24 BULLETIN 1287, U. S. DEPARTMENT OF AGRICULTURE 
Most of the varieties grown belong to the Crimean group of hard 
red winter wheats. The exceptions are Alton (Ghirka Winter), an 
awnless hard red winter variety; Buffum No. 17, an awnless soft red 
winter wheat; and Nebraska No. 28, an awned soft red winter variety. 
Some differences in yields have been obtained from the several lots 
ACKE YIELD /N BUSHELS 
Oo oF 70 eed. 20 
TURAEF 
CLNQ1/57/ 
KHHABHOF ® 
CLNQ/583 
CAV/IEAN 
C.L.NO/436 © 
Fic. 12.—Average acre yields of four varieties 
of hard red winter wheat grown at the Akron 
Field Station during the 15-year period, 
1908-1922, inclusive, except 1919 
of Crimean wheats grown in all 
years, but these differences are of 
doubtful significance. The average 
yields of the four strains grown each 
year, Crimean (C. I. No. 1486), 
Kharkof (C. I. Nos. 1442 and 1583), 
and Turkey (C. I. No. 1571), show 
an extreme variation of only 1.4 
bushels, which is within the limits 
of the probable error. These data 
are shown graphically in Figure 12. 
Annual and average yields of the 
leading varieties grown on fallow 
and on cornland from 1917 to 1922, 
inclusive, are shown in Table 6. 
Table 7 shows the average dates 
of heading and maturity, weight 
per bushel, yield of grain and straw, and percentages of stem-rust 
infection recorded on the two strains of Kharkof and one each of 
Turkey and Crimean wheat from 1908 to 1922, inclusive. In Table 
8 similar data are presented on the varieties grown on fallow and on 
cornland from 1917 to 1922, inclusive. 
TABLE 6.—Yields of the leading varieties of winter wheat grown on fallow and on 
cornland at the Akron Field Station, 1917-1922, inclusive 
Acre yield (bushels) ! 
Fallow Cornland 
Group and variety | or | | 
[teas | | Average | Average 
1917,1918)1920)1921|1922) 1917/1918) 1920 |1921)1922 | 
| 1917 to} 1920 to (1917 to) 1920 to 
| 19221 | 1922 19221!) 1922 
Crimean: | | | 
Keanred 22-6 5146) 14. 8 22. 6/27. 9/18. 6/19. 5 20.7) 22. 0)20. 4)17. 5|232. 3) 9.9) 9. 6) aby GAS} ea Ly AS 
hunrkeyzo eee 1571) 7. 7|20. 1/24. 5|23. 9/17. 2 18.7} 21.9) 9. 4/16. 8} 18.9) 6.6) 8.3 12-0) ies 
Ha KO faa eae a | 1583}15. 6/12. 8/19. 1/20. 8/200} 17.7| 20. 0/18. 1/11.8} 13.2] 5.2) 8.5 11. 4) 9.0 
i) Qe ee Sek 1442/12, 9/12. 7/18. 8/24. 6|18.7) 17.5) 20. 7/12. 9)13.0; 12. 5} 5. 4/11. 8) BEA 9.9 
Crimeanse. to Seri 1436) 7. 0)18. 0/19. 6|26. 2/14. 1 17.0 20. 0} 7. 0)14. 8) 18.8] 7.1) 7.2 11.0 11.0 
Kenarkoise = ae | 4207/13. 8|13. 2/23. 1/16. 0/18. 3 16.9} 19.1113. 3)12. 5) 12. 7) 4.0) 7.9 10. 1) 8.2 
Dore Say §549)- 22S 23241673) 1690|Sae eee | LO 2iee=4|2484 14. 0) 3. 6) 11. pooper te 9.6 
Blackhuli as 6251225 aaee D194 TQ 7 Gan 2 aaa saeel5 ac | een | e 11. 5/11. 9} Sik] See Cee 10.5 
Ma Ghaynbidtay ee Gloon eae 20. 4/10. HOS | See | 1338|5S32|22 1528} 325] Waa) ee ee 9.1 
Miscellaneous: | | 
Alton (Ghirka Win- | ees Meal | 
bel) 2 eee 1438) 6. 5/15. 2|i?. ee cian We ape AES avd iisiesy) br L help ale 9.3 8.8 
| 
1 No varietal plats of winter wheat were grown at Akron in 1919. 
2 Plats located in favorable position to receive run-off. 
