三种槭树三年生幼苗抗寒性研究

温度影响着植物的自然地理分布,其中极端低温会给辽东的城市园林绿化建设以及绿化树幼苗培育带来诸多不利,致使许多观赏性绿化树种栽植和培育过程中,因遭受低温胁迫超过其低温耐受极限造成树木整株死亡。近年对于彩叶树抗寒性研究比较多,但对于苗圃播种苗、移床苗抗寒性的讨论和研究不是很多。以秋季红叶观赏性为主要特点的元宝枫、色木槭、拧筋槭3年生幼苗作为研究对象,通过低温处理,然后测定其相对电导率,并用logistic方程回归求其半致死温度,研究3种槭树幼苗的抗寒性,为辽东山区苗圃地培育绿化用彩叶树幼苗提供依据。

Study on Cold Resistance of Three Acerns Seedling in Three Years

The temperature affects the natural geographical distribution of plants,and the extreme low temperature will bring a lot of disadvantages to the urban landscape greening in eastern liaoning province as well as the planting and seedling cultivation of trees.As a result,many ornamental afforestation tree species died in the process of planting and breeding because they suffered from low temperature stress exceeding their low temperature tolerance limit.In recent years,there have been a lot of researches on the cold resistance of color-leaved trees,but there are not many discussions and researches on the cold resistance of seedling in nursery and bed.In this paper,the appreciation of the autumn red leaves as the main characteristics of acer truncatum,color wood,maple,twist reinforcement maple seedlings three years as the research object,through the low temperature treatment,and then determine the relative conductivity,and find out its lethal temperature,logistic equation regression research three maple seedlings in hardiness,the liaodong mountainous viability cultivate green colored tree seedlings with provides the basis.