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प्रश्न
Describe the process of germination in bean and maize seeds.
उत्तर
Germination in bean seed is called epigeal germination. It occurs as follows:
- Germination starts with the uptake of water, which bursts the seed coat, and the radicle comes out and grows downwards.
- The region of plumules elongates and the seed comes out of the soil. The plumule emerges between the two cotyledons.
- The plumule forms two green leaves.
- The food stored in the cotyledons is used for growth and cotyledons shrivel and fall off.
- The radicle gives rise to the root system while the plumule forms the shoot.
Germination in maize seed is called hypogeal germination. It occurs as follows:
- The seeds absorb water and swell.
- Radicle comes out of the seed and forms the primary root.
- The plumule comes out forming the leaves.
- The food stored in the endosperm is used for growth
- The cotyledons remain below the ground.
APPEARS IN
संबंधित प्रश्न
Is the following statement true (T) or false (F)?
Maize grain is fruit and not a seed. (T/F)
Multiple choice questions. Tick (✓) the correct choice:
A seed consists of
Define the following:
Embryo
Mention the functions of the following:
Seed coat
Name the following:
The protective sheath covering the radical in the maize grain.
Name the following:
The small opening through which water enters the seeds.
The question has four options. Choose the correct answer:
Food is stored in the seeds of castor
The question has four options. Choose the correct answer:
The caruncle is present in
Differentiate between:
Coleorhiza and Coleoptile.
The mature seeds of plants such as gram and peas, possess no endosperm, because ______.
