wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Common cause of seed and bud dormancy is the presence of

A
Ethylene
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Cytokinins
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Abscisic acid
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Both B and C
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A Abscisic acid

Dormancy is defined as the condition of seed when it fails to germinate even though the environment conditions, usually considered favorable for active growth, are present.

A. Ethylene serves as a hormone in plants. It acts at trace levels throughout the life of the plant by stimulating or regulating the ripening of fruit, the opening of flowers, and the abscission (or shedding) of leaves.

B. Cytokinins are plant hormones that cause increased cell division by stimulating the process of mitosis.

C. Abscisic acid owes its name to its role in the abscission of plant 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.

So, the correct answer is 'Abscisic acid'.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Reacting to Abiotic Factors
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon