May 17,1924 
Resistance of Oat Varieties to Stem Rust 
707 
Table I .—Result of inoculation of oat varieties with stem rust at Berkeley , Calif., 
in the summer of 1920 , as measured on a scale of 0 to 4, in which 0 represents 
immunity and 4 represents complete susceptibility —Continued 
Host 
Lot No. 
C. I. 
No. 
Greenhouse tests 
Field tests 
First 
Second 
First 
Second 
Avena saliva L .—Continued 
* 
var. Big Four..... 
R 272a 
179 
4 
4 
4- 
4 
Do__ 
R 307a 
1641 
4- 
4 
34- 
4- 
Do______ 
W 1036 
3 
34- 
4 
4— 
var. Black. (Received as Avena ster- 
ilis) .... 
R 295a 
691 
3- 
34- 
3 
4- 
var. Black American.. 
R 185a 
549 
4 
3 
34- 
4— 
var. Black Diamond... 
R 116e 
1878 
3 
3 
34- 
3 
var. Black Mesdag... 
R 117e 
1877 
4- 
4- 
3 
3 
var. brunnea .... 
R8i 
4- 
3+ 
3 
4— 
var. Canadian.._. 
R 119e 
1892 
3+ 
4- 
4 
34- 
Do. (Barley Oat). 
W 1179 
1806 
4— 
34- 
4 
3- 
var. Caucasus...... 
R 279a 
1754 
3+ 
4— 
4 
4- 
var. C. I. 602 (of Etheridge)... 
R 145a 
602 
4- 
3— 
3 
34- 
var. C. I. 603 (of Etheridge). 
R 146a 
603 
4 
3- 
3- 
4 
Var. Culberson. (The three lots differ 
morphologically). 
R 192a 
273 
4 
4— 
4 
3 
Do. 
R 193 
273-V 
4- 
4 
4- 
Do. (Listed as Culberson Winter) 
C 1022 
3+ 
4 
4— 
3— 
var. Danish.... 
C 1032 
3— 
24- 
4 
4- 
var. Danish Island. (Awns vary in 
the 4 lots)_____ 
R 149a 
4 
34- 
4- 
4 
Do. 
R 309a 
1669 
4— 
4 
4 
4- 
Do... 
R 310a 
1666 
4— 
4 
4- 
4— 
Do.... 
R 311a 
1684 
4- 
4 
3 
3 
var. Dryland... 
W 767 
1193 
3— 
3- 
4 
34- 
var. Dun..... 
C 1025 
3- 
4 
4- 
34- 
var. Dwarf Culberson. 
R 196a 
748 
4— 
3 
4- 
3 
var. Early Champion.... 
R 197a 
1623 
4 
4- 
34- 
34- 
var. Early Gothland... 
R 162a 
4 
34" 
34- 
4- 
var. Early Mountain No. 2. (Prob- 
ably Golden Drop).... 
R 273a 
656 
4- 
4- 
34- 
4- 
var. Garton 473. (Received as Gar- 
ton’s Regenerated Yielder).. 
C 1033 
3+ 
24- 
4 
34- 
Do. (Received as Avena sativa 
orientalis )... 
R 297a 
1613 
3+ 
4- 
4- 
3 
var. Golden... 
R 313a 
1750 
34- 
4 
4- 
34- 
var. Golden Beauty. 
R 314a 
1748 
4 
4 
4— 
34- 
var. Golden Fleece. 
R 315a 
1749 
34- 
4 
4 
4- 
var. Golden Rain. (Probably Golden 
Drop)... 
R 275a 
493 
4- 
4- 
34* 
3 
var. Golden Rustproof.... 
R 316a 
1751 
4 
4 
4- 
3 
Do.... 
W 1055 
1929 
34- 
4- 
4 
34- 
var. Gray. (Probably a spreading- 
panicled segregate from Garton 
Gray)_ 
W 663 
4- 
3 
4 
4 
var. Green Russian. .. 
R 121e 
34- 
3 
3 
4 
Do. (Contains a resistant strain). 
R 203a 
1683 
34-&1- 
34-&1- 
3- 
1- <fc 4 
Do. (Contains a resistant strain). 
R 276a 
827 
4 
4- &1 
34- 
1 - & 34- 
Do. 
191-4 
1- 
2— 
var. Guyra. (Received as Gluysa)... 
C 1019 
2034 
4- 
4 
3- 
3 
var. Hatchett. (Received as Black 
Oat). 
R 296a 
838 
3 
34- 
4 
34- 
var. Hay. 
R 317a 
1622 
34- 
4- 
24- 
3 
var. Heavyweight Champion. 
R 318a 
1690 
3 
4 
34- 
4 
var. Highland... 
W 772 
2 
24- 
3 
4- 
var. Joanette. (May be X type of 
infection) ... 
R125e 
1880 
3 <fc 0 
3 <St 1— 
1 to 24- 
1 to 24 - 
var. June. 
R 157a 
1902 
4 
3 
3- 
4 
var. Kherson_ 
C 1021 
34- 
4 
2 
3- 
Do..... 
W 1047 
1198 
34- 
3 
24- 
4— 
Do. (Wisconsin Pedigree No. 156) 
C 1029 
4— 
4- 
4- 
3- 
var. Kherson Selection (of Etheridge). 
R 159a 
1905 
4 
3 
2- 
34- 
var. Krausci . 
R 329a 
1771 
34- 
4 
4 
4- 
var. Lincoln ... _ 
C 1015 
34- 
34- 
4- 
var. Long White..__ 
C 1018 
3- 
4 
4- 
4- 
var. Maine No. 340. 
W 1197 
1935 
34- 
4 
34- 
3 
var. Minnesota No. 26... 
R 278a 
721 
3+ 
■ 4- 
34- 
4 
var. Monarch Selection (of Etheridge). 
(Received as Monarch)... 
R 161a 
1879 
4 
34- 
4 
4— 
var. Montana.... 
R 285a 
1761 
3 
34- 
4- 
4 
var. Mortgage Lifter____ 
W 775 
3 
3 
34- 
34- 
var. mutica. (Awns vary in the dif- 
ferent lots)__ 
R 42k 
4- 
3 
34- 
4 
Do.1... 
R 43c 
34- 
34- 
4- 
4- 
Do. 
R 49e 
3- 
24- 
4- 
4 
Do. 
R 51g 
3 
3 
3- 
34- 
