THE ROCKY MOUNTAIN SEED CO. -:- 
Hybrid Field Corn 
Jacques Proven Hybrids 
WISCONSIN AND MINNESOTA GROWN 
Maturities from 80 to 120 days 
Corn Growers should consider seriously the growing of 
Hybrid Corn, as the Hybrids have proven their merits in all 
corn-growing sections, especially where moisture conditions 
are favorable. In some of the corn-growing states 84 per 
cent of all the acreage planted was Hybrid Corn. In select- 
ing the Hybrid for your conditions, be sure to select a 
Hybrid from a reliable source and of the right maturity. 
Wm. Jacques, the pioneer and largest grower of Hybrid 
Corn in the North, advises to plant three different maturities 
of Hybrid Corn and comments as follows: When several 
good hybrids are compared over several seasons, you learn 
a surprising and important fact. The variety that yields the 
most this year may yield the least next year. This year 
may have favored the corn of one maturity as against the 
corn of another maturity. Next year the condition may be 
reversed. There are certain “critical periods” in the growth 
of the corn plant—when the ear buds are set, when the 
plant silks and tassels and pollinates, and when the kernels 
are being filled. The weather at those critical periods may 
have much to do with the size of the crop you get. Don’t 
choose your crop for next year’s planting based on the per- 
formance in one season of any one hybrid. Choose only 
Hybrids that have shown a good average performance over 
several seasons and choose three different maturities of 
these. 
Plant Jacques PROVEN HYBRIDS because— 
(1) Every Jacques Proven Hybrid has proven its superior- 
ity in not just one season, but as an average of at least 
three seasons before it -is offered for sale. 
(2) You can get Jacques Proven Hybrids in dependable 
maturities varying by 5 days, from 80 to 120 days. 
And here’s something else! 
(1) Your Jacques Proven Hybrid Corn shells out more 
corn per bushel of ear corn. It yields even more than the 
wagon box shows. 
_ (2) Your Jacques Proven Hybrid Corn dries out fast, 
goes into the crib with less water in cob and in kernels. 
(3) I£ you plant all late corn you run the risk of a soft 
crop in a short cool season. 
WE HAVE THE FOLLOWING HYBRIDS: 
802— 80 day maturity. 
325— 85 day maturity. 
907— 90 day maturity. 
406— 95 day maturity. 
455—-100 day maturity. 
525— 05 day maturity. 
570—110 day maturity. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 
Jacques Wisconsin No. 645—115 day maturity. 
Jacques Wisconsin No. 676—120 day maturity. 
Jacques Wisconsin No. 1204—-120 day maturity. 
Jacques Wisconsin No. 1208—120 day maturity. 
Minhybrid No. 301—110 day maturity. 
Minhybrid No. 403—110 day maturity. 
Prices of All Certified Corn Hybrids 
Postpaid (1 Ib. 30c) ( Ibs. $1.25) (10 Ibs. $2.00). 
Not Postpaid—Flat Kernel Grade: Bushel (56 Ibs.) 
$7.75). 
Medium Round Kernel Grade: Bu. $6.75. 
The Medium Round Kernel Grade will produce as good 
a crop as the Flat Kernel Grade. All Hybrid Corn is State 
Sealed and Certified in bushel bags and is treated with 
Semesan Jr. ready to plant. One bushel will plant 7 to 8 
acres, 
See inside Back Cover page for more information on 
Hybrid Corn 
DENVER, COLO. 53 

Note uniformity of ears of Hybrid Corn on right against 
ordinary Corn on Jeft. Hybrid Corn will outyield open 
pollinated varieties of the same maturity by 15 to 25%. 
Colorado Grown Hybrids 
We offer two Colorado Hybrids grown under the 
supervision of the Colorado Agricultural College 
from inbreds obtained from the Wisconsin Agricul- 
tural College. 
COLORADO No. 151 (Wis. No. 570)—110 days ma- 
turity. One of the most popular Hybrids, has a 
splendid root and stalk, and makes rather long, 
rugged cylindrical ears and broad kernels. High 
yields of grain and silage. 
COLORADO No. 220 (Wis. No. 696)—120 days ma- 
turity. A wonderful silage corn, of the Yellow 
Dent type, exceptionally deep rooted, strong 
stalked, leafy and vigorous making top yields 
of sound corn of excellent feeding quality. Makes 
a very heavy tonnage of sweet, palatable silage. 
Prices of All Certified Corn Hybrids 
Postpaid (1 Ib. 30e) (5 Ibs. $1.25) (10 Ibs. $2.00). 
Not Postpaid—Flat Kernel Grade: (100 Ibs $12.00). 
Field Corn 
10 pounds will plant an acre. 
The proper selection and care of Seed Corn is more 
important and exacting than the average grower 
realizes, and in appearance corn suitable for seed 
purposes is often deceiving and its seed qualities 
can only be determined by actual tests for germina- 
tion and vitality. Our Seed Corn is strictly Colorado 
grown (except the ensilage and Hybrid varieties), 
is acclimated and will ripen earlier than eastern 
grown seed. 
Open Pollinated Varieties 
COLORADO No. 13—A selection out of Minnesota 
No. 13 by our State Agricultural College, bred for 
earliness and high yielding quality. The most 
widely used yellow dent variety, maturing in 100 
to 110 days. 
MINNESOTA No. 138—Is one of the most, popular 
Yellow Dent Corn for Colorado and the western 
states. It is early maturing, stalks are tail and 
leafy, and is excellent for grain or silage. 
COLORADO YELLOW DENT—This is a variety of 
Yellow Dent Corn developed in Colorado and is 
especially well adapted for planting in the dry- 
land districts and in the north, as it is very 
drought resisting and matures early. Fine for 
grain, fodder or ensilage. 
REID’S YELLOW DENT—A variety largely grown 
in the Arkansas Valley of Colorado and matures 
about 10 days later than Minnesota No. 138. Stalks 
very leafy and fine for ensilage. 
FALCONER—A semi-dent variety, ideal for cold and 
drought resistance. Ears are high enough to be 
easily cut by a corn binder, stalks are leafy, and 
produce a high tonnage of edible feed, ear 12 to 14 
rowed and from 8 to 10 inches long. 
EARLY YELLOW FLINT (Gehu Type)—Flint Corns 
are the earliest varieties, maturing in 80 days 
and are adapted for growing in sections where 
the Dents do not mature. Used mainly where 
early grain is desired or for hogging down as 
the ears are close to the ground. 
Open Pollinated varieties—Postpaid (5 Ibs. $1.06) 
(10 Ibs. $1.50). 
Ask for Special Quantity Prices on Field Seeds and Registered Farm Seeds 
