摘要
胡桃揪的生长性状、适应性状和生理生化等性状,在种源间均存在着显著差异。生长性状与地理因子相关显著,呈现为西南—东北的变异趋势,越靠近分布区西南部的种源生长量越大,越靠近分布区东北部的种源生长量越小。生理生化性状与地理因子的相关虽然未达到显著性水平,但也呈现为西南—东北的变异趋势,可作为研究生长变异趋势的佐证。以晚霜危害率为代表的适应性状与地理因子的相关关系,也表现出一定的规律,那些生长量大的种源,春天萌动得晚,受晚霜危害轻。而靠近分布区东北部的生长量小的种源,受晚霜的危害较重。
The characters of growth, adaptation and the physiological and bio chemical properties of Juglans mandshurica are all obviously different among the provenances tested. The correlation between growth Chara cter and geographic factors is obvious and shows that the variation is in the tendency from the southwest to the northeast. The nearer to the southwest of the distribution region, the greater the provenance prod uctivities; the nearer to the northeast of the distribution region, the smaller the productivities of the provenance. Though the correlation between the physiological-chemical properties and the geographic factors is not obvious, it also shows the variation tendency from the southwest to the northeast All these results can be considered as the demonstrations of studing the variation tendency of growth. The correlation between the adaptive characters presented by harm percentage of latefrost and the geographic factors also indicates a certain rule. These provenances which grow fast and sprout late inspring are harmed slightly by late-frost, but seriously for these which grow slowly and near to the northeast of the distribution region.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1991年第S2期183-188,共6页
Journal of Northeast Forestry University
关键词
胡桃楸
种源试验
地理变异
Juglans mandshurica
Provenance test
Geographic variation
