Question

7. What is apical dominance? Which hormone plays role in apical dominance?​

Answer 1

Answer:

Auxin is a plant growth hormone. This hormone is responsible for the growth and elongation of the shoot. There is apical dominance observed in presence of auxin. This results in the growth of the central stem which is dominant and suppresses the growth of the lateral buds such phenomena is called as apical dominance. The auxins are produced at the tips. The pruning of the tips is done where the branches are cut periodically in mariculture. This allows the lateral buds to grow and form branches. This helps to make the plant bushy.

Answer 2

Apical dominance refers to a plant's developing apex controlling the dormancy of buds located further down the stalk.

Explanation:

• Apical dominance refers to a plant's developing apex controlling the dormancy of buds located further down the stalk.
• 'Correnhibitionlative' refers to this type of bud inhibition.
• Correlative inhibition is frequently graded: the greater the inhibition, the lower on the shoot it occurs.
• The growth is particularly upright in plants with strong apical dominance, such as firs, with one dominating central axis.
• Excurrent trees are those that grow in a direction that is not the same as the wind.
• The bushy growth of many shrubs, referred to as 'deurrenct,' demonstrates low apical dominance.

Auxin is a hormone that  plays role in apical dominance

• Auxin is a hormone that stimulates plant growth. The growth and elongation of the shoot are controlled by this hormone.
• In the presence of auxin, an apical dominance is observed.
• This causes the core stem to expand at a faster rate than the lateral buds, suppressing their growth.
• Apical dominance is a term used to describe this type of phenomenon. Auxins are produced in the tips of the hair follicles.
• In mariculture, the branches are clipped at regular intervals and the tips of the branches are pruned.
• The lateral buds might expand and generate branches as a result of this. This aids in the bushy growth of the plant.