
ONE-THIRD OF ALL FIRST PLACES 
GO TO PIONEER HYBRIDS 
Pioneer hybrids won one-third of all first place positions in the 
official 1940 Minnesota Corn Yield trials. In all fields scattered 
throughout Minnesota, there was a total of 39 groupings in which 
corns were rated. Pioneer placed first in 13 of these groups... 
more than twice as many first place rankings as any other producer 
received. All test fields were planted, checked, and determined 
for yield by the University of Minnesota. 
PIONEER 353 Makes HIGHEST YIELD in Test! 
Pioneer 353 produced the highest average yield per acre in any 
one test field among all varieties entered in the 1940 Minnesota 
Corn Yield Trials. It yielded an average of 91.1 bushels per acre 
in the Winona county test field located on the Frank Mueller farm, 
near St. Charles, Minnesota. 
1940 MINNESOTA CORN YIELD TRIALS 
Conducted by University of Minnesota 

Analysis of Records 
Made by Pioneer tlybrids 
In 1940 Minnesota Corn Yield Trials 
Days-to-Maturity 
Zone County 
110-116 Winona 
110-116 Mower 
110-116 Martin 
110-116 Nobles 
110-116 Nicollet 
103-109 Lincoln 
103-109 McLeod 
103-109 Chippewa 
96-102 Pope 
RATING OF MATURITY GROUPS 
I Medium Early 
II Adapted 
Maturity 
Group 
I 
II 
III 
Il 
III 
II 
I 
II 
Ill 
I 
II 
IV 
IV 
Pioneer Hybrids 
Ranking Ist in Yield 
370 
353 
322 
353 
322 
353 
370 
370 
373 
355 
322 
373 
373 
III Medium Late 
IV to VII Late 

PIONEER 355 Has Highest “Four-year” Average Yield 
i 1938 and 1939, and 
4eties Grown in Fillmore County 1937, Houston County 
Table 11. Varieties Gr aoe a 



Yield, Bushels Per Cent Moisture 
: poem ence! estar 
, ee eee 
ae 1937. 1938 1939 41940 Av 1937. 1938 1939 1940 Av. 
SROuPH * san 229 ony 
Pioneer Hybri TSS 79.2 51.0 0d. C ir) 9.0m 2S- Cima 2 7-1 
renee re cs =e ne go oF GOO MNET 7. mn ZO4 Oa 19.0 26.0 27.8 
Manbyb a aoc Saeco e750 7 4 9 DOA Acs 34.6 : i a) 
sai vid ee Ce A TE 29.2 99.1 19.6 24.4 26.6 
Minbybrig OOF aan aa 6810) G4 75-7) 26-8 te? 315 i i : 
Me ee as, SST 693.1 «0338 «2056.0 28.8 
Murdock ernenatnnsntaieseinnie 59.4 55.1 62.8 59.0 
ieti i d County 1938, 
Table 10. Varieties Grown in Brown County 1937, Cottonwoo 
- Watonwan County 1939, and Martin County 1940 



Yield, Bushels Per Cent Moisture 
; Teac al 
| 
veer 1937 1938 1939 1940 Av 1937 1938 1939 1940 Av. 
/ 7 
Giger ‘aed os_— go 8 8 2) SBS ERE BS 
inhybrid Paseo eer seers = A A / A ~ Z 
ees AOS enrereterscimmnonnos 70.0 $4.9 87.4 52.2 66.1 26.7 28.4 16.4 22.9 23.6 
9.8 22.7 
: 227 «8635.9 27.70 26.6 1G-S I 
ae a3 B26 81.2 937.0 54.7 294 285 os 7 
939 and 19 
1937 and 1938 and Nobles County ! 
Master Hybrid No. 
Murdock 













fable 3. Varieties Grown in Rock — : Per Cent Moisture 
Yield, Bushels = yos8-1939-««1940 AY 
Variety = ae = 17.2 27.3 24.8 
Sh, 762° Se 302 16.7 26.4 23-6 
GROUP I Eo 105 6a? eo mae 223 «18.7 «30-4 
: ; A A " 28.5 
Pion a0) 75.1 108-1 859 ie eee cE IE) 
Turner EA ~ Soa 87 98 Ta ere, 2 

Pioneer 355, “Old Reliable” 
of the Northern Corn Beli, is the 
highest yielding corn tested for 
four years (1937 to 1940) in all 
three locations in the southern 
zone of the Minnesota Corn 
Yield Trials . .. proof of its 
consistent high yielding ability, 
and profit making performance. 
PIONEER HI-BRED CORN COMPANY 
114 11TH STREET—DES MOINES, IOWA 
FOR FURTHER INFORMATION, SEE YOUR LOCAL PIONEER REPRESENTATIVE 

