Growth and Differentiation of Atropa belladonna L. as Affected by Different Sources of Nitrogen*

Abstract

Growth and morphology were compared on plants furnished six levels of nitrate and three of ammonia in water culture. The production of dry weight with ammonia was significantly greater than with nitrate. Ratios of shoot/root and leaf/stem indicated that use of the nitrogen was very different at low vs. high levels, particularly with ammonia nitrogen.