DESCRIPTION OF 
LISTED IN ORDER OF MATURITY—EARLIEST FIRST 
Pioneer 357 . . . 
AVAILABLE IN QUANTITY 
Extra early maturing corn; good quality ears that shell out well; 
good feeding corn; leafy plants; adapted for both machine and 
hand picking; seems to do particularly well on rich soil; excellent 
resistance to smut and ear dropping; good drought resistance; fair 
lodging resistance; moderately rough ears with long husks; 
medium ear height; short shanks; tendency to sucker on high 
nitrogen content soil. 
Pioneer 352 . . . 
AVAILABLE ONLY IN LIMITED QUANTITY 
A hybrid which combines outstanding yield and early maturity; 
adapted for both hand and mechanical picking; excellent resistance 
to smut and drought; strong roots and stiff stalks; fair resistance 
to ear dropping; medium dented kernels on average size, wide 
grained ears with long husks; low ear height. 
Pioneer 322 . . . 
AVAILABLE IN QUANTITY 
General purpose hybrid; excellent for both hand and machine 
picking; good feeding com; Banner Trophy winner in 1937; 
adapted for wide range of soils; small cob and deep kernels; 
good yield; exceptionally strong roots and very stiff stalks; ex¬ 
cellent resistance to smut, drought, and ear dropping; medium 
size, moderately rough ears with long husks; low ear height. 
Pioneer 324 . . . 
AVAILABLE ONLY IN LIMITED QUANTITY 
High yielding, unusually good feeding corn; excellent for ma¬ 
chine picker and hand husking; very strong roots and exception¬ 
ally stiff stalks; low ear height; good resistance to smut, drought 
and ear dropping; medium size, moderately rough ears with long 
husks. 
Pioneer 335 . . . 
PRODUCING SMALL QUANTITY OF SEED 
Short stalked, leafy plants and low hanging ears; high yielding, 
fast drying hybrid that shells out well; superior standing ability; 
very strong roots and unusually stiff stalks; medium dented ker¬ 
nels on long ears with husks of medium length; good resistance 
to droughts, and ear dropping; may show a weakness for smut 
in dry years. 
Pioneer 349 . . . 
AVAILABLE ONLY IN LIMITED QUANTITY 
Banner Trophy winner in 1938; leafy plants; excellent ear drop¬ 
ping resistance; fairly strong roots and stiff stalks; good resistance 
against droughts; may smut in dry years; medium size, moderately 
rough, deep kernel ears; ears hang slightly high; short husks; 
susceptible to grain damage in some years. 
Pioneer 315 . . . 
PRODUCING SMALL QUANTITY OF SEED 
High yielding, good hand picking corn; shells out well; seems to 
do particularly well on thin soil; has lowest moisture content and 
ranks second in yield among all commercial hybrids tested in 
last four years in North Central section of Iowa Corn Yield Test; 
smooth, average size ears; medium ear height; husks are medium 
long; fair resistance to root and stalk lodging. 
Pioneer 311-A . . . 
PRODUCING SMALL QUANTITY OF SEED 
Tendency to produce two ears per stalk; dries out rapidly in 
the fall; especially good corn to hand pick; satisfactory yielding 
ability; strong roots and stiff stalks; fair drought resistance; may 
smut in dry years; good resistance against ear dropping; average 
ear height; medium dented kernels on medium size ears; short 
husks and long shanks. 
Pioneer 311 .. . 
PRODUCING SMALL QUANTITY OF SEED 
Quick drying corn; excellent for hand picking; strong roots 
and stiff stalks; good ear dropping resistance; fairly drought re¬ 
sistant; medium dented kernels on average size ears that hang 
waist high; short husks and long shanks; may smut in dry years. 
Pioneer 330 . . . 
AVAILABLE ONLY IN LIMITED QUANTITY 
Extremely uniform, rough eared hybrid; high yielding ability; 
exceptionally strong roots throughout season; and very stiff stalks 
in the fall; may "stalk break" some in mid-season; excellent 
smut resistance; medium size, deep grained, low hanging ears 
with long husks; good drought, and ear dropping resistance; 
especially well adapted for hand and mechanical picking. 
Pioneer 314 .. . 
AVAILABLE IN QUANTITY 
Large eared variety; quick drying, high yielding hybrid; second 
earliest among all commercial hybrids tested for three years in 
South Central section of Iowa Corn Yield Test and ranks third 
in yield in the same group; high shelling percentage; good feeding 
corn; satisfactory for both hand and machine picking; medium 
dented kernels; excellent ear dropping resistance; strong roots 
and stiff stalks; susceptible to leaf smut; resistant to ear smut; 
good drought resistance; medium ear height and medium length 
husks. 
Pioneer 307 . . . 
AVAILABLE IN QUANTITY 
General purpose hybrid; very high yielding record; placed first 
in "General Performance" in Districts 8, 10, and 12 in the 1938 Iowa 
Corn Yield Test; adapted to most soils; good feeding corn; suitable 
for both hand and machine picking; small cobs and deep kernels; 
abundant foliage for silage and fodder; excellent resistance against 
lodging, drought, and ear dropping; good resistance against smut; 
medium dented kernels on ears with medium long husks; medium 
but not very uniform ear height. 
Pioneer 317 . . . 
PRODUCING SMALL QUANTITY OF SEED 
Large, heavy eared hybrid; medium low ear height; satisfactory 
yield record; equally suitable for hand and mechanical picking; 
P I O M E E R 
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