How many of the following auxins are obtained from plants?
IAA, IBA, NAA, 2, 4-D
NAA stands for ______.
[A] Nitro-acetic acid
[B] Nitro aceto acetate
[C] Naphthalene acetic acid
[D] Naphthaloaceto acetic acid
2, 4-D stands for _____
[A] 2,4—Dichlorophenoxy acetate
[B] 2, 4—Dextrophenoxy acetate
[C] 2, 4-Diphosphenoxy acetate
[D] 2, 4-Dichloromethoxy acetate
Synthetic auxins are extesively used in
Natural auxins are extensively used in
Which effect of auxin is applied worldwide for plant propagation?
[A] Apical dominance
[B] Herbicidal action
[C] Initiate rooting in stem cutting
Auxins promote flowering in
What prevents fruit and leaf to drop in early?
[D] Both (b) and (c)
What promotes abscission of older mature leaf?
[A] Abscisic acid
In most higher plants, the growing apical bud inhibits growth of lateral bud. This phenomena is called
[A] Apical tolerance
[B] Axial intolerance
[C] Apical ordinance
[D] Apical dominance
What can help removing apical dominance?
[A] Removal of shoot tips
[B] provide plant with a lot of auxin
The process of removal of shoot tip to avoid apical dominance is called _____
Decapitation is widely used for
[A] tea plantation.
Which of the following PGR can induce parthenocarpy?
Auxins induce parthenocarpy in which plants?