34 BULLETIN 1287, U. S. DEPARTMENT OF AGRICULTURE 
TABLE 17.—Average agronomic daia recorded on spring-wheat varieties grown on 
fallow and on cornland at the Akron Field Station, 1917-1922, inclusive | 
| 
Dates of— See | Acre yield 
ACL : Cul | ae Se : rust | Bushel 
Class and variety Noe 1 | Height infec- | weight 
Heading’) Maturity) tion | Grain | Straw 
GROWN ON FALLOW 
Durum: Inches | Per cent| Pounds | Bushels | Pounds 
[EVN Ce ek Soe as Se 1584 | June 28 | July 26 31 1— 59.5 UT 1, 851 
ATM AUG KAS a en ee ee | 1493 | June 27 July 24 32 2— 58.3 ese 1, 797 
Belotirkas= =o. =e aesaee P5208) = dae July 25 31 1- 57.9 10. 4 | 1, 817 
Kubankaea=) 2 ae | 1440 | June 28 |___do-_-__- 30 1— 58. 2 9.9 1, 601 
Pentad-(D=5) =e aaa ESS Zoe eed ose | -- ~do..—=— 30 1— 58. 2 10.0 1, 702 
Monad:. = See eos Z0ule=<doses _|- does 29 1— 58.0 9.9. 1, 687 
PATH AU EKA pee eee eae | 4064 | June 27 | July 26 33 2- Stat 9.4. 1, 739 
Hard red spring: 
WonVerse! ta ee oe | 4141 | June 28 | July 22 29 5— 55. 2 11.7 1, 877 
Pioneer... =e eee 4324 | June 26 July 20 30 5- 55. 5 12.2 1, 831 
Prelude... == 4323 | June 19 July 15 28 7— 55. 5 10.8 1, 166 
Marquis. 32 4222--2 222s 27) 3641 | June: 29)) July. 26 28 3— 55.3 10.1 1, 297 
GROWN ON CORNLAND 
Durum: | | 
'Peliss 2 ha ee) ewe | 1584 | June 24 | July 26 26 1- 56. 8 6.9 | 1, 096 
Jali ay A: Samay yale ieee = Sire | 1493 |...do____| July 24 27 2— 58.3 7.0 1, 133 
Belotuskav eS fs 1520 Ee dos 24) July-23 24 2- 57.9 5.6 1, 105 
Kerbanka ieee eee | 1440 | June 25 | July 25 25 1 57.9 6. 6 1, 180 
IRentad. @)=5) sees ieoeo te =- C0. = = 00 ~ ae 25 1— 56. 5 6.6 1, 224 
Mona a2 2 seek Res 3020) a= d0e= = donee 27 1— 58. 0 6.4 1, 298 
iArnautha |e FER SIR Cy | 4064 June 26| July 25 27 | Shs fe 57.81  62| - 1,068 
Hard red spring: | 
GONVEISC: <= 2 see eee ee | 4141 | June 25} July 21 26 5- Geib) 8.3 1, 302 
Pioneersi2_ 3511 teehee | 4324 June 23 | July 19 26 5— 54. 6 | 9.0. 1,313 
Prelude 222s ee | 4323 | June 17 | July 14 25 3- 54. 6 8.6 911 
Marquis’. ss = eae ae | 3641 June 25 | July 25 24 3— 55. 0 | 5.6 1, 032 
1 
u I 
1 Not grown on cornland in 1920. 
Although the best durum varieties have produced yields averaging 
a little better than the best hard red spring wheats, the spread in 
the price between durum and hard red spring wheat usually is suffi- 
cient to warrant recommending the sowing of the hard red spring 
varieties if spring wheat is to be grown. Spring wheat might be 
used as a catch crop to reseed ground on which winter wheat has 
winterkilled or been blown out. 
Of the varieties of durum wheat grown for six years or longer 
Peliss and Arnautka (C. I. No. 1493) have produced the best yields. 
Kubanka (C. I. No. 1440), Beloturka, and Arnautka (C. I. No. 4064) 
are apparently inferior to Peliss and to Arnautka (C. I. No. 1493). 
The rust-resisting strains, Pentad (D-5) and Monad (D-1), have not 
yielded well. Yields of varieties grown three years or longer indicate 
that Akrona (C. I. No. 6881), the early Arnautka selection, is equal if 
not superior to Peliss and Arnautka (C. I. No. 1493), and that Acme 
and Kahla are inferior. However, three years’ data can not be con- 
sidered conclusive. Figure 15 shows heads of Peliss and Arnautka 
durum wheat, which are leading varieties at the Akron Field Station. 
No hard red spring varieties have been grown during the entire 
period from 1908 to 1922, but those grown for long periods have 
produced yields averaging slightly less than the best durum wheats. 
During the 6-year period from 1917 to 1922, inclusive, several hard 
red spring varieties outyielded the durums. Pioneer, Converse 
(Red Russian), and Prelude have been the highest yielding hard 
red spring varieties for this period. As these wheats mature very 
early, they have escaped the effects of drought much better than has 
Marquis. 
