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The first natural cytokinin was obtained from
Option: 1
Herring sperm DNA
Option: 2
Unripe maize grains or kernels
Option: 3
Tobacco pith
Option: 4
Shoot apex of Avena
Answers (1)
The first natural cytokinin was obtained from unripe maize grains or kernels by Letham (1964). It is known as zeatin (6-hydroxy 3-methyl trans 2-butenyl amino-purine).
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