Advertisements
Advertisements
प्रश्न
The hormone which accelerates senescence (ageing) and abscission of leaves is ______.
विकल्प
IAA
GA3
ABA
GA1
Advertisements
उत्तर
The hormone which accelerates senescence (ageing) and abscission of leaves is ABA.
Explanation:
The hormone Abscisic Acid (ABA) is responsible for the abscission of foliage and the acceleration of senescence (ageing). It is an inhibitor of growth.
संबंधित प्रश्न
Bring out any two physiological activities of abscisic acid?
Which among the following is NOT a physiological role of abscisic acid?
Which of the following is not associated with growth of plant?
The main function of abscisic acid in plants is to
______ hormone is responsible for the efflux of K+ ions from guard cells and acts as an antitranspirant.
Give a reason – ABA is also known as an antitranspirant.
Describe abscissic acid physiological effects.
Name the plant hormone which is responsible for the following effect:
Falling of leaves
Identify the growth hormone in plants which causes inhibitory effect.
______ and ______ induce chemotropism of angiosperms and gymnosperms.
