23. What would be expected to happen if,
i) Gibberellic acid is applied to sugarcane?
ii) Ethephon is applied to Cucumber plants?
iii) You forget to add cytokinin to culture medium?
Answers
1)✒If GA3 is applied to rice seedlings: The rice seedlings will show extra elongation and increase in height. They may also remain♛
2)✒If Dividing cells stop differentiating: The plant organs like leaves, flower, etc. will not be formed and callus or tumor of undifferentiated cells will be produced.♛
3)✒If a rotten fruit gets mixed with unripe fruits: The unripe fruits will ripe quickly as the rotten fruit emits ethylene.♛
↳THIS IS YOUR ANSWER✰
Answer:
i) Gibberellins produce remarkable stem and leaf sheath elongation in undamaged plants.
ii) Applying ethylene causes cucumber plants to produce more female flowers, which raises the crop's overall output.
iii) In tissue culture, cytokinins have the ability to stimulate cell division and promote the formation of shoot buds.
Explanation:
According to studies, dwarf plants that receive GA from an external source quickly elongate. Sugarcane develops physiological dwarfism during the sub-tropical winter because of the reduced radiation and temperatures (Saccharum spp.). By using gibberellic acid, this decline in growth can be overcome, and yields increase (GA3).
Ethephon is used to ripen tomatoes, apples, and walnuts as well as to hasten the abscission of cotton, cherry, and walnut flowers and leaves. It increases the number of cucumbers with female flowers. In order to boost the number of female blooms on cucumber plants, the farmer can use ethylene.
A plant growth hormone called cytokinin encourages cytokinesis, or cell division, in the roots and shoots of plants. The ratio of auxin and cytokinin has an impact on the development of roots and shoots in plant tissue culture. Auxin encourages the creation of roots, whereas cytokinin encourages the formation of shoots.