Abstract
In a greenhouse pot pulture experiment, uniform seedlings of two Iranian pistachio cultivars (Pistacia vera L.) previously established in sand were transferred into pots containing Moreno soil from California and treated with 0, 1, 2, 4 and 8 μg B per g soil on the soil basis. Analysis of plant parts revealed that uptake by all parts increased with increasing rates in both soils and more B was retained by senescent parts, but differentially by the two cultivars. None of B levels had any adverse effect on vegetative growth in eight weeks even with shoot B concentrations of over 300 μg/g in the old leaves. Calcium partitioned like B did.