explain cytokinin and gyberllines.
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Answer:
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Explanation:
Gibberellin was first extracted from fungus Gibberella fujikuroi ....Many types of gibberellins have been isolated among which GA3 (gibberellic acid) is more well studied and common in plants ....there are 100 different gibberellins(GA) .....all GA are acidic in nature .... gibberellins are widely used in agriculture and horticulture... most important eff of GA is stem elongation...GA also promote seed germination and break dormancy of buds and tubers ...also promote flowering...also increase the leaf and flowers sizes in plants ...also induce parthenocarpy
cytokinin is a growth regulator discovered by skoog and his coworkers...specific property is to promote cell division..cytokinin were discovered from sperm DNA ... cytokinin found in root apices developing shoot buds young fruits cytokinin. has antagonistic property with auxin cytokinin reduce apical dominance and cause delay in senescence
Cytokinins (CK) are a class of plant growth substances (phytohormones) that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence.
Gibberellins are growth hormones that stimulate cell elongation and cause plants to grow taller. Gibberellins also have a role in other plant processes, such as stem elongation, germination, flowering, and fruit ripening.
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