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प्रश्न
Identify the growth hormone in plants which causes inhibitory effect.
विकल्प
Cytokinins
Abscissic acid
Gibberellin
Ethylene
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उत्तर
Abscissic acid
Explanation:
The term ‘hormone’ was coined first by Starling (1906) in animal physiology. The internal factors that influence growth are called growth hormones or growth regulators as they inhibit, promote, or modify the growth. Growth promoters are auxins, gibberellins (GA), and cytokinins (CK). Growth inhibitors in plants are ethylene and abscissic acid (ABA).
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संबंधित प्रश्न
Which hormone is known as a stress hormone in plants? Why?
Which among the following is NOT a physiological role of abscisic acid?
Which physiological activity is NOT influenced by abscisic acid?
______ is growth inhibitor.
The substance that triggers the fall of mature leaves and fruits from plants is due to
______ hormone is responsible for the efflux of K+ ions from guard cells and acts as an antitranspirant.
Bud dormancy is induced by ______.
Name the plant hormone which is responsible for the following effect:
Falling of leaves
A growth inhibiting hormone in plants:
The hormone which accelerates senescence (ageing) and abscission of leaves is ______.
