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林业科学 ›› 2014, Vol. 50 ›› Issue (6): 187-187.doi: 10.11707/j.1001-7488.20140625

• 植物新品种与良种 • 上一篇    下一篇

楸树良种‘云朵楸’

麻文俊1, 王军辉1, 张守攻1, 赵鲲2, 焦云德2   

  1. 1. 中国林业科学研究院林业研究所 国家林业局林木培育重点实验室 北京 100091;
    2. 洛阳农林科学院 洛阳 471023
  • 收稿日期:2014-01-07 发布日期:2014-07-07
  • 基金资助:
    “十二五”国家科技支撑计划(2012BAD01B05)。

An Elite Variety of Catalpa bungei ‘Yunduo’

Ma Wenjun1, Wang Junhui1, Zhang Shougong1, Zhao Kun2, Jiao Yunde2   

  1. 1. Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration Research Institute of Forestry, Chinese Academy of Forestr, Beijing 100091;
    2. Luoyang Academy of Agriculture and Forestry Sciences Luoyang 471023
  • Received:2014-01-07 Published:2014-07-07
  • Contact: 王军辉

摘要: ‘云朵楸’是通过自然选优育成的具有较高观赏价值的楸树观花良种,可通过嫁接和扦插等无性繁殖方式繁殖。造林后4年开花,6年后花量稳定;花朵为白色,较对照(大叶金丝楸)洁白,伞形花序,单花絮6~20朵花,较对照多10朵左右;花期一般为4月25日-5月10日,较对照晚5~7天,但开花持续期较对照长5天以上。该品种具有花色独特、花量大、抗性强等特点,适宜园林观花栽植。

关键词: 楸树, 良种, 选育

Abstract: Catalpa bungei ‘Yunduo’ is a new flower variety with highly ornamental value, which is selected through natural choose and can be reproduced by grafting and cutting. This variety can be flowering 4 years after of forestation; flower number can get stabilization 6 years after afforestation. The flower is whiter and more pure than the control (Catalpa bungei ‘Dayejinsiqiu’), with umbel, single tidbits with 6-20 flowers and is about 10 more than the control; Florescence is during April 25 to May 10, 5-7 days later than the control, but flowering duration is 5 days longer than the control. This variety with the characteristics of unique flower color, large flower number and strong resistance and so on, is pretty suitable for garden flower planting.

Key words: Catalpa bungei, elite variety, selecting & breeding

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