Advertisements
Advertisements
प्रश्न
Identify the growth hormone in plants which causes inhibitory effect.
पर्याय
Cytokinins
Abscissic acid
Gibberellin
Ethylene
Advertisements
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).
APPEARS IN
संबंधित प्रश्न
______ causes cell elongation, apical dominance and prevents abscission.
Which physiological activity is NOT influenced by abscisic acid?
How abscisic acid helps plants to overcome stress?
Which plant hormone promotes dormancy in seeds and buds?
______ hormone is responsible for the efflux of K+ ions from guard cells and acts as an antitranspirant.
Abscisic acid is the common name given to two identical substances isolated separately. Name them.
Give the chemical features of abscisic acid.
Name the stress hormone in plants.
______ is also called as "stress hormone''.
The abscissic acid acts as antitranspirant in plants by the following processes EXCEPТ ______.
