Plant Western Seed Co s Tru-Krost Hybrid Corn 
CORN 
Typical Display of TRU-KROST HYBRIDS 
The Colorado State College at Fort Collins, Colorado, has tested over a period of years a number of corn hybrids, and has recom¬ 
mended those that are outstanding. Among those especially recommended which are adapted to northeastern Colorado are Min- 
hybrid No. 301, Minhybrid No. 403 and Wisconsin 110-day (Wis. 570 and 606) all of which are high yielding. We ore offering Regis¬ 
tered Seed of these varieties. Northeastern Colorado has an average frost date of September 17th. If you plant only those varieties 
that we list you will be surer of a fully matured crop before frost. While unadapted and unrecommended varieties would mean 
an immature crop or a much lower yield. 
WHY YOU SHOULD PLANT HYBRID SEED CORN! 
WHAT IS HYBRID CORN? 
Hybrid Corn is not just another variety, it is the result of cross¬ 
ing or combining two or more self-fertilized or inbred lines. It 
is not made by merely crossing one variety with another. 
ADVANTAGES OF HYBRID CORN 
Larger Yields of Both Grain and Fodder: 10 to 20 bushels more 
CORN and 50 per cent greater tonnage of ensilage per acre 
hove been obtained. Results are conclusive from proven data 
compiled after years of careful and exhaustive research by vari¬ 
ous State Experiment Stations, and the United States Department 
of Agriculture. 
Uniform growth and maturity of the better HYBRID strains 
are largely responsible for the increase in yields. There are 
practically no nubbins and very few barren plants. Uniformity of 
stalk height combined with evenness of ear ripening, and practi¬ 
cally identical position of ears on the stalks materially lightens 
the husking operation. 
Resistance to Lodging. Hybrids stand up where open-pollinated 
corn would lodge. This persistent, upright growth due to greater 
strength in both root and stalk permits the use of corn pickers 
through late Fall. The partially green fodder can be more readily 
used for feed. 
Resistance to Disease. Hybrids are decidedly more resistant 
to smut and root, stalk and ear-rot diseases than open-pollinated 
varieties. 
Resistance to Drought. The more unfavorable the growing con¬ 
ditions, the more striking is the advantage of hybrids. Under 
these conditions the greater vigor and vitality of hybrids become 
more apparent. 
During extreme heat and drought, the deep and extensive roots 
make hybrids drought resisting. This immense root system pro¬ 
vides a more than adequate anchor during heavy wind storms, 
keeping hybrid corn upright where open-pollinated com would 
be flattened. 
The drought resistance of hybrids, and consequent yields, far 
in excess of open-pollinated varieties was clearly demonstrated 
in the dry season of 1934, 1936 and 1937. 
Better Feeding Value. If adapted strains of the better hybrids 
are grown, the soft corn problem is solved. With the elimination 
of soft corn and subsequent spoilage, the increased value of 
Hybrid strains from a feeding standpoint becomes apparent. 
TRU-KROST HYBRIDS ARE REGISTERED BLUE TAG—STATE SEALED—WITH CERTIFIED GERMINATION AND GRADING 
TRU-KROST HYBRIDS are TREATED with SEMESAN JR. to provide greater resistance to root-stalk and ear-rot diseoses ond hasten 
germination in unfavorable cold, wet weather. 
PLANT ONLY REGISTERED HYBRIDS 
MINHYBBID NO. 301—(110 days) 
This all-yellow hybrid, developed by the Minnesota Experiment 
Station is the result of a cross with Minnesota No, 13 and Iowa 
inbreds. It matures about the same as Colorado 13, Minnesota 13 
and Wisconsin 110 day hybrids. It is adapted to all of north¬ 
eastern Colorado and nearby territories. 
It has unusual ability to withstand windstorms as it has a very 
stiff stalk with a strong root system. It grows medium tall, pro¬ 
ducing large, well-filled ears. After the corn has ripened, the 
fodder remains green, which gives it a higher feeding value. 
Minhybrid No. 301 has averaged over 15 bushels more per 
acre than the open-pollinated kinds, in tests covering a period of 
years. Under Colorado growing conditions yields of 125 bushels 
per acre are not uncommon. 
MINHYBRID NO. 403—(110 days) 
A yellow hybrid made by crossing a late single cross (Reid) 
Yellow Dent Inbreds) with an early single cross (Minnesota No. 
13 inbreds). This double cross hybrid matures at about the same 
time as Colorado No. 13 and Minnesota No. 13. Compared with 
these standard varieties, it is much higher in yield, has greater 
standing ability, and is more smut resistant. It is about as tall 
as the common varieties, has a long smooth dent, 16 to 18-rowed 
ear, and a well developed root system. The plants stay green 
longer than standard varieties, even after the ear is well 
developed. 
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THE WESTERN SEED COMPANY, DENVER. COLORADO 
