18
Question
Which of the following plant growth regulators should be used to delay senescence in plants?
Which of the following plant growth regulators should be used to delay senescence in plants?
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Solution
The correct option is C Cytokinin and gibberellin
Plant growth regulators are simple chemicals that control the growth and development of a plant. These are also termed as phytohormones or plant hormones. For example, gibberellin, ethylene, cytokinin, etc. Senescence is defined as the deterioration of a whole plant or plant organs due to loss of functional activity that ultimately leads to death. It is the last stage of development in plants. Senescence is affected by several phytohormones. For example, gibberellin and cytokinin both help in delaying senescence while ethylene helps in hastening senescence.
Plant growth regulators are simple chemicals that control the growth and development of a plant. These are also termed as phytohormones or plant hormones. For example, gibberellin, ethylene, cytokinin, etc. Senescence is defined as the deterioration of a whole plant or plant organs due to loss of functional activity that ultimately leads to death. It is the last stage of development in plants. Senescence is affected by several phytohormones. For example, gibberellin and cytokinin both help in delaying senescence while ethylene helps in hastening senescence.
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