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CEREAL EXPERIMENTS AT THE WILLISTON SUBSTATION. Ly 
TaBLeE VIII.—Averaye growth data, yields per acre, and weight of grain per bushel for 
nine varieties of wheat at the Williston substation, 1909 to 1914, inclusive. 
ee ued Bn To maturity 
Average date. one ae ea 
Group, Cereal investigations num- | “ Heicht 1e oe ly 
ber, and variety. on | aS } pe 1 
ye . Plant- | Head- Hey Bene: eos 
Headed. Ripe. ing. ing. | 
Durum group: Days. | Days. | Inches. | Bushels. | Pounds. 
1440 Sicubankar we. seen Shs Se July 8] Aug. 3 105 26 39 | 32.8 62.0 
S693 wAmmaltica Nicos) oe MEd Oe et pe douse ae | 105 26 - 39 30.6 61.5 
Fife group: 
SOOT BOW Cle eae aso ee ear aie July 11 | Aug. 4 107 24 35 31.2 60.8 
SOs Redinite se eisaese ene nee BS AOS e ACO UOY see | 106 24 36 | 30.3 58.6 
2873, Glyndon (Minn. No. 163)..) July 13 |...do...-- 107 22 30) 29.2 58. 2 
UGG (Coauthor ees eles tae | July 71} July 30 102 23 35 30.0 60.7 
Preston group: 
3098 MeTestOMe a. arya ae | July 11 | Aug. 2 103 22 35 28.1 60.7 
Bluestem group: 
3083, Dakota (N. Dak. No. 316)-| July 13 | Aug. 6 108 24 37 29.6 57.4 
3021, Haynes (Minn. No. 51)-.---|...do..... =beOlWOs ese 107 24 37 29.0 ov. 1 
Table VIII shows that the date of heading is earler for the durum 
than for the other groups, but they require a longer period from 
heading to maturity and ripen at about the same time. They also 
Fic. 7.—Heads of representative varieties of the four groups of spring wheat grown at the Williston sub- 
station: Durum group—Kubanka (1) and Arnautka (2); preston group—Preston (3); fife group— 
Ghirka (4), Rysting (5), and Marquis (6); bluestem group—Crossbred (7) and Haynes (8). 
grow tallest and have the heaviest bushel weight. The Ghirka and 
the Preston are the earliest maturing varieties. The bluestem varie- 
ties head and ripen later than the varieties of the other groups. 
They also have the lowest bushel weight. 
95887°—Bull. 270—15 
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