Studies in the Influence of Sunlight upon the Development, and especially on the Metabolism, of certain plants

II. Communication: The Effect of Light Intensity on the quantities of water, Ash and Total Nitrogen contained in Pisum sativum and a few other plants

Abstract

The formative influence of illumination upon plants has been reported by the writer in the first communication.
In this paper the effect of sunlight on the chemical composition of Pisum sativum etc. wss studies under three different light intensities respectively. The influence of the illumination upon the composition of plants was as ffollows:
1. The amount of total nitrogen in each plant was not influenced by light.
2. The amount of ash was proportional to the intensity of illumination.
3. The amount of water in plants varied inversely with the intensity of the light.