摘要
研究黑松耐寒性,确定黑松适宜的栽植区域,对确定栽植区域是非常必要的。通过对黑松针叶及枝条在不同越冬时期进行低温处理,测定电导率、脯氨酸含量、丙二醛含量、过氧化物酶活性等,确定黑松在休眠中期低温临界值为-25℃,在休眠前期和休眠末期低温临界值为-20℃。
It is extremely essential to determine Pinus thunbergii favorite cultivated regions and the cold resistance, The electrolyte leakage, MDA content and praline activities of POD of leaves and branches treated with low temperatures over winter were measured, The results showed that the critical value of low temperatures in the dormancy metaphase was - 25℃, and in the dormancy prophase and telophase was - 20℃.
出处
《辽宁林业科技》
北大核心
2006年第2期16-17,19,共3页
Liaoning Forestry Science and Technology
关键词
黑松
耐寒性
低温临界值
栽植区域
Pinus thubergii
cold resistance
critical value of low temper
