BLOOD TELLS—IN SEEDS AS IN EVERYTHING ELSE 
TSE*m% 
Minnesota No. 13. 
CERTIFIED STRAINS OF 
MINNESOTA NO. 13 
Minnesota No. 13 was developed by the 
Minnesota Experiment Station. The 
original strain was adapted to central 
and southern Minnesota conditions but 
would not produce mature corn in the 
northern part of the state. To meet this 
requirement for earliness and also a de¬ 
mand in the southern section for a larger 
type, two new strains were developed 
known as the Extra Early and Southern 
or Large Type Minnesota No. 13. We 
offer all three strains. 
LARGE TYPE OR SOUTHERN 
STRAIN NO. 13 
This strain is particularly adapted to the 
southern parts of Minnesota, Wisconsin, and 
South Dakota, northern Iowa, Illinois and Ne¬ 
braska. The ears are smooth, deep yellow in 
color, 7 to 9 inches in length, with 14 to 16 
rows of medium deep kernels. Stalks grow 6 
to 7 % feet tall and ears are just the right 
height for husking, being 3 % to 4 feet from the 
ground. It matures in about 90 days and pro¬ 
duces average yields of 75 bushels per acre on 
good corn land. We have the finest of stocks 
and prices are very reasonable this season. Now 
is the time to get started with new seed. 
CENTRAL STRAIN NO. 13 
This was the original strain developed by the 
Experiment Station and is similar to the other 
strains of Minnesota No. 13 except that it is 
about a week earlier, maturing in 80 to 85 days. 
The ears are a trifle smaller but it will yield 
almost as well as the southern strain and is 
pretty sure to produce ripe corn practically 
every year. It is better to have ripe corn every 
year than to have a larger type that will ripen 
only two or three years out of five. This corn 
is grown from seed produced in Meeker County, 
Minnesota, and is adapted to central Minnesota 
and Wisconsin and northern South Dakota. 
EXTRA EARLY STRAIN NO. 13 
(Northern or Haney’s Strain) 
This strain is adapted for northern Minnesota, 
Wisconsin and North Dakota and is the earliest 
yellow dent corn now being grown. It has the 
same general characteristics of the other Minne¬ 
sota No. 13 strains although the ears are neces¬ 
sarily smaller and the stalks grow about 5 to 
6 feet tall. It matures very readily under 
normal conditions, producing as much as 45 to 
50 bushels of ripe corn. 
HYBRID CORN VARIETIES 
The latest corn breeding developments demon¬ 
strate that the heaviest yielding type of corn 
is a cross between two or more pure inbred 
strains. A vigorous sturdy plant, a good, sound 
ear on every stalk, no weak and spindling 
plants, few nubbins *or moldy ears. These are 
some of the outstanding characteristics of 
Hybrid or Crossed Corn. All of these desirable 
features combined, enable this kind of corn to 
outvield the old standard varieties, year after 
year and under all sorts of conditions. 
Hybrid or Crossed Corn will allow you to 
plant fewer acres in line with the Government 
program for reducing the production of corn, 
and still have enough to take care of your needs 
at a much lower cost per acre. These additional 
acres that are taken out of production can al¬ 
ways be well planted to pastures and meadows 
and other recommended crops. 
The Minnesota Experiment Station, among 
others, has been a pioneer in developing hybrid 
varieties of corn, also our own Plant Breeding 
Department has been developing new varieties. 
WHAT IS HYBRID OR CROSSED CORN? 
Hybrid Seed Corn is the result of a cross 
produced by controlled fertilization of two or 
more inbred pure lines. Such hybrid varieties 
have superior plant characteristics, such as 
resistance to lodging, more vigorous growth, 
uniformity of plants, earlier maturity, and most 
important, an increased yield of higher quality 
corn having better feeding value. 
INCREASED YIELDS FROM HYBRIDS 
Hybrid Corn varieties of merit will show in¬ 
creased yields of 10% to 50% or more, and 
those offered at the present time will show an 
average of about 20% over the normal open 
pollinated kinds, adapted to the same locality. 
