[医]半数致死温度;
The cold resistance of the 6 spices alpine plants varies with air temperature. The change curve of the median lethal temperature is a single peak.
在整个生育期内,6种高寒植物的抗寒性具有随环境温度变化而改变的特性,它们的半致死温度的呈单峰变化趋势。
The phenols content is high and the median lethal temperature is low, then cold resistance is strong in the green up period, fist period of exuberance and withering period.
在高寒植物的返青期、草盛前期和枯黄期,酚类物质含量高,半致死温度低,抗寒性强;
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