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墨西哥落羽杉优良单株选择及无性繁殖(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2006年04期
Page:
29-32
Column:
研究论文
publishdate:
2006-04-20

Article Info:/Info

Title:
The Plus Tree Selection and Vegetative Propagation of Taxodium mucronatum
Article ID:
1000-2006(2006)04-0029-04
Author(s):
ZHOU Yu-zhen1 LI Huo-gen2 LI Bo2 TENG Shi-yuan3 HUANG Min-ren2
1. College of Landscape Architecture Beijing Forestry University, Beijing 100083, China; 2. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 3. Wujiang City Nursery Co., Ltd, Suzhou 215222, China
Keywords:
Taxodium mucronaturn Plus tree Selection Vegetative propagation
Classification number :
S722
DOI:
10.3969/j.jssn.1000-2006.2006.04.007
Document Code:
A
Abstract:
100kg seeds of Taxodium mucronatum Ten. of eastern Mexico were introduced to Wujiang City Nursery Co., Ltd in 2000, and a population of 100000 seedlings was established next year. In 2003,983 plus trees were selected from it based on the individual investigation of growth and crown characteristics, among which, 837 plus trees were selected for their merit of fast growing, 78 trees for their unique crown, and 48 for their golden leaves. The selection differential (S) of basal diameter (D) and height (H) were 0.84 cm and 56.78cm respectively, the selection intensity (I) of D and H were 1.5 and 1.89 respectively. On the whole, a conclusion could be drawn that vegetative propagation could be easily realized due to their high survival percentage (86% for cuttings and 95% for transplants), whereas a significant variation of survival ratio among clones was found.

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Last Update: 2013-05-20