Abstract
Abstract Plants of tomato (Lycopersicon esculentum Mill. cv. Roma) and black locust (Robinia pseudoacacia L.) were desiccated until continuous wilting was observed and then were irrigated to determine the effects of dehydration and subsequent rehydration on net assimilation, dark respiration, xylem pressure potential and leaf diffusive resistance. After-effects of water stress on dark stomatal aperture were observed in both species and on light stomatal aperture in black locust. Tomato plants appeared less able both to avoid and tolerate desiccation stress than did black locust plants.
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