在植物繁殖床里的培养中增加它的底部温度即底温,使之比外部的土温适当增加,这是农林园艺植物繁殖生产上和试验研究上提出来的要求。适当增加繁殖床的底温(一般比床面温度高3—6℃),对植物种子、种块(块根、块茎)的荫发和插条基部愈合生根,均有良好的促进作用。 The increase of its bottom temperature, ie, the bottom temperature, in the plant propagation bed, which is more than the outside soil temperature, is a requirement raised in the breeding and experimental studies of horticultural plants in agriculture and forestry. Appropriate to increase the bottom temperature of the breeding bed (usually 3-6 ℃ higher than the bed temperature), the plant seeds, seeds (tubers, tubers) of the shade and cutting root heal, have a good role in promoting.