Physiological and biochemical studies in plant metabolism. IV. Effect of illumination and darkness on the physiological heterogeneity in the first leaf of wheat

摘要

The respiratory rate, soluble nitrogen content, protein nitrogen content, water content, reducing substance content, and sucrose content of each of the four quarters of the first leaf of Khapli wheat have been determined after different exposures to light under standardized conditions. The respiratory rate of the different quarters of the leaf as a whole is not determined by the distribution of any of the above mentioned constituents. Protein, water, and sucrose distribution appear to be correlated with the anatomy of the leaf. Leaf anatomy is apparently an important consideration in the physiological heterogeneity of the first leaf of wheat.