Word: germplasm
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...Carnegie Institution, reported discovery of a new plant hormone which he calls colchicine. It increases the growth rate of tobacco, phlox, onions, pumpkins, cosmos, radishes, portulaca, digitalis, jimson weed. The growth acceleration seems to be related to a doubling of certain segments of the chromosomes, heredity carriers in the germplasm. Colchicine also renders hybrid plants-which are normally sterile-fertile. Dr. Blakeslee pointed out that this action is as important in plant science as it would be in zoology to confer the power of reproduction on a mule...
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