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WHAT IS HYBRID CORN? 
HYBRr 
JACQUES’ PROVEN HYBRID CORN 
The Reasons for Their Phenomenal Increase 
INCREASED YIELD OF 15% to 25%—Experiment sta¬ 
tion tests show actual yield increase of 15% to 25% 
over the best commercial varieties. 
DROUGHT AND WIND RESISTANCE—From % to 
deeper and more vigorous root systems are found in all 
of our HYBRIDS. 
INCREASED STALK STRENGTH—This, combined with 
the deeper root growth, results in a corn which does 
not lodge and will not blow down. 
DISEASE RESISTANCE—Resistance to smut, rust, and 
wilt in our HYBRIDS eliminates weak, diseased stalks 
and diseased, unsound ears. 
GREATER UNIFORMITY—Practical elimination of bar¬ 
ren stalks and nubbins. Uniform maturity. 
We Offer Hybrids Adapted to Every Section 
The term "liybrid” does not refer to a cross of different varieties 
of corn, but to a cross between inbred lines or combinations of such 
lines. These inbred lines tend to perform the same way under like 
conditions, making^ it possible to predict their performance year after 
year. Commercial hybrids are double crosses made up by combining 
lour different inbred strains. 
DEVELOPMENT OF INBRED LINES 
An inbred line is produced by placing the pollen from a plant on 
the silks of the same plant and excluding all other pollen. Self- 
fertilization in corn results in a marked decrease in vigor and pro¬ 
ductivity. After about five years of inbreeding a certain level is 
reached, after which the plants may be expected to be nearly uniform 
in growth and performance. They are "pure" lines, and if they con¬ 
tain desirable characteristics, are crossed with other inbred lines 
for the production of hybrids. These inbred lines are subjected to 
many tests to determine their desirability in hybrid combinations. 
They must carry the necessary qualities to transmit increased yield, 
disease resistance, ear type, etc. 6 to 10 years of inbreeding, selecting 
and testing are required before desirable inbr'ed lines and their 
hybrid combinations are ready for commercial production. 
PRODUCTION OF HYBRIDS 
Production of a double cross hybrid corn is not a simple program of 
multiplication. The four inbred lines must be maintained year after 
year by hand pollination. Each year two of the inbred lines must 
be crossed to form a single cross and the other two crossed in a 
different field. The second year two single crosses are combined 
to form a double cross by planting the paired combinations in iso¬ 
lated fields, one row of the pollen parent to three of the seed parent. 
The plants in the seed rows are detassled before they shed any pollen. 
The ears from the detassled rows furnish the hybrid seed which will 
increase your yield and give you all the other advantages of hybrid 
corn. Because seed saved from a field planted with hybrid corn 
loses its hybrid vigor after the first year, new hybrid seed must be 
obtained each year. 
By Planting Jacques Proven Hybrids You Can— 
Increase yield per acre—or plant an earlier corn without reducing 
yield per acre. This is frequently desirable when dry stalks as well 
as ripe ears are desired, for early shredding. 
Reduce harvest cost. 
Be surer of getting a crop despite adverse conditions. 
Get better quality grain. 
Get better quality ensilage. 
MINHYBRID No. 250 JAPANESE HULLESS 
POP CORN 
Here is the last word in Pop Corn, the latest triumph of the 
Minnesota EIxperiment Station, far surpassing standard Jap 
Hulless in yield and popping expansion. Yields 16 per cent 
more—pops to 29 per cent greater volume than ordinary Pop 
Corn. Quality, flavor and tenderness superb. 
Postpaid: (lb. 35c) (5 lbs. 91>SO)« 
Not Postpaid: (10 ibs. $2.35) (25 ibs. $4JiO) (100 ibs. $17.00). 
Jacqnes’ 115-Oay Hybrid Corn. The 
ears are perfectly ripe» yet the 
stalks and leaves are still green. 
