Effect of Ultraviolet Radiation on Growth and on the Calcium and Phosphorus Contents of Plants
- 1 December 1934
- journal article
- research article
- Published by University of Chicago Press in Botanical Gazette
- Vol. 96 (2) , 330-341
- https://doi.org/10.1086/334474
Abstract
Three series of plants, including sunflower, tomato, cucumber, soy beans, nasturtium, and corn, were grown entirely with artificial radiation under 3 ranges of wave lengths,[long dash]2650-7200 A, 2900-7200 A, and 3130-7200 A. The results indicate that wave lengths 2900-3100 A increase the dry weight and the calcium content, and have little effect on the P content; and that wave lengths shorter than 2900 A are injurious and have little effect on Ca and P content. Spectrograms show that the upper epidermis transmits radiations shorter than 2900 A but that these rays are absorbed by the remainder of the leaf.Keywords
This publication has 1 reference indexed in Scilit:
- The Role of Phosphorus in the Metabolism of PlantsAmerican Journal of Botany, 1931