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Q.
The natural plant hormone isolated from corn kernels and coconut milk is
Plant Growth and Development
Solution:
Zeatin ($6$-hydroxy-$3$-methyl-$2$-trans butenylaminopurine) was the first natural cytokinin isolated by Letham et. al. in $1964$ from unripe maize grains or kernels. It is also isolated from coconut milk, peas, spinach, wheat, cotton, potato tubers and other parts. Cytokinins are plant hormones which are basic in nature, are either aminopurine or phenyl urea derivatives that promote cell division (cytokinesis) either
alone or in conjunction with auxin.