西南林业大学学报2017，Vol.37Issue(1)：61-65,5.DOI:10.11929/j.issn.2095-1914.2017.01.011
杉木不同母株无性系针叶营养元素含量比较
Comparison of the Needle Nutrient Element Contents of Different P arent Clones in Chinese Fir
摘要
Abstract
This study aimed to quantify needle nitrogen ( N ) , phosphorus ( P ) , potassium ( K ) , calcium ( Ca) and magnesium ( Mg) content of twenty stock plants in Chinese fir scion nursery. The obtained results indica-ted that N content ( average 15. 70 g/kg) ranked the first in needle elements, and Mg ( average 1. 10 g/kg) posi-tioned the last in element content. Needle N, P and K content appeared to be positively correlated to each other at a significant level ( P<0. 01 or 0. 05) , and it was the same for Ca with Mg ( P<0. 01) . Strikingly, each needle nu-trient element content varied significantly among clones ( P <0. 01 ) with a coefficient of variation ranging from 10. 80 to 25. 97%. The needle nutrient element content ratio also varied among clones as high for K/Ca and low for N/P . According to principal component analysis result, ten Chinese fir stock plant clones ( cXK12, cXF03, cXK13, cXK14, cXF13, cXF01, cXK01, cXF06, T-c07, cXF14) were identified to have higher uptake ability on nutrient elements.关键词
杉木/无性系/营养元素/主成分分析/采穗圃Key words
Chinese fir/clone/nutrient element/principal component analysis/scion nursery分类
农业科技引用本文复制引用
苏艳,胡德活,王润辉,郑会全..杉木不同母株无性系针叶营养元素含量比较[J].西南林业大学学报,2017,37(1):61-65,5.基金项目
广东省省级科技计划项目(2014A030304039)资助；林业公益性行业科研专项经费(201404127)资助；华南农业大学教改项目资助。 （2014A030304039）
