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中国农学通报 ›› 2014, Vol. 30 ›› Issue (16): 53-56.doi: 10.11924/j.issn.1000-6850.2013-3062

• 林学 园艺 园林 • 上一篇    下一篇

沿海地区滇楸无性系幼龄林对比测定及选择研究

吴倩婷 顾沈华 王婉 成向荣 虞木奎   

  • 收稿日期:2013-11-21 修回日期:2013-12-13 出版日期:2014-06-05 发布日期:2014-06-05
  • 基金资助:
    浙江省重大科技专项重点农业项目“沿海楸树大径材培育关键技术研究与示范”(2011C12016);浙江省林业科技项目“沿海楸树品种定向选择和培育技术推广与示范”(2012B06)。

Comparative Observation and Clones Choosing of Two-year Catalpa duclouxii Dode Clones Forest in Coastal Area

  • Received:2013-11-21 Revised:2013-12-13 Online:2014-06-05 Published:2014-06-05

摘要: 为筛选出优良的滇楸无性系,研究了61个滇楸无性系的生长情况,并通过聚类分析筛选出优良滇楸无性系。结果发现,无性系胸径变化范围1.47~4.55 cm,平均为2.57 cm;树高变化范围在1.44~3.58 m,平均为2.27 m。方差分析发现,无性系间胸径和树高均存在显著差异。采用胸径和树高2个生长指标对所有无性系进行聚类分析,61个无性系可明显的划分成4类,且各类间两指标均存在显著差异。筛选出040、36-1、gz-11、yn-031-2、yn-041-5、yn-042-1、yn-1、yn-2、yn-36、109-1、142-2等11个无性系具有较大的胸径和树高,可作为今后滇楸无性系的重点推广对象。

关键词: 表达分析, 表达分析

Abstract: Sixty-one Catalpa duclouxii clones, were induced to choose better clones in Dongtai City, Jiangsu Province. Growth indices, such as diameter at breast height (DBH), height (H), were monitored in a Catalpa duclouxii test forest. The range was 1.47-4.55 cm, with the mean of 2.57 cm, for DBH, and 1.44-3.58 m, with mean of 2.27 m for H. 61 clones were clustered to 4 group through cluster analysis, and significantly differences were found among these 4 groups for DBH and H. 040, 36-1, gz-11, yn-031-2, yn-041-5, yn-042-1, yn-1, yn-2, yn-36, 109-1, 142-2 were chose out due to higher DBH and H. These 11 clones could be pay more attention to.