Effect of metabolic inhibitors and temperature on uptake and translocation of ca and k by intact bean plants.

The dependence of Ca uptake and translocation by intact roots of Phaseolus vulgaris on concurrent root metabolism was investigated using (45)Ca-labeled Hoagland solutions at one-half and one-twentieth strength (2.5 and 0.25 mM Ca(2+)).

The photosynthetic action spectrum of the bean plant.

The photosynthetic action spectrum of the bean plant leaf, Phaseolus vulgaris L. (variety Red Kidney), has been determined with a diffraction grating illuminated by a 6500-watt xenon arc. An infrared CO(2) analyzer was used to determine the gross photosynthetic rate of the terminal leaflet of the first trifoliate leaf.