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Question
Which of the following hormones is known to promote maleness in flowering plants?
Which of the following hormones is known to promote maleness in flowering plants?
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Solution
The correct option is A Gibberellic acid
Gibberellins affect several reproductive processes in plants.They stimulate flowering, particularly in long-day plants. Gibberellins are known to stimulate maleness in flowering plants as compared to auxin, cytokinin and ethylene all three of which are known to promote femaleness. In addition, gibberellins substitute for the low temperature that biennials require before they begin flowering. If gibberellins are applied to biennials during their first year of growth, flowering occurs without exposure to a period of low temperature. Gibberellins, like auxin, affect fruit development. Agriculturalists apply gibberellins to several varieties of grapes to produce larger fruits.Thus, the correct answer is option A.
Gibberellins affect several reproductive processes in plants.They stimulate flowering, particularly in long-day plants. Gibberellins are known to stimulate maleness in flowering plants as compared to auxin, cytokinin and ethylene all three of which are known to promote femaleness. In addition, gibberellins substitute for the low temperature that biennials require before they begin flowering. If gibberellins are applied to biennials during their first year of growth, flowering occurs without exposure to a period of low temperature. Gibberellins, like auxin, affect fruit development. Agriculturalists apply gibberellins to several varieties of grapes to produce larger fruits.
Thus, the correct answer is option A.
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