. Absorption and excretion of salts by roots, as influenced by concentration and composition of culture solutions. Roots (Botany); Peas. 24 ABSORPTION" AND EXCRETION OF SALTS BY BOOTS. These results indicate (1) that in solutions (Nos. 2-12) 10 times as concentrated as solutions near equilibrium concentration (Nos. 1 9 . and 13), a magnesium to calcium ratio of r is as favorable to absorp- tion as calcium alone; and (2) that the most efficient absorption takes place from solutions with magnesium and calcium present in approxi- 5 mately equivalent concentrations, i. e., in the ratio p. Sin
. Absorption and excretion of salts by roots, as influenced by concentration and composition of culture solutions. Roots (Botany); Peas. 24 ABSORPTION" AND EXCRETION OF SALTS BY BOOTS. These results indicate (1) that in solutions (Nos. 2-12) 10 times as concentrated as solutions near equilibrium concentration (Nos. 1 9 . and 13), a magnesium to calcium ratio of r is as favorable to absorp- tion as calcium alone; and (2) that the most efficient absorption takes place from solutions with magnesium and calcium present in approxi- 5 mately equivalent concentrations, i. e., in the ratio p. Since in this. Fig. 12.—Seedlings of culture 3, experiment 3. experiment the solutions of equivalent concentration were 10 times as dilute as in experiments A and B, it is interesting to note that the same ratio of magnesium to calcium as in those experiments sufficed to bring about perfect root development. In the figures illustrating the more significant cultures of this series note especially the contrast between the effects of 10 M Mg and 9M 50,000 Mg + M 50,000"to -"* 50,000"* ' 50,000 and 12; cf. figs. 1 and 8); the general similarity of cultures in Ca (figs. 11 9M 50,000 231. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original True, Rodney H. (Rodney Howard), 1866-1940; Bartlett, Harley Harris, 1886-1960; United States. Bureau of Plant Industry. Washington, D. C. : Government Printing Office
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrootsbo, bookyear1912
