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प्रश्न
Identify the growth hormone in plants which causes inhibitory effect.
विकल्प
Cytokinins
Abscissic acid
Gibberellin
Ethylene
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 plant hormone is responsible for the wilting and falling of leaves?
Name the plant hormone which is responsible for the following effect:
Closing of stomata
Which of the following phytohormone is not associated with the promotion of growth in plants?
Adverse environmental condition results in production of ______ in plants.
Abscisic acid functions as
Abscisic acid is a ____________ chemically.
Increase in abscisic acid (ABA) concentration causes ____________ in plants.
The main function of abscisic acid in plants is to
Abscisic acid is the common name given to two identical substances isolated separately. Name them.
Give a reason – ABA is also known as an antitranspirant.
