48 Sweet Corn Main Uses Days 5 
On 
m™ 
i e Mais Gran Turco Dulce 
HERE SWEET CORN Maiz Dolce 
Zea Mays var. rugosa 
Good hybrid sweet corn seed is the product of a co-ordinated breeding and production 
effort that is almost unbelievably intricate and demanding. It begins with inbreeding 
hybrid or open pollinated lines for many years. Once fixed, these lines must be main- 
tained by careful selection and hand pollination. Two such “inbreds” are crossed in the 
seed production field by planting them in alternate rows, then detasseling the seed parent 
plants. Not only the main tassels, but also sucker tassels must be removed by hand as 
soon as they emerge. The use of the term “hybrid” is now generally and properly con- 
fined to first generation (F;) progeny of a cross. 
Sweet corn seed is tender and easily damaged, so it must be harvested, shelled, and 
cleaned with the utmost care. Keystone sweet corn seed is given this special care and 
treatment, thus assuring satisfactory field performance and a high return to the grower. 
HYBRID 
CARMELCROSS (Yellow) HMC 73 
A well known second early hybrid, developed at the Connecticut Experiment Station. 
Suitable for canning in districts of shorter seasons. 
STALKS —5¥ feet tall, well foliaged, sturdy, occasionally with 2 ears per stalk. 
EARS ——7 to 71% inches long, 12 to 14 rows, medium yellow. Slightly tapered at the 
tip, and well filled. 
KERNEL—Dull yellow, medium broad and deep, good quality. Seed yellow, wrinkled. 
COUNTRY GENTLEMAN HYBRID (White ) HM 85 
A hybrid of Country Gentleman type, suitable for home and market garden. 
STALKS —7 feet tall, vigorous. 1 to 2 ears. 
EARS 7% inches long, slightly tapered at tip, irregular kernel arrangement. 
KERNEL—Typical shoe-peg type, white, very deep, of fine flavor. Seed white and 
wrinkled. 
COUNTRY GENTLEMAN ILLINOIS NO. 13 (White ) MC | 87 
Developed by Professor W. A. Huelsen of the University of Illinois. A true single cross 
hybrid of Country Gentleman type, noted for its holding ability in the field and high 
quality when canned. (Picture on opposite page. ) 
STALKS —7 feet tall, dark green, vigorous, almost suckerless. 
EARS 7% inches long, slightly tapered. Irregular row arrangement. 
KERNEL—Typical shoe-peg type, very deep and narrow. Tender, with sweet, nutty 
flavor. 
FLAGSHIP IMPROVED (Yellow) HM 32 
Very attractive ears, combined with exceptionally high vigor. Resistant to smut and 
bacterial wilt. Tight husks with long tip-cover protect ears well, All America Selections 
Honorable Mention 1949. 
STALKS —7% feet tall, very vigorous and deep rooted. Resists drought and lodging. 
Dark green foliage, few suckers. 
8/4 inches long, 12 to 16 straight, even rows. Almost cylindrical, well filled, 
with heavy dark green husk, and long flags. White interior silk. 
KERNEL— Beautiful golden yellow, medium breadth and depth. Good quality for fresh 
use. Seed yellow and wrinkled. 
EARS 
