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Position: Home > Articles > Comparative Observation and Clones Choosing of Tow-year Catalpa bungei Clones Forest in Coastal Area Chinese Agricultural Science Bulletin 2013,29 (28) 14-17

沿海地区楸树无性系幼林对比测定及选择研究

作  者:
袁涛;吴倩婷;成向荣;王婉;虞木奎
单  位:
中国林业科学研究院亚热带林业研究所;山东临沂市林业局
关键词:
沿海地区;楸树无性系;生长指标;聚类
摘  要:
为筛选出适合中国东部泥质海岸的优良楸树无性系,以‘豫楸1号’(YQ1)无性系为对照,研究了2年生28个无性系的生长情况,并通过聚类分析筛选出优良楸树无性系。结果发现,无性系胸径变化范围在3.24~5.24 cm,平均为4.13 cm;树高变化范围在3.48~5.18 m,平均为4.34 m;其中9个无性系的胸径和6个无性系的树高大于对照YQ1(胸径和树高分别为4.02 cm、4.29 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,29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。筛选出无性系008-1-3具有最大的胸径和树高;筛选出4-2-2-5、4-2-6-8、4-2-8-3和6523-4等4个无性系具有较大的胸径和树高,这5个楸树无性系可作为今后沿海地区重点推广的楸树无性系。
译  名:
Comparative Observation and Clones Choosing of Tow-year Catalpa bungei Clones Forest in Coastal Area
作  者:
Yuan Tao;Wu Qianting;Cheng Xiangrong;Wang Wan;Yu Mukui;Forestry Bureau of Linyi;Research Institute of Subtropical Forestry,Chinese Academy of Forestry;College of Environment and Plant Protection,Hainan University;
关键词:
coastal area;;Catalpa bungei clones;;growth index;;cluster analysis
摘  要:
Twenty-nine Catalpa bungei clones,including 28 new test clones and one control,YQ1,were induced to choose fine clones in coastal area in Jiangsu Province.Growth indices,such as diameter at breast height(DBH),height(H),were monitored in a 2-year-old Catalpa bungei test forest.The range was 3.245.24 cm,with the mean of 4.13 cm,forDBH,and 3.48-5.18 m,with mean of 4.34 m for H,for all 29 clones.There were 9 clones forDBH,and 6 clones for H,were higher then YQ1.29 clones were clustered to 4 groups through cluster analysis,and significantly differences were found among these 4 groups forDBHand H.008-1-3,with highestDBHand H,was found to be the best clones,and 4-2-2-5,4-2-6-8,4-2-8-3 and 6523-4 were also chose out due to higherDBHand H.These 5 clones could be planted in coastal area.

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