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Software for Measuring Root Characters from Digital Images

Dep. of Crop and Soil Sci., The Univ. of Georgia, 1109 Experiment St., Griffin, GA 30223-1797

View larger version (17K): [in a new window]   Fig. 1. Length of pseudo roots measured by 10 operators for 10 different images. Each point shows the average across images and operators for length apportioned into (a) 0.1-mm-diam. classes or (b) 0.3-mm-diam. classes. Vertical bars represent standard error of means; error bars do not show in (b) because they are smaller than the data points. Values above each point represent coefficient of variation in percent.