation Flowering reversion |
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