Auxin in plant is not meant for
Auxin in plant is not meant for
Options
(a) Cell elongation (b) Fruit ripening (c) Cell division (d) Inhibit the root growth
Correct Answer:
Fruit ripening
Explanation:
Because ethylene is responsible for ripening […]
Plant Growth and Development
Apical dominance is not affected by
Apical dominance is not affected by
Options
(a) Indole acetic acid (b) Gibberellic acid (c) Indole acetaldehyde (d) Indole butyric acid
Correct Answer:
Gibberellic acid
Explanation:
GA promote only plant elongation but the […]
An excised leaf does not turn yellow if it is induced to root This is attributed
An excised leaf does not turn yellow if it is induced to root. This is attributed to synthesis in root of or Leaf agins is retarded by
Options
(a) Ethylene (b) Cytokinins (c) […]
Abscisic acid treatment results in
Abscisic acid treatment results in
Options
(a) Leaf expansion (b) Stem elongation (c) Stomatal closure (d) Root elongation
Correct Answer:
Stomatal closure
Explanation:
ABA inhibits the H⁺ | K⁺ exchange and promotes the […]
Morphactins are
Morphactins are
Options
(a) Synthetic growth regulators (b) Synthetic auxins (c) Synthetic gibberellins (d) None of the above
Correct Answer:
Synthetic growth regulators
Explanation:
Morphactins are synthetic growth regulators which act in variety […]
Which pigment is responsible for flowering in plant
Which pigment is responsible for flowering in plant?
Options
(a) phytochrome (b) cytochrome (c) anthocyanin (d) xanthophyll
Correct Answer:
phytochrome
Explanation:
Phytochrome is a pigment involved in the perception of photoperiodic stimuli controlling […]
Which one of the following hormone induces flowering
Which one of the following hormone induces flowering?
Options
(a) auxin (b) florigen (c) cytokinins (d) gibberelin
Correct Answer:
florigen
Explanation:
The chemical which induces flower formation has been named as florigen. By […]
Which of the following inhibits the growth of lateral auxillary buds
Which of the following inhibits the growth of lateral auxillary buds?
Options
(a) auxin (b) ethylene (c) cytokinin (d) gibberellin
Correct Answer:
auxin
Explanation:
Apical dominance is the phenomenon of suppression of growth […]
Which hormones promote the flowering in long day plants and also control sex
Which hormones promote the flowering in long day plants and also control sex expression in certain species?
Options
(a) ethylene (b) gibberellin (c) cytokinins (d) auxin
Correct Answer:
gibberellin
Explanation:
Gibberelins are growth […]
Which hormone is maximum in coconut milk
Which hormone is maximum in coconut milk?
Options
(a) gibberellin (b) ethylene (c) cytokinin (d) auxin
Correct Answer:
cytokinin
Explanation:
Capability of induction of cell division was observed in wounded potato tuber (Haberlandt, […]