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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
Name the plant hormone which is responsible for the following effect:
Closing of stomata
______ causes stomatal closure.
Which among the following is NOT a physiological role of abscisic acid?
How abscisic acid helps plants to overcome stress?
Abscisic acid functions as
Give the chemical features of abscisic acid.
Name the plant hormone which is responsible for the following effect:
Falling of leaves
______ and ______ induce chemotropism of angiosperms and gymnosperms.
______ is also called as "stress hormone''.
Define the following term:
Abscission
