[1]汪贵斌,袁安全,曹福亮,等.土壤水分胁迫对银杏无机营养元素含量的影响[J].南京林业大学学报(自然科学版),2005,29(06):015-18.[doi:10.3969/j.jssn.1000-2006.2005.06.004]
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土壤水分胁迫对银杏无机营养元素含量的影响
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
29
期数:
2005年06期
页码:
015-18
栏目:
研究论文
出版日期:
2005-10-20

文章信息/Info

Title:
The Effects of Water Stress on Nutrient Element Contents in Root, Stem and Leaf of Ginkgo
文章编号:
1000-2006(2005)06-0015-04
作者:
汪贵斌1袁安全3曹福亮1景茂2潘静霞1
1. 南京林业大学森林资源与环境学院, 江苏 南京 210037; 2. 江苏省科学技术厅, 江苏 南京 210008; 3. 洪泽县林牧业发展局, 江苏 洪泽 223100
Author(s):
WANG Gui-bin1 YUAN An-quan3 CAO Fu-liang1 JING Mao2 PAN Jing-xiaj
1. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China; 2. Science and Technology Administration of Jiangsu Province, Nanjing 210008, China; 3. Forestry and Herd Bureau of Hongze, Hongze 223100, China
关键词:
银杏 水分胁迫 无机营养元素
Keywords:
Ginkgo biloba L. Water stress Nutrient elments
分类号:
S718.43
DOI:
10.3969/j.jssn.1000-2006.2005.06.004
文献标志码:
A
摘要:
<正>以福建邵武卫闽国有林场营造的杉木种子园自由授粉子代测定林为试验材料,对25年生的试验林进行系统测定,探讨了家系生长性状、木材基本密度、木材红心材比率、形质性状的遗传变异规律,并进行了相关性分析。结果表明:杉木种子园自由授粉子代家系在树高、胸径、材积性状上存在显著差异;木材基本密度在家系水平上存在较小差异,而在个体水平上差异较大;木材红心材比率在家系、个体水平上差异都很大;参试家系在树干通直度、圆满度、分枝角等形质性状上差异不大,在树皮率指标上存在很大变异。家系生长性状与木材红心材比率呈显著至极显著的正相关关系,但与木材基本密度相关性很小;生长性状与树皮率指标间存在极显著的负相关关系。进行杉木优良家系选择时在早期(4年生)以树高指标采用较低的选择强度进行选择,到了中期(7~10年生)以中等选择强度进行选择,到了后期(18年生左右)以较高的选择强度进行决选。从参试的63个杉木自由授粉子代家系中选出生长、材性、形质性状兼优的优良家系7个、优良个体12株。
Abstract:
One year old seedlings of Ginkgo biloba L. were grown in a pot under greenhouse conditions with varying soil water levels to study the effects of soil water contents on uptake and allocation of nutrient elements. Four soil water levels (80% (W1), 60% (W2), 40% (W3) and 20% (W4) of field capacity) were employed, and the time of treatment was 100 clays. The results were as follows: (1) There existed signifieant effects for soil water contents on nutrition element concentration of the Ginkgo leaf, root and stem. Total N concentration of stem and leaf, total Ca and K concentration of leaf, total Cu concentration of root and total P of stem, root and leaf increased at the very beginning of the experiment, then decreased (W3 and W4) with decreasing of soil water content, However, total Ca concentration of stem and root, total Cu concentration of stem and total Mg, Mn and Zn concentration of root and leaf increased with decreasing of soil water content, but total Cu concentration of leaf and total K concentration o[ stem and root decreased. (2) The order of total N, P, Ca, and Mg concentration of root, stem and leaf from high to low was c(leaf)>c(stem)>c(root), and the order of total Cu concentration was c(root)>c(leaf)>c(stem), and the order of total Mn concentration was c(stem)>c(leaf)>c(root), and the order of total Zn concentration was c(stem)>c(root)>c(leaf). (3) The correlative analysis among nutrients elements showed some of nutrient elements had a significant positive or negative relativity.

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更新日期/Last Update: 2013-05-20