Tob. Sci., 1969, 13-08, p. 22-24, ISSN.0082-4623
An instrument for nondestructive measurement of total chlorophyll in tobacco
Biological Agricultural Engineering, North Carolina State University, Raleigh, North Carolina USA
An instrument is described for nondestructively measuring the chlorophyll concentration in tobacco leaves. It has a range from approximately 10 to 2000 micrograms per gram of fresh weight. The instrument was calibrated by matching instrument readings with chemical determinations of chlorophyll. The readings were complimentary from year to year. Advantages of the instrument and various applications are discussed.
(Full article published with kind permission from "Tobacco International")