Abstract
Summary
Solutions of ethyl carbamate or urethane were studied in different concentrations as regards their influence on root growth of Lupinus albus seedlings. It was found that whereas normal seedlings are very little affected by the drug, other seedlings of an abnormal type were very sensitive to urethane. Specifically, it was found that yarovized or vernalized seedlings are extremely sensitive to even dilute solutions of the drug and the same was found to be true of seedlings which were irradiated with hard X-rays in doses of 500 r.∗
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