Abstract
Growth of pecan (Carya illinoensis (Wangenh.) C. Koch `Melrose') and pear (Pyrus calleryana Decne. `Bradford') trees in the nursery was greater in containers designed to hold water in the lower portion. The water-holding reservoir was obtained either by placing 76 liter containers in a frame holding water to a depth of 5 cm, or by using containers with drainage holes 5 cm above the bottom. The continuous waterlogging at the bottom of the containers resulted in root pruning and root death in the lower portion of the containers, but roots grew well above the constantly-wetted zone. Fresh weight of tops, caliper, and plant height were all greater after two growing seasons in the containers with water reservoirs compared to similar containers with no water reservoirs.
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