Question

What are the three conditions necessary for the germination of seeds?

Answer 1

Conditions necessary for the germination of seeds:
1. Water:
Germination cannot occur unless and until the seed is provided with an external supply of water. Water is absorbed by a dry seed through the micro Pyle and the seed coat.
2. Oxygen:
Aeration of the soil is absolutely necessary for the germination of the seed because oxygen is necessary for the aerobic respiration by which the seeds get the requisite energy for the growth of the embryo.
3. Temperature:
Seeds normally germinate within a wide temperature range. However, freshly harvested seeds of several plants germinate only within a narrow temperature range which widens only when after-ripening has taken place.