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प्रश्न
Multiple choice question.
Abscisic acid controls ______.
विकल्प
cell division
leaf fall and dormancy
shoot elongation
cell elongation and wall formation
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उत्तर
Abscisic acid controls leaf fall and dormancy.
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संबंधित प्रश्न
A plant hormone related with inhibition of senescence is
The figure given below shows the stages of ripening in a banana. Answer the question that follow:

Mention two characteristic features of this hormone.
Multiple choice question.
Which is employed for the artificial ripening of banana fruits?
Very Short Answer Question:
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Cause of degreening is ______.
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| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
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| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
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Name various plant hormones. Also give their physiological effects on plant growth and development.
