1 品种选择及播前准备 1.1 品种选择选择早熟,适宜出口的皱叶青紫苏。 1.2 种子处理紫苏性喜暖湿润的气候。种子8℃以上就发芽,适宜的发芽温度为18-23℃。种子休眠期长达120d,刚釆收完的种子需放在3℃的温度条件下5d,并用100mg/L的赤霉素处理,打破休眠,促进发芽。釆收的种子忌干燥贮藏,在阴凉处风干2～3d后,用等量河沙与种子混合,保持适宜的温度,装箱埋于土中,利于发芽。 A variety of choices and preparation before sowing 1.1 Selection of varieties to choose early precocious, suitable for export of the leaves of purple leaves. 1.2 seed treatment perilla warm and humid climate. Seed germination above 8 ℃, the appropriate germination temperature is 18-23 ℃. Seed dormancy up to 120d, just finished harvesting the seeds to be placed at 3 ℃ temperature for 5d, and 100mg / L of GA treatment, breaking dormancy and promote germination. Harvest the seeds bogey dry storage, air-dried in the shade 2 ~ 3d, with an equal amount of sand mixed with the seeds, maintaining the appropriate temperature, packing buried in the soil, which will help sprout.