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Aims This study evaluated how different nitrogen forms affect growth and photosynthetic responses of cassava to CO2 concentration. Methods Cassava was grown in 14-L pots in a greenhouse at 390 or 750 ppm of CO2. Three nitrogen treatments were applied: (a) 12 mM NO3−, (b) 6 mM NO3− + 6 mM NH4+, and (c) 12 mM NH4+. Results Thirty-six days after treatments began, plants grown under elevated CO...
Gas exchange and water relations responses to warming were compared for two shrub species, Artemisia tridentata spp. vaseyana (Asteraceae), a widely distributed evergreen species of the Great Basin and the western slope of the Rocky Mountains, and Pentaphylloides floribunda (Rosaceae), a deciduous shrub limited in distribution to moist, high-elevation meadows. Plants were exposed to an in situ infrared...
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