Which PGR is most likely responsible for the phenomenon observed when a plant bends towards a light source, even if the light source is unidirectional and doesn't illuminate the entire plant?
Cytokinin
Gibberellin
Auxin
Abscisic Acid
Related Questions
Which PGR was isolated from tips of coleoptiles of oat seeding by F.W. Went?
Auxin
Cytokinin
Gibberelin
Abscisic acid
Which plant growth regulator is sprayed on sugarcane crops to increase stem length and yield?
Auxins
Gibberellins
Cytokinins
Abscisic acid
Which plant growth regulator is applied to sugarcane crops to stimulate stem elongation and enhance sugar yield?
Auxins
Gibberellins
Cytokinins
Abscisic acid
I. Indole-3-acetic acid
II. 2-4, dichlorophenoxy acetic acid
III. 6 Indole butyric acid
IV. Naphthalene acetic acid
Above are the examples of which PGR?
Auxin
Cytokinin
Ethylene
Gibberellin
Which of the following plant hormones would be least effective in increasing the yield of a sugarcane crop by promoting growth?
Gibberellin
Auxin
Cytokinin
Abscisic acid
Farmers often use a specific plant hormone to boost sugarcane yield. This hormone primarily affects which aspect of the plant's growth?
Root Development
Flowering
Fruit Ripening
Stem Elongation
Gibberellic acid is known to promote stem elongation in sugarcane, leading to increased sugar production. Which of the following best describes the primary effect of gibberellins on plant cells in this context?
Increased cell division
Increased cell differentiation
Increased cell elongation
Decreased cell senescence
Which of the following phytohormones is used to shorten the time to seed production in young conifer trees?
Auxins
Cytokinins
Gibberellins
Abscisic Acid
Which of the following best explains why auxin can be used to create weed-free lawns without harming the grass?
Grasses absorb auxin more slowly than weeds
Auxin promotes grass growth while inhibiting weed growth
Differential sensitivity to auxin in monocots and dicots
Grasses metabolize auxin more efficiently than weeds
