Question

Which plant hormone can replace the cold treatment?

Answer 1

Here is your answer dear⤵⤵⤵⤵

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✔ Annual winter wheat plants take one year full growing season for the completion of their vegetative growth period and then initiate flowers and fruits. This is because after they form seedlings in autumn, they receive low temperature throughout winter, which enables them to reach vegetative maturity. They resume growth- in spring and bear flowers and grains towards mid-summer.





✔The chilling or cold treatment of seeds to reduce flowering is called vernalisation. It is a process of shortening of the juvenile or vegetative phase and hastening flowering by a previous cold treatment. This stimulus of vernalisation is perceived only by the meristematic cells, e.g., shoot tip, embryo tip, root apex, developing leaves, etc. c. GA or gibberellic acid treatment can replace cold treatment and can induce flowering early by reducing vegetative growth period in many long-day plants. 

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Answer 2

Gibberellins can replace the cold treatment

Explanation:-

• Gibberellins (GAs) are a large family of tetracyclic diterpenoid plant hormones that regulate many different aspects of plant growth and development through the entire plant life cycle, including cell division and elongation, seed germination, stem and hypocotyl elongation, includes promoting root growth. , and flower induction

• When gibberellins were applied to plants requiring some freezing, they flowered without low-temperature treatment.

• Thus it is conceivable that gibberellins can induce some changes within the plant which in turn leads to flowering.