What are the main environmental factors that affect the germination of kidney bean seeds because of the cold weather in early spring?

In the cold early spring weather, the environmental factors that affect the germination of kidney bean seeds are mainly suitable temperature, certain moisture and sufficient air, cotyledons, pollination and fertilization.

1. Seed germination needs not only its own conditions, but also external conditions such as suitable temperature, certain moisture and sufficient air.

2. Nutrients needed for soybean germination are stored in cotyledons.

3. In the process from flower to fruit, two important physiological processes are pollination and fertilization.