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Show WHEAT ON DRY FARMS Diagram and Illustrations Given to Help the Farmer. Results Obtained by the State Agricultural Agri-cultural Experiment Stations and the United States Department of Agriculture. Every spring-wheat grower wants to know whether to grow common or durum wheat on his farm. Farmers' Bulletin No. 680, by means of diagrams dia-grams and pictures endeavors to help the farmer in the Great Plains area to answer this question satisfactorily. Fig. 1. is a chart showing wheat yields at 17 different experiment stations sta-tions in the Great Plains area. These re- taj 1 in MA .. ils; uraew f SOUTH Dakota m , n m, 3L if . I " u1. COLORADO ,W -KANSAS JL hT NM EX1C0 TEXAS joXLAHOMA : I Jr, ,fe8. I "Pia 1. f Fig. 1. Diagram Showing Average Yields, in Certain Periods of Years, of the Leading Variety of the Different Dif-ferent Groups of Wheat at 17 Stations Sta-tions in the Great Plains Area. 1, Average of Only Three Years (Blue-stem (Blue-stem at Moccasin and Akron); 2, Average of Only Four Years (Preston (Pres-ton at Langdon, Winter and Preston at Dickinson) ; 3, Average of Only Six Years (Preston at Edgnley). suits were obtained partly by the state agricultural experiment stations, partly part-ly by the United States department of agriculture, and partly by the two in co-operation. For each station the chart shows a series of vertical columns, shaded in different ways. The number of columns col-umns in each case shows the number of different groups of wheat grown in those years. Each column stands for the best variety of its group, and the height shows the yield in bushels pei acre, as explained at the side of the I dinvram The erouos are bprd red fti. B ill il in in - VVgLL'UgiLJI.sgS: j winter (white), durum (black), fit ; (light slanting lines), preston (heav slanting lines), and bluestem (dotte ' lilies). , The study of Fig. 1 tells us som things very plainly. Here they are: (1) Where winter wheat (the whit " column) can be grown safely it Is : Il "I ' k I I W. 1 11 ? t i I At $ tt u Hv 'i t' s ' i-o ' .1 I f ,ir - ' i , , " 1 i t ; r , ' r v if Vl S-r- I im -II 'Vs fer It ir - -5 Fig. 2. Heads of Durum and Commor Wheat In Two Positions: On Top Face View of Spikelets; on Bottom Edge View of Spikelets. (1) Ku banka (Durum). (2) Bluestem. (3) Preston. better yielder. and in many parts a much better yielder, than any spring wheat. (2) Durum wheat (the black col umn) has outyielded all other groups of spring wheat at all of the stations named. (3) Fife wheat (light slant-lined column) is the highest yieldi.ig common com-mon wheat In the northern and western west-ern parts of North Dakota it also Is well adapted to eastern North Dakota and South Dakota and to Minnesota. (4) The Preston group (heavy slant lined column), as here shown, con tains three different varieties. Tbe only important one is the Preston. It gives good ;'felds in central and eastern east-ern South Dakota, where it outyields all other groups of common spring wheat id) Dluestera wheat (dotted column) Is hardly equal to flfu except in east rn North Dikota. |