Seed Germination Factors

Click on the flashcard to see the answer

What is seed germination?

Seed germination is the process by which a seed develops into a new plant.

Why is water essential for seed germination?

Water activates the enzymes that break down stored nutrients, enabling the seed to grow.

What role does temperature play in seed germination?

Temperature influences the rate of germination, with each seed having a specific optimal range.

How does oxygen availability affect germination?

Oxygen is necessary for aerobic respiration, providing energy for seed growth.

What is the impact of light on germination?

Light can either stimulate or inhibit germination, depending on the seed type.

What is dormancy in seeds?

Dormancy is a period when seeds delay germination until conditions are favorable.

How do seeds overcome dormancy naturally?

Environmental factors such as temperature, moisture, and sometimes fire can break dormancy.

What is the role of growth regulators in seed germination?

Growth regulators can promote or inhibit germination by affecting hormonal balances.

How does soil pH impact seed germination?

Soil pH affects nutrient availability and enzyme activity crucial for seed germination.

Why does the seed coat affect germination?

The seed coat protects the seed but must be broken or permeable for germination to occur.

What is the significance of nutrient availability in germination?

Nutrient availability supports the growing seedling until it can photosynthesize independently.

How does salinity affect seed germination?

High salinity can inhibit germination by affecting water uptake and causing physiological stress.

What is imbibition in the context of seed germination?

Imbibition is the process of water absorption by the seed, crucial for triggering germination.

Can seed covering structures be a factor in germination delay?

Yes, hard seed covering structures can physically restrict water and gas exchange, delaying germination.

What are the critical phases of seed germination?

The phases include imbibition, activation of metabolism, radicle emergence, and seedling establishment.

Understand Better