Removal of apical dominance by decapitation is utilised for:
1. Suppressing the activity of intercalary meristem
2. Early senescence
3. Hedge making
4. Preparing weed-free lawns
1. | Auxin | 2. | Cytokinin |
3. | Ethylene | 4. | Abscisic acid |
Which hormone is used to induce immediate stomatal closure in leaves?
1. Cytokinin
2. Gibberellin
3. Abscisic Acid
4. Auxin
The living differentiated cells, that lost the capacity to divide anymore, can regain the capacity of division under certain conditions. This phenomenon is termed as:
1. | Redifferentiation | 2. | Maturation |
3. | Differentiation | 4. | Dedifferentiation |
Production of cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in plants?
1. | Cytokinin | 2. | ABA |
3. | Gibberellin | 4. | Ethylene |
1. | kill dicotyledonous weeds in the fields |
2. | speed up the malting process |
3. | promote root growth and root hair formation to increase the absorption surface |
4. | help overcome apical dominance |
1. | 2, 4-D | 2. | GA3 |
3. | Kinetin | 4. | Ethylene |