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林业科学 ›› 2012, Vol. 48 ›› Issue (11): 150-150.doi: 10.11707/j.1001-7488.20121125

• 植物新品种与良种 • 上一篇    

楸树良种‘宛楸8402’

麻文俊1, 王军辉1, 张守攻1, 翟文继2, 王秋霞2, 王平2   

  1. 1. 林木遗传育种国家重点实验室 中国林业科学研究院林业研究所 北京 100091;2. 河南省南阳市林业科学研究所 南阳 473000
  • 收稿日期:2012-01-17 修回日期:2012-04-09 出版日期:2012-11-25 发布日期:2012-11-25
  • 通讯作者: 张守攻

An Elite Variety of Catalpa bungei ‘Wanqiu 8402’

Ma Wenjun1, Wang Junhui1, Zhang Shougong1, Zhai Wenji2, Wang Qiuxia2, Wang Ping2   

  1. 1. State Key Laboratory of Tree Genetics and Breeding Research Institute of Forestry, Chinese Academy of Forestry Beijing 100091;2. Nanyang Forestry Research Institute Nanyang 473000
  • Received:2012-01-17 Revised:2012-04-09 Online:2012-11-25 Published:2012-11-25

摘要:

‘宛楸8402’是由自然选优育成的楸树良种,通过嫁接和扦插等无性繁殖方式繁殖。5年生时树高和胸径平均为6.60 m和6.60 cm,较对照‘大叶金丝楸’高10.0%和4.0%;15年生时胸径和单株材积平均达29.40 cm和0.48 m3,较对照提高65.4%和182.5%,而材质与对照无明显差异。该品种具有速生、材质优良、抗性强等特点。

关键词: 楸树, 良种, 选育

Abstract:

The variety ‘Wanqiu8402’ was naturally selected from Catalpa bungei populations which were propagated by grafting and cutting methods. The average height and diameter at breast height (DBH) of five-year-old Catalpa bungei ‘Wanqiu8402’were 6.60 m and 6.60 cm respectively, which were improved by 10.0% and 4.0% compared with the control(C. bungei ‘Dayejinsiqiu’); Average DBH and individual volume of 15-year-old trees was 29.40 cm and 0.48 m3, which were improved 65.4% and 182.5% compared with the control. Moreover, qualities of timber had no significant differences between ‘Wanqiu8401’ and ‘Dayejinsiqiu’. This elite variety has the characteristics of fast growth, excellent timber qualities, and strong resistance.

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

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