. Bulletin. CEREAL INVESTIGATIONS AT THE NEPHI SUBSTATION. 33 7 to 12 inches apart, according to the plan of each test. In most of the experiments the actual number of seeds planted in each row was known and these were placed at definite distances in the row. Under these conditions many accurate determinations were made and a great number of data of significance in a study of cereal varieties were noted. The nursery experiments comprised three main groups: (1) Varietal tests (fig. 8) including small-gram head rows, increase rows, and minor cereals; (2) tests of the value of different sizes of
. Bulletin. CEREAL INVESTIGATIONS AT THE NEPHI SUBSTATION. 33 7 to 12 inches apart, according to the plan of each test. In most of the experiments the actual number of seeds planted in each row was known and these were placed at definite distances in the row. Under these conditions many accurate determinations were made and a great number of data of significance in a study of cereal varieties were noted. The nursery experiments comprised three main groups: (1) Varietal tests (fig. 8) including small-gram head rows, increase rows, and minor cereals; (2) tests of the value of different sizes of seed; and (3) tests of different seed treatments for smut. The largest of the three groups was that containing the head rows. Of these there were 300 to 600 each year, while there were never more than 100. Fig. 8.—Winter cereal nursery at the Nephi substation in 1912, Looking west; summer fallow in the foreground; increase rows at left; head rows in center marked by white stakes; miscellaneous cereals at right. In the background is the low range separating Juab Valley from Dog Valley. increase or miscellaneous rows. Each of the groups will be reviewed separately, and the data most pertinent at this time will be pre- sented. HEAD ROWS. The head-row tests have been made to furnish pure-line selections of the cereal varieties under test at Nephi. In 1908 plants typical of each variety were selected from the plats of that year. Each plant was noted with respect to its height, number of culms and heads, uniformity of culm length, the average length of heads, average num- ber of kernels to the head, seed-holding power, and the total weight of the grain. At least 2 heads of tills typical plant were selected and used as parent heads in making the subsequent head-row 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 origin
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