34 
BULLETIN 1498, U. S. DEPARTMENT OF AGRICULTURE 
in the same section. Red Bobs and to a less extent Kitchener have been 
found to be well adapted to Montana, where rust injury usually does 
not occur. Prelude and Progress increased in Minnesota and Wisconsin 
because of their earliness. Progress also is resistant to stem rust and 
was distributed previous to the other new improved wheats listed. With 
the exception of the increase in Sea Island, a variety which is not well 
known or recommended, the increases and decreases in the varieties 
grown are in line with recommendations for standardization of the 
hard red spring wheats made by Federal and State workers. 
DURUM WHEAT 
The durum wheats (class 2) are grown principally in the northern 
section of the Great Plains area and occupy a part of the same territory 
where the hard red spring wheats are grown. In this area, varieties of 
durum wheat usually outyield the hard red spring varieties because of 
the greater resistance of the durum varieties to stem rust and drought. 
Fig. 15.— Distribution of durum wheat in 1919. Each dot represents 2.0C0 acres. 
area, 4,665,650 acres 
Estimated 
The distribution of durum wheat in the United States in 1919 is shown 
in Figure 15. The distribution in 1924, which is shown in Figure 16, is 
somewhat different from that of 1919. It will be noted that during 
the 5-year period the durum acreage moved northward. 
Table 5. — Estimated acreage and -percentage of the total durum area occupied by 
each variety of durum wheat in 1924 
[The asterisk in parentheses (*) indicates a variety reported as grown but for which an estimate of acreage 
either was not given or if given was less than 0.1 per cent of the total wheat acreage of the State] 
Variety 
Acreage 
Per 
cent 
Variety 
Acreage 
Per 
cent 
Durum (varieties not reported) 
3, 081, 578 
479, 046 
341, 147 
84, 203 
65, 457 
45, 579 
23,075 
11,953 
5,055 
74.4 
11.6 
8.2 
2.0 
1.6 
1.1 
.6 
.3 
.1 
4,691 
(*) 
0.1 
Total of varieties re- 
ported 4, 141, 784 
Varieties not reported 53. 920 
100 
Kahla.. 
' 
Total durum 
4, 195, 704 
Peliss 
