Plant Western Seed Co's Tru-Krost Hybrid Corn 
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WHY YOU SHOULD PLANT ADAPTED 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 
have 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 vitaljty 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 corn 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 HAVE BEEN IN GENERAL USE IN COLORADO FOR TWO OR MORE YEARS, AND HAVE PROVED THEIR 
VALUE UNDER LOCAL CONDITIONS. 
The grading of the seed has been further improved for more accurate planting. 
Our germination tests are all better than 95 per cent. 
All Tru-Krost Hybrid Seed Corn is treated with Semesan Jr. to provide greater resistance to the common corn diseases and against 
rotting in cold wet ground. 
PLANT ONLY ADAPTED HYBRIDS 
TRU-KROST B17—{90-95 day maturity) 
This all-yellow Hybrid Corn is 5 to 7 days earlier than Standard 
strains of Minnesota 13. It is recommended for the higher alti- 
tudes in northern Colorado and Wyoming and for late planting 
in more favored sections. Very uniform in appearance, stiff stalked 
with deep disease-resistant root system. 
TRU-KROST 170—(100 day maturity) 
This, in our opinion, is the outstanding true 100 day Hybrid on 
the market today. It is adapted to any section where Minnesota 
13, open pollinated corn, has been grown successfully. Out- 
standing inbred lines out of old Minnesota 13 form the major part 
of its makeup. In yield of both grain and fodder it has surpassed 
anything we have tested in its maturity and many of the varieties 
running from 5 to 10 days later. Produces large yellow ears of 
high feeding quality and very leafy, erect, stiff stalks that are 
very resistant to disease and lodging. We particularly recommend 
this strain for most sections of Northern Colorado, including Denver 
areas, and Southern Wyoming. 
TRU-KROST MINHYBRID 301—({105 day maturity) 
This all-yellow Hybrid originally developed by the Minnesota 
Experiment Station was perhaps the first Hybrid to receive general 
acceptance in Northern Colorado. It is still favored by many 
farmers in this section for its ability to yield under adverse condi- 
tions. Recommended for early planting in Denver area, Fort 
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Collins and similar, and late planting in Julesburg, Yuma and 
Wray Districts. 
TRU-KROST MINHYBRID NO. 403—{107 day maturity) 
This Hybrid is another introduction of the Minnesota Experiment 
Station and has shown up well in the Colorado state trials. It has 
proved popular with farmers generally throughout Northern Colo- 
rado because of the high tonnage of fodder it produces together 
with substantial yield of yellow corn of good feeding and market 
quality. Recommended for early to regular planting in Denver 
area, Fort Collins, northern New Mexico and late planting in 
Julesburg, Yuma and Wray Districts. ‘ 
TRU-KROST NO. C53—({107 day maturity) 
This all-yellow Hybrid which represents our plant breeder's 
improvement on old Minhybrid 301 is perhaps two or three days 
later, stiffer stalked and somewhat leafier than 301 and in our 
own trials have shown yield advantages of five bushels or more 
to the acre. Recommended for early to regular planting in Denver 
area and Fort Collins. 
TRU-KROST NO. D56—({107 day maturity) 
This all-yellow Hybrid has done especially well in the West 
for both husking and fodder purposes and in territories where 
corn a few days later than Minnesota 13 can be grown success- 
fully. Produces large rough type yellow ears on stiff disease- 
resistant stalks. Recommended for early to regular planting in 
THE WESTERN SEED COMPANY, DENVER, COLORADO 
