1
Question
Question 20
The substance that triggers the fall of mature leaves and fruits from plants is
(a) auxin
(b) gibberellin
(c) abscisic acid
(d) cytokinin
Question 20
The substance that triggers the fall of mature leaves and fruits from plants is
(a) auxin
(b) gibberellin
(c) abscisic acid
(d) cytokinin
Open in App
Solution
(c) abscisic acid
Abscisic acid is the plant hormone which inhibits growth. Its role is the abscission of plant leaves which include wilting of leaves. In preparation for winter, ABA is produced in terminal buds. This slows plant growth and directs leaf primordia to develop scales to protect the dormant buds during the cold season.
Abscisic acid is the plant hormone which inhibits growth. Its role is the abscission of plant leaves which include wilting of leaves. In preparation for winter, ABA is produced in terminal buds. This slows plant growth and directs leaf primordia to develop scales to protect the dormant buds during the cold season.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