PLANTING HYBRID CORN PAYS 
The average increase in yield of Hybrid Corn 
over open pollinated varieties is about 12 bush¬ 
els more per acre. When corn is worth 40c per 
bushel, the return per acre would be $4.80 
more than if you grew an ordinary variety. 
When corn is worth 50c per bushel, the average 
increased return would be $6.00 more per acre. 
One bushel of Hybrid Corn will plant about 7 
acres, making a total increased return of about 
$42.00 from one bushel of seed. According to 
our present prices, Hybrid Seed Corn costs less 
than 75c per acre. We cannot supply the large 
demand for this Hybrid Seed so place your 
order early so as not to be disappointed. 
HYBRID CORN PERMITS HEAVIER 
PLANTING 
The normal planting of corn is 3 to 4 ker¬ 
nels per hill. In regions of heavy rainfall. 
Hybrid Seed may be planted 4 to 5 kernels per 
hill. This practice gives even greater yields. 
RESISTANCE TO DROUGHT 
Hybrid Corn is very vigorous in development, 
grows more rapidly and is able to take advan¬ 
tage of soil and weather conditions more readily 
than the open pollinated kinds. This has led 
to the statement that hybrid varieties are more 
drought resistant. 
HYBRID E x BAKER 
(3 Way Cross) 
This is an all yellow corn later than E x I 
and E x K and is very well adapted to southern 
Minnesota and northern Iowa. It ripens about 
the same time as Golden Jewel, Early Murdock 
and Silver King, and has shown as high as 25 
bushels more per acre when grown in compari¬ 
son with local varieties. E x Baker has an 
outstanding record over the past three years or 
more in southern Minnesota and northern Iowa, 
having consistently outyielded local varieties of 
open pollinated corn. It has an unusual ability 
to withstand wind which breaks a good many 
stalks in other kinds of corn. 
HYBRID E x I 
(Double Cross) 
Very similar to E x K Hybrid, having the 
same parentage, Minnesota No. 13 and Rustler 
White Dent, but the plants are slightly smaller. 
It is two or three days earlier than E x K. The 
yield is about the same, having shown 15% to 
20% or more increase over the normal open pol¬ 
linated kinds. This variety is adapted espe¬ 
cially to central Minnesota, Wisconsin and 
South Dakota, and may be grown as far South 
as the Iowa line and as far North as St. Cloud 
and Moorhead under favorable conditions. 
HYBRID E x K 
(Double Cross) 
This hybrid variety was developed by the 
Minnesota Experiment Station from inbred 
lines of Minnesota No. 13 and Rustler White 
Dent. Ex K is medium in height, leafy and 
produces a good-sized ear, mixed yellow and 
white color. The yields of this variety have 
been consistently high, averaging better than 
20% more than local varieties grown in com¬ 
parison. E x K matures 10 to 14 days in ad¬ 
vance of other main crop varieties and is not 
only excellent for early feeding of ripe corn, but 
for hoggingtoff purposes. Plant 3 or 4 kernels 
per hill; under very favorable conditions of 
soil and moisture, 4 to 5 kernels will give even 
better results. For hogging-down purposes 
about 5 kernels per hill will give an excellent 
stand and many ears of high feeding value. 
This variety is recommended for central and 
southern Minnesota. 
HOW HYBRIDS ARE MADE 
Inbred Inbred Inbred Inbrad 
A B C. n 
Th«sa 
We 
>noKc this 
cross 
the 
second 
year. 
13 
two 
CRosst DpL 
WITH i— 
J 
C IS C«oSS£Dr\ 
WITH 
is crossed wit h CXD 
I_I 
You raise corn like this 
dhd qct io to 15 Bu. 
MOP E. pat <ycr<i/ 
NOTE: Hybrid Seed must be made each year. Don’t save your seed. See note at foot of page 11. 
Page 67 
