16 BULLETIN 39, IT. S. DEPARTMENT OF AGRICULTURE. 
(S. Dak. No. 196, C I. No. 3083). Figure 4 shows a number of 
typical heads of bluestem wheat; these are selections from the 
Haynes Bluestem (Minn. No. 51) made at the Highmore substation 
in 1910. The milling qualities of the bluestem wheats are so well 
recognized by the trade that it is taken as the standard by which 
other varieties are rated in milling value. 
Hay nes Bluestem. — The strain of the Havnes Bluestem wheat 
known as Minnesota No. 169 (S. Dak. No. 169, C. I. No. 2874) was 
I * i til * ft If m .? * 
HUH 1 
Till I If 
i'M 
It! f fill pfff fJilfM 
Fig. 4. — Selected heads of the Haynes Bluestem wheat (Minn. No. 51) used in the wheat- 
breeding nursery at Highmore, S. Dak. 
originated by the Minnesota Agricultural Experiment Station. It 
is a selection from the Haynes Bluestem (Minn. Xo. 51) obtained 
from a grower in Manitoba. Because of its uniformity and superior 
quality it is a good example of the possibilities of improving wheat 
by selection. This variety appears to be the best of the bluestem 
wheats, as usually it has slightly exceeded other varieties of this 
group in yield. It can not be distinguished by its appearance from 
other bluestem wheats, but it is very uniform in size and shape of 
grain and in height of plant. 
The Haynes Bluestem should be classed as a late wheat, as it 
requires about 105 days to mature in normal seasons, the time being 
slightly longer in a cool, wet season and shorter in a hot, dry one. 
Owing to its lateness it is seriously affected by rust and midsummer 
drought, though it often escapes early drought for the same reason. 
This fact is important, for many growers have rejected early varie- 
