期刊论文

中文

中南林业科技大学学报

1673-923X

2004

24

4

17-19,23

10.3969/j.issn.1673-923X.2004.04.004

国家高技术项目"杜仲良种快繁及高产栽培技术研究"(99-15)的部分研究内容.；

本校为其他机构

为了弄清杜仲叶含胶特性的个体变异规律,为杜仲高产胶优良无性系的选择提供科学依据,采用选择典型样株和随机取样的方法进行测验,含胶率的测定采用杜仲胶综合提取法.研究结果表明:不同无性系叶长、叶宽、叶片厚度、叶面积、单叶质量和叶片含胶率的差异均达到了极显著水平;叶片含胶率最高为3.23%,最低仅1.55%;杜仲无性系叶片含胶率与叶长和单叶质量的相关性达到了显著水平,而与叶宽、叶片厚度、叶形指数、叶面积的相关性均未达到显著水平,这说明无性系叶片含胶率的高低在叶片的形态方面的表现并不明显;而单叶含胶量与叶长、叶宽、单叶面积、单叶质量以及叶片含胶率的正相关关系达到了极显著水平....

To ascertain the individual variations of the characteristics of gutta-percha contained leaves associated with Eucommia ulmoides Oliv and as a result to provide a scientific guidance for selecting high-yield clones, analyses were made at an experimental demonstration base in Songxian County, Henan Province in 2002. Samples were collected by means of typical-tree selection and random-tree selection and the rate of gutta-percha content in samples was tested through integrated extraction. The results show that there are significant differences among the length, width, thickness of leaves, leaf ar...