Measurement of heterotrophic plant growth is important for evaluating seed or seedling vigor. Hand measurement of large numbers of germinants and seedlings is tedious, can injure young plants, and is often inexact when curved roots are involved. Using the Cobb-Jones germination method with a digitizing tablet, a personal computer, apparatus, and methods we developed, reduces the time, tedium, injury, and guesswork often associated with hand measurements. Evaluation of measurement precision using our methods indicates that repeated measurements of individual germinants/seedlings will have average differences that are less than 1.0 mm. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.