The Absorption and Translocation of Sulfur in Red Kidney Bean.

Abstract
There is a constant relationship between dry matter yield and sulfur content of plant parts over the nutrient range of 0.125 and 1.0 mM S. Trifoliate leaves and roots have a higher sulfur content than stems and primary leaves, and sulfur content did not vary with the pH of the medium. A portion of the absorbed sulfur reaching mature leaves is subject to re-exportation but the sulfur of seed origin is less mobile. The rate of downward translocation of sulfur in the phloem of the stem exceeds 40 cm/hr. and the concn. of the mobile fraction in the stem is logarithmic with respect to distance traveled.
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