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

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Abstract
The respiratory rate, soluble N, protein N, water, reducing sub- stance, and sucrose content of each of the 4 quarters of the 1st leaf of Khapli wheat were detd. after different exposures to light under standardized conditions. The respiratory rate of the different quarters and of the leaf as a whole is not detd. by the distr. of any of the above mentioned constituents. Protein, water, and sucrose distr. appear to be correlated with the anatomy of the leaf. Leaf anatomy is apparently an important consideration in the physiological heterogeneity of the 1st leaf of wheat.