VARIETAL DIFFERENCES IN CALCIUM LEVEL IN LEAVES OF FLUE-CURED TOBACCO

1 April 1963

journal article
Published by Canadian Science Publishing in Canadian Journal of Plant Science

Vol. 43 (2) , 141-145
https://doi.org/10.4141/cjps63-024

Abstract

Radioactivity measurement of leaf samples of tobacco plants following a 6-day absorption period in Ca⁴⁵-labelled nutrient solution was found to be a rapid test for varietal differences in calcium uptake. Using this method, significant differences in the uptake of calcium were found among varieties and strains of flue-cured tobacco and the ranking of the calcium uptake potential of five strains of tobacco agreed with that obtained by chemical assay. The concentration of Ca⁴⁵ in the leaf tissue was highest in Delcrest and Hicks, lowest in White Mammoth, and intermediate in Virginia Gold, White Gold, and Jadel. The same ranking of these varieties was obtained when the plants were grown in soil with added Ca⁴⁵ for a 7-week absorption period. The importance of these tests is based on the findings of other workers that leaf content of calcium is inversely related to quality.

Keywords

This publication has 0 references indexed in Scilit: