Advertisements
Advertisements
Question
Identify the growth hormone in plants which causes inhibitory effect.
Options
Cytokinins
Abscissic acid
Gibberellin
Ethylene
Advertisements
Solution
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).
APPEARS IN
RELATED QUESTIONS
Most of the plant hormones promote plant growth. A plant hormone which inhibits growth is ______.
______ causes stomatal closure.
Adverse environmental condition results in production of ______ in plants.
Abscisic acid functions as
Which phytohormone can be categorised as stress hormone?
Increase in abscisic acid (ABA) concentration causes ____________ in plants.
The substance that triggers the fall of mature leaves and fruits from plants is due to
A growth inhibiting hormone in plants:
______ is also called as "stress hormone''.
The abscissic acid acts as antitranspirant in plants by the following processes EXCEPТ ______.
