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प्रश्न
Briefly, explain the factors that are necessary for germination.
उत्तर
The factors necessary for germination are:
- Water-Water is essential for seed germination since protoplasm becomes active only when saturated with water. Water facilitates the necessary chemical changes in food material. Also enzymatic reaction occurs only in the water medium. Water when imbibed by the seed coat makes it soft and swollen. Then the seed coat bursts open, helping the embryo come out easily.
- Temperature - A suitable temperature is essential for seed germination since many physiological processes occur within the seed during germination. Seeds fail to germinate below 0°C or above 45°C. The optimum temperature for seed germination is 15-30°C.
- Oxygen - During germination, embryo resumes growth and for this energy is required. This energy comes from the oxidation of food material stored in the endosperm or cotyledons. This process requires oxygen.
APPEARS IN
संबंधित प्रश्न
Is the following statement true (T) or false (F)?
Oxygen is necessary for the germination of seeds.
Fill in the blanks:
In bean seeds, ______ grows faster and the seeds are brought ______ ground.
Germinated grams are considered highly nutritive. What is the reason for this belief?
With regard to germination in bean seed, answer the following question:
Draw a neat labelled diagram of the structure named above.
Explain the following term:
Dormancy
Explain the following term:
Epigeal germination
The question has four options. Choose the correct answer:
The essential condition for germination is
Which one of the following is an albuminous seed?
During epigeal germination of seed, ______.
