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Thesis (M.S.)--University of Nebraska--Lincoln, 1953. Department of Agronomy.


Copyright 1953, the author. Used by permission.


The purpose of this study was to determine the relative rate of development, cold resistance and winter hardiness, summer survival from spring planting, and salt and alkali tolerance of the seedlings of the two strains of tall wheatgrass, one strain of intermediate wheatgrass (Agropyron intermedium (Host) Beav.), and one strain of smooth bromegrass (Bromus inermis Leyess.). The grasses were compared in nursery plantings at Lincoln and North Platte, Nebraska, and in the greenhouse. Relative cold resistance was measured with artificial freezing tests.

Relative winter survival of the four grasses was determined in field plantings made in late summer and early fall of 1951 at three locations, i.e., the Agronomy Farm, Lincoln, Nebraska, and two sites on the Nebraska Agricultural Experiment Station near North Platte. Relative summer survival was determined in plantings made in early and mid-April, 1952, on the same sites. Evidence of winter injury was found only in the Turkish strain of tall wheatgrass. Average summer survival of each of the grasses for the six spring plantings was: Lincoln bromegrass, 76%; Turkish tall wheatgrass, 62%; Nebraska-50 intermediate wheatgrass, 39%; Russian tall wheatgrass, 35%.

Advisor: E. C. Conard.