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The continued testing of varieties of small grains to changing conditions of climate is one important phase in research investigations on wheat, barley, rye cats and flax. Variety tests are conducted at several scattered points in South Dakota to sample some of the factors influencing yields in the various agricultural areas. These trials measure the relative performance of the various standard and recommended varieties. They also serve to establish the comparative merits of new or relatively untested strains. Information obtained in these tests is the basis for making varietal recommendations for the guidance of South Dakota farmers, and for providing the producer with information on the performance of varieties in which he may be interested. For the future, these tests permit the selection of new strains adapted to a wide range of environmental conditions, and may suggest new problems for the plant breeder. Several seasons are often necessary to obtain a true picture of the performance of any given variety; the longer a variety is tested, the more complete the information on it will be. In this report, the 1952 yield and performance data of a limited number of small grain varieties are presented. Annual yields of the same strains during the period 1948-51 given when available, as arc applicable yield averages for the entire 5 year period.

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Agricultural Experiment Station, South Dakota State College