Variety Differences in Strontium and Calcium Accumulation in Seedlings of Barley

Young, W. I.; Rasmusson, D. C.

Variety Differences in Strontium and Calcium Accumulation in Seedlings of Barley

1966

Young, W. I. | Rasmusson, D. C.

Sixteen barley varieties were employed in a study of intraspecific differences in Ca and Sr accumulation. The effect of Ca/St ratio, pH, and various Sr-89 concentrations and durations of feeding on variety differences were evaluated. Significant differences were observed for Ca and Sr accumulation among varieties of barley seedlings grown in nutrient solution. Varieties high in Sr accumulation also were high in Ca accumulation. Two-fold differences in accumulation were observed for both Ca and Sr-89. The ratio of Ca to Sr in the nutrient solution had little affect on variety differences in accumulation of Ca or St. However, there was evidence that varieties differed in ratio of Ca to Sr accumulated in the shoots. The pH of the solution did not affect total Sr-89 accumulation or variety differences. Both concentration and duration of feeding had a marked effect on total Sr-89 accumulation, but no effect on variety differences.

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