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  4. Who observed that from the internodal segments of tobacco stems the callus proliferated only if, in addition to auxins the nutrients medium was supplemented with one of the following: extracts of vascular tissues, yeast extract, coconut milk or DNA?

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Q. Who observed that from the internodal segments of tobacco stems the callus proliferated only if, in addition to auxins the nutrients medium was supplemented with one of the following: extracts of vascular tissues, yeast extract, coconut milk or DNA?

Plant Growth and Development

Solution:

F. Skoog and co-workers observed that from the internodal segments of tobacco stems the callus pro liferated only if, in addition to auxins the nutrients medium was supplemented with one o f the following: extracts of vascular tissues, yeast extract, coconut milk or DNA