A plant hormone promotes bolting in rosette plants and is also antagonistic to the effects of abscisic acid on alpha-amylase activity. This hormone also plays a key role in apical dominance. Which of the following hormones fits this description?
Gibberellin
Auxin
Cytokinin
Ethylene
Related Questions
Cytokinins are mostly
Glucosides
Amino purines
Acidic
phenolic
Difference between kinetin and zeatin is
Kinetin is active zeatin, is non-active
Zeatin is active kinetin, is non-active
Zeatin is synthetic, kinetin is natural
Zeatin is natural, kinetin is synthetic
The cut flowers and vegetables can be kept fresh for a long period by this plant hormone.
Gibberellins
Cytokinins
Auxins
Ethylene
Difference between kinetin and zeatin is
Kinetin is active zeatin, is non-active
Zeatin is active kinetin, is non-active
Zeatin is synthetic, kinetin is natural
Zeatin is natural, kinetin is synthetic
Choose the incorrect pair.
Auxins – To grow
Gibberellins – Gibberella fujikuroi
Cytokinins- Herring sperm DNA
Abscisic acid – Flowering hormone
Ageing is retarded by
ABA
CKN
GA
Spraying a young conifer with which hormone would NOT likely hasten maturity and seed production?
Gibberellins
Ethylene
Cytokinins
Abscisic acid
The following statements are given about plant growth hormones:
I.Cytokinins suppress the synthesis of chlorophyll.
II.Auxins control apical dominance.
III.Gibberellins promote shoot elongation.
IV.Abscisic acid enabling seeds to withstand desiccation.
Which of the above statements are correct?
I and II
II and III
I and III
II, III and IV
Cytokinins are mostly
Glucosides
Amino purines
Acidic
phenolic
Natural cytokinins are synthesized in tissue that are
Senescent
Dividing rapidly
Storing food material
Differentiating
