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6-furfuryl amino purine, 2-4 dichlorophenoxy acetic acid and indole-3 acetic acid are examples respectively for |
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a) |
Synthetic auxin kinetin and natural auxin |
b) |
Gibberellins, natural auxin and kinetin |
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c) |
Natural auxin, kinetin and synthetic auxin |
d) |
Kinetin, synthetic auxin and natural auxin |
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6-furfuryl amino purine, 2-4 dichlorophenoxy acetic acid and indole-3 acetic acid are examples respectively for |
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a) |
Synthetic auxin kinetin and natural auxin |
b) |
Gibberellins, natural auxin and kinetin |
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c) |
Natural auxin, kinetin and synthetic auxin |
d) |
Kinetin, synthetic auxin and natural auxin |
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(d) The first cytokinin was discovered from, degraded autoclaved herring sperm DNA by Miller et al. 1995. It is called kinetin (6-furfurly amino-purine). Kinetin does not occur naturally. Many synthetic auxins are also manufactured. The important ones are 2, 4, D (2, 4-dichlorophenoxy acetic acid). 2, 4, 5-(2, 4, 5-Trichlorophenoxyacetic acid) and Naphthalene acetic acid (NAA). |