Abstract
Members of the Characeae have been used extensively in various investigations including ion accumulation, cyclosis, and cytoplasmic permeability, yet investigations on mineral nutrition and the effects of light and temperature have been meager. Concerning temperature effects Karling, 1924, using cultures of Chara fragilis Desvaux, concluded that formation of reproductive structures depended primarily on the length of day, and secondarily on temperature. The purpose of the present investigation was to determine certain growth responses of another species of Chara to the influence of temperature.
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