Question

Explain what would happen if:
(i) Gibberellins are applied to cabbage plant.
(ii) Cytokinins are applied to a plant externally.
(iii) Ethylene is sprayed on a mango tree.
(iv) A flower is emasculated and auxin is applied
to its stigma
(v) A plant is kept near an open window.​

Answer 1

4.When the Flower is emasculated and auxin is applied it could be maintained safe by unusual pollen grain fusion to the Flower

Answer 2

Explanation:

1. Gibberellin is a growth hormone in plants. cabbage being a vegetable with very short internodes, lead to having a high internodal growth.
2. Cytokines act as local growth hormones i.e. It will act on the place it is applied externally.
3. Ethylene is the growth and maturation hormone of the plant. If it is applied to the mango tree, its fruit will mature rapidly.
4. The process of parthenocarpy. Parthenocarpy is the process of bringing about ripe fruits without seeds.
5. The plant will bend towards the sunlight due to the effect of auxin.