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PRODUCTION OF HYBRIDS 
Production of a double cross hybrid corn is not a simple program of multi¬ 
plication. 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 isolated 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. 
HYBR 
Jacques’ Proven Hybrids 
Jacques’ Proven Hybrids for Every Locality 
All of our Hybrids are yellow dents, all noted for sturdy, 
stiff stalk. Proven to be superior in every way by actual 
test. We have several strains varying in maturity from 
85 to 120 days. 
WHAT IS HYBRID CORN? 
The term “hybrid” 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 per¬ 
form the same way under like conditions, making it pos¬ 
sible to predict their performance year after year. Com¬ 
mercial hybrids are double crosses made up by combining 
four 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 de¬ 
crease in vigor and productivity. 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 in- 
bred lines for the produc/tion of hybrids. These inbred 
lines are subjected to many tests to determine their de¬ 
sirability in hybrid combinations. They must carry the 
necessary qualities to transmit increased yield, disease 
resistance, ear type, etc. 5 to 10 years of inbreeding, 
selecting and testing are required before desirable inbred 
lines and their hybrid combinations 
are ready for commercial produc¬ 
tion. 
JACQUES’ PROVEN HYBRIDS 
WISCONSIN AND MINNESOTA GROWN 
Matures from 85 to 120 Days 
Select a Hybrid that will mature at about the same time as the 
open polinated Corn that you have been planting. Hybrids will 
mature slightly earlier and will yield more. If Hybrids are wanted 
for ensilage, select a Hybrid five to ten days later maturing than 
if wanted for grain. 
Better Than 100 Bushels Per Acre Yield Made With 
Hybrid Com 
Don McMillen, county farm agent, announced two Larimer County 
farmers, J. G. McCormick, Fort Collins, and Roy Welty, Berthoud 
grew Hybrid corn that yielded more than 100 bushels grain to the 
acre on irrigated land this fall. 
On the Welty farm, Minhybrid 301 averaged 115.9 bushels to the 
acre, and on the McCormick farm the same corn averaged 104 bushels, 
or 27 bushels more than Colorado 13 corn. 
Edgewater Branch, Denver, Colo. 
Gentlemen:—I planted 90 day Hybrid Corn on June 10th and the Corn was 
dented by August 27th. I would say the yield was one-third better than the 
open polinated Corn. The strong root system did not let the corn fall In the 
wind and rain. I consider the foliage from the Hybrid Corn much better 
and I shall plant all Hybrid Corn next year. Edward Furter. 
Arvada, Colo, 
Gentlemen:—I planted one-half acre of 90 day Hybrid Corn In the middle 
of a field of Minn. 13. The Minn. 13 gave a yield of 50 bu. to an acre and 
the Hybrid had 30 hu. on the half acre. The Minn. 13 had large and small 
ears and the Hybrid were all uniform We had a dashing rain and wind the 
first of September and the Minn. 13 fell down considerably, but the Hybrid 
stood up almost 100 per cent Irwin Miller. 
Castle Rock, Colo. 
Gentlemen:—The Remington Ranch has an altitude of 6,800 feet. I used 
85 day Hybrid Corn. Hybrid produced much more foliage; more firm, full, 
matured ears. I hope Hybrid Seed is cheaper next year so I can plant it 
exclusively. I. B. Remington, 
Prices of All Certified Corn Hybrids 
TreatPil WPh Seniesan Jr.—Hiind-Tipped and Butted 
By mail, poMtpuid: (2 lbs. 45c) (5 lbs. $1.00) (10 lbs. $1.75) (25 lbs. 
$4.DD>, 
Not PoNtpaid: (Bu. $7.00) (5 bn. lots $0.85). Limited quantity Medium 
Bound Kernel Grade $1.00 per bushel less (sold only in lots of 
<ine Im-sliel or more). 
ALL li'\ ilBIO .^KEU that we offer is state certified and sealed and 
can be depended upon to si\e very fine results. 
Jacques* 115 Day Hybrid Corn. The 
ears are perfectly ripe, yet the 
stalka and leaves are still gpreen. 
