. Bulletin. CEREAL EXPERIMENTS AT DICKINSON, N. DAK. 39 VARIETAL TESTS. A much larger number of varieties is tested each year in the nursery than in the field plats. The new varieties which are con- tinually being introduced and originated are here given their first trial. The land used is alternately cropped and fallowed. The seed is sown by hand in a furrow about 3 inches in depth, which has been opened with a wheel hoe. It is then covered by a special at- tachment upon the same tool. The rows are 17 feet long and 12 inches apart. Every third row is planted to the same variety, as a check. C
. Bulletin. CEREAL EXPERIMENTS AT DICKINSON, N. DAK. 39 VARIETAL TESTS. A much larger number of varieties is tested each year in the nursery than in the field plats. The new varieties which are con- tinually being introduced and originated are here given their first trial. The land used is alternately cropped and fallowed. The seed is sown by hand in a furrow about 3 inches in depth, which has been opened with a wheel hoe. It is then covered by a special at- tachment upon the same tool. The rows are 17 feet long and 12 inches apart. Every third row is planted to the same variety, as a check. Careful notes are taken throughout the season on the com- parative behavior of the different varieties. At harvest time each row is cut (a part of the row is pulled) separately, labeled, and the. Pig. 7.—General view of the cereal nursery at the Dickinson substation in 3913. heads covered with paper sacks to prevent mixture or damage by birds. The total weight of each row and the total weight of grain per row are obtained at thrashing time. In addition, the following notes are taken on 25 plants from each lot: Height of plant, length of head, number of culms per plant, number of heads per plant, total weight of plants, and weight of grain. These notes for a series of years give a rather accurate analysis of each variety. The correla- tion of the different characters, with yield, is the primary object of this analysis. The weight of grain per row gives the relative yielding power of the different varieties. Computed yields are determined from the use of the check rows. New and untried varieties in this way are compared with standard and better known varieties. Any variety producing a relatively high yield for several years is increased and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Offic
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