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当前位置: 首页 > 文章 > 短日照处理天数对一品红开花和观赏品质的影响 园艺学报 2006,33 (3) 583-586
Position: Home > Articles > Effect of Number of Short-day on Flowering and Visual Quality of Poinsettia Acta Horticulturae Sinica 2006,33 (3) 583-586

短日照处理天数对一品红开花和观赏品质的影响

作  者：
孙兆法;韩明三;翟晓灵;吴稚斐;于遒功;薛继岗;陈莉
单  位：
青岛市农业科学院花卉研究所;青岛市园林环卫技术学校
关键词：
一品红;短日照;观赏品质;苞片着色;开花逆转
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13~14d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。
译  名：
Effect of Number of Short-day on Flowering and Visual Quality of Poinsettia
作  者：
Sun Zhaofa~1,Han Mingsan~1,Zhai Xiaoling~1,Wu Zhifei~1, Yu Qiugong~1,Xue Jigang~2,and Chen Li~1 ( ~1Institute of Flower,Qingdao Academy of Agricultural Sciences, Qingdao, Shandong 266100, China; ~2 Qingdao Landscape and Environment School,Qingdao, Shandong 266002, China )
关键词：
Poinsettia; Short-day; Visual quality;Bract pigmentation;Flowering reversion
摘  要：
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 canopy size 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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