38 BULLETIN 33, U. S. DEPARTMENT OF AGRICULTURE. 
winter of 1912-13 at Dickinson, which reduced their yield per acre. 
If later trials show them to be more hardy, they will probably sup- 
plant the ordinary rye, as they are far superior in quality. At pres- 
ent North Dakota No. 959 (C. I. No. 175) winter rye is recommended. 
OTHER CEREALS. 
Varietal tests with flax, proso, and grain sorghum have been con- 
ducted in the nursery. Primost flax (Minn. No. 25; C. I. No. 12) 
and Black Voronezh proso (C. I. No. 27) have also been grown in 
plat tests. A number of varieties of grain sorghums have been 
tested at Dickinson, but in only two years (1909 and 1913) have any 
of the varieties matured seed. In those two years only the early- 
maturing Manchu Brown kaoliang (C. I. No. 261) entirely ripened. 
The forage growth of the kaoliang is about half that of corn. Not 
until earlier varieties than any yet known are produced will this 
grain-sorghum crop be a profitable one for western North Dakota. 
NURSERY EXPERIMENTS. 
The nursery experiments at Dickinson during 1908 to 1913, in- 
clusive, afforded an opportunity for growing a larger number of 
varieties and selections than could be included in the plat experi- 
ments. The nursery tests were confined to short rows. These rows 
were 12 inches apart, the length varying according to the plan of 
each test. In most of the experiments equal weighed quantities of 
seed were sown by hand in each row. In some of the experiments a 
definite number of seeds were sown in each row, placed at definite 
distances in the row. 
The nursery experiments comprise four main groups: (1) Varietal 
tests (fig. 7); (2) pure-line selections, including head rows and in- 
crease rows; (3) crosses; and (4) miscellaneous, including date, 
rate, and depth of planting tests, seed treatment, etc. Table XX 
shows the number of plantings each year in the different lines of 
work. Each of these groups will be discussed separately. 
TABLE XX.—Numober of plantings in the cereal nursery at Dickinson, N. Dak., 
from 1908 to 1913, inclusive. 
Cereal plantings. | 1908 1909 1910 1911 1912 1913 
Spring nursery: 
Warietal tests! G0 et Rod sre ae ee tee bag tg age See gl 211 261 . 387 372 438 481 
‘Pure-line selections 2k oa es! Paes ee one eee 231 264 340 205 414 489 
WTOSSCS Pee oe ee hee doe te en ee i ee ee 3 40 164 287 76 8 
MAISGCTIANCOUS er ee pee eee oe Ree nae naan Gone 65 102 22 180 
Fall nursery: 
Wariletal tests. ee 5.50 oe see or ces coh Se ater ee Oa ra Da | Oe a Cs ones 10 15 
Pure-line selections. 2. =.= She Fe a i os Sse | ee ad pees 100 370 297 335 
TT OSSOS Te Oe ate aa abe ay a en ea ate ata ae ga a | reais ae 226 | 429 116 
Miscellanea usd eek cre eee ea ed eae reed ee ne earn Bel ae kL aN cathe Caer 5 
Total tes ore EE ete eae eee ae iene Dee 314 315 | 1,063 | 1,562] 1,686; 1,629 
