A field study was conducted to evaluate tolerance of pecan rootstocks soil salinity and sodicity. Seven cultivars—Elliott, Giles, Ideal, Peruque, Riverside, ‘Shoshoni, VC1-68—were selected from a range geographic regions origin. The the experimental plot poorly drained, saline–sodic Pima silty clay variant. irrigation water moderately saline mix Gila River local groundwater with an electrical c...

A serologically active substance was extracted from cells of Hemophilus aegyptius with dilute NAOH. This substance directly hemagglutinated human erythrocytes. The activity of this material was demonstrated at a near neutral pH and was precipitated at acid pH. Preliminary biochemical determination showed this serologically active material to be predominately polysaccharide. Davis, Pittman, and ...

Pedogenesis and clay mineralogy of soils and rock samples were studied in a transect of calcareous, gypsiferous, saline soils and sediments of Bakhtegan lake bank in southern Iran. The main objectives of study were to determine the occurrence of clay minerals and factors controlling their distribution pattern and relative abundance in soils and parent materials. The soil parent material is high...

The generation of activity-evoked extracellular alkaline shifts has been linked to the presence of external Ca(2+) or Ba(2+). We further investigated this dependence using pH- and Ca(2+)-selective microelectrodes in the CA1 area of juvenile, rat hippocampal slices. In HEPES-buffered media, alkaline transients evoked by pressure ejection of RS-alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic ...