Wednesday, July 1, 2015

Condition for Seed Germination

Condition for Seed Germination:
Seed germination depends on both internal and external conditions. The internal condition include a live embryo and sufficient food storage. The most important external conditions include water, oxygen and favourable temperatures.
Condition for Seed Germination

Water:
Seeds of most plants have low water content, and germination cannot occur until seed coat or other tissues have imbibed water. The absorbed water is used in the digestion of the stored food and it also helps in the elongation of hypocotyls and epicotyls.

Oxygen:
Oxygen is essential for the respiration in the cells of embryo.
Temperature:

Seeds differ greatly in their temperature requirements for germination.

The optimum temperature for the germination of the seeds of most plants ranges from 25-30 C.

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