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Plant Growth and Development
Question
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First natural cytokinin was discovered by :

  • Skoog and Miller

  • Letham

  • Benson and Calvin

  • Thimann and Went

Answer

B.

Letham

First natural cytokinin was obtained from unripe maize grains or Kernels. It is known as zeatin or 6- hydroxy 3- methyl trans butenyl amino purine.

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