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प्रश्न
The substance that triggers the fall of mature leaves and fruits from plants is due to
विकल्प
auxin
gibberellin
abscisic acid
cytokinin
उत्तर
abscisic acid
Explanation -
Abscisic acid is a growth-inhibiting hormone and its effect include wilting of leaves.
APPEARS IN
संबंधित प्रश्न
Which plant hormone is responsible for the wilting and falling of leaves?
Most of the plant hormones promote plant growth. A plant hormone which inhibits growth is ______.
Bring out any two physiological activities of abscisic acid?
Abscisic acid functions as
Abscisic acid is a ____________ chemically.
The main function of abscisic acid in plants is to
______ hormone is responsible for the efflux of K+ ions from guard cells and acts as an antitranspirant.
Given below function performed by plant hormone. Which hormone is responsible for the given action?
Shedding of leaves
Describe abscissic acid physiological effects.
______ and ______ induce chemotropism of angiosperms and gymnosperms.
