Evaluation location: Wisconsin, United States
METHOD: Chemical Assay CONDITIONS: Green House - 14h declining to 9h METHOD NARR: Plants were watered with either of 2 nutrient solutions. The control watering solution was 1/4 strength Hoagland's solution. The treatment solutiing the control solution to 800 ppm calcium with calcium chloride. Tuber tissue was processed and assayed for overall ppm calcium on a dry weight basis on whole tubers by atomic absorption spectrophotometry. The mean tuberl unit was calculated. RESULTS NARR: Where (T) = treatment and (C) = control the (T-C) statistic represents the efficiency of accumulation of supplemental calcium. The (C) statistic represents the ability of tubers to accumumented calcium environment. AUTHOR EXPLANATION: The observed decrease in calcium ppm associated with larger tubers is not associated with the decreased proportion of peel tissue in larger tubers, but suggests that some of the specieger tubers are also poor calcium accumulators.