Ethylene and Carbon Dioxide in the Regulation of Initial Growth in Sagittaria trifolia L.

Abstract

Initial growth of Sagittaria trifolia shoots in darkness from tubers was controlled by ethylene and carbon dioxide. The initial growth was reduced in air from which ethylene and/or carbon dioxide had been removed compared to growth in air where endogenously evolved ethylene and carbon dioxide were present. Growth was maximum in air where both ethylene and carbon dioxide were present. The ethylene concentration that induced maximum growth was 10μL L^-1.