Soaking seeds with warm water is called soaking to accelerate germination. This can soften the seed coat outside the seed, let the embryo inside absorb nutrients, and slowly start to germinate, so that it will germinate faster after sowing. We will judge the soaking temperature according to the thickness of the seed coat. The seed coat of Radix Isatidis is not very thick, and the water temperature need not be too high, just 30 to 40 degrees. If soaked in clear water, the soaking time can also be extended to 24 hours, which can also promote germination.
There are many ways to accelerate germination, such as hormone germination and sand storage. If you want to ensure the effect of accelerating germination, it is suggested that you can choose sand storage to accelerate germination; If you want to complete germination as soon as possible, you can choose hormone germination method. Different methods of accelerating germination can be used together to stimulate the activity of seeds, so that embryos can feel the external conditions and germinate very much, which will naturally start to germinate slowly. In the germination period, if the temperature can be kept at about 20 degrees, the seeds of Isatis indigotica will germinate quickly, and they can germinate 5 days after sowing.