摘要
野生川续断居群间存在着丰富的变异性,植株地上部分:茎高、基生叶柄长、基生叶面积、基生叶长宽比、单株总苞数和总苞体积,以及地下部分:肉质根质量、肉质根条数和干燥根药效成分含量等表性特征是构成居群间性状差异的9个主要因素;地上部分植株表性与根质量之间存在极显著的线性回归关系,良种复选时宜选择茎干高大,基生叶叶柄长、叶片大而狭长,单株结苞量多且苞球较大的植株作为采种单株;野生居群间植株表性存在较强的相关性,9个野生居群可聚为两个大类,干燥根药效含量最高的格萨拉居群和肉质根质量最重的永兴居群可分别代表一个大类作为优良种源。
The variability is rich among wild Dipsacus asperoides populations. The morphological characters of aboveground and underground parts form 9 major factors of character differences within wild populations. Aboveground parts, such as stem height, length of basal leafstalk, area and aspect ratio of basal leaf, the number and area of involucre of single plant. Underground parts include root weight, root number, content of active component in the dry, and so on. Regression analysis disdays a significant relationship in the characters of aboveground parts and root weight. It is better to choose the one with strong stem,long length of basal leafstalk, a long and narrow leaf, a big number and volume of involucre of single plant as high quality seeds to collect seeds. There is a strong correlation in morphological characters of wild Dipsacus asperoides populations. 9 wild populations were classified into 2 groups. One was Ge Sa-la Population, its content of active component in the dry was the highest, the other was Yong Xing Population, its root was the heaviest. Both populations could be used as high quality seeds.
出处
《四川林业科技》
2015年第5期21-24,共4页
Journal of Sichuan Forestry Science and Technology
基金
攀枝花市重点科技项目(2012CY-S-8):川续断良种选育及种植技术研究
关键词
川续断
野生居群
表现性状
变异性
良种初选
dipsacus asperoides C. Y. Cheng et T. M. Ai, wild population, shape characteristics, variability, excellent provenance selection
