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RBLATm RECORPS Of PIONEER HYBRIPS 
Pioneer 
No. 
Years 
Tested 
Yield 
% 307 
Moisture 
% 307 
Ear Height 
% 307 
Root Lodging 
% 307 
Stalks Standing 
% 307 
314 
5 
97 
95 
99 
100 
98 
330 
1 
99 
96 
56 
87 
113 
317 
4 
98 
98 
95 
101 
102 
331 
2 
96 
98 
92 
90 
106 
307 
4 
100 
100 
100 
100 
100 
318-A 
1 
97 
100 
83 
114 
98 
O.P. 
6 
75 
100 
102 
167 
91 
313 
2 
102 
109 
105 
118 
98 
332 
1 
109 
111 
119 
114 
100 
IMPORTANT 
® The figures under "Yield", "Moisture", "Ear Height", "Root 
Lodging", and "Stalks Standing", are given in percentages of 
Pioneer 307. This hybrid is assumed to be 100%. Under "Yield" 
and "Stalks Standing", those hybrids whose percentages are 
higher than 100% have a higher yield record and have more 
standing stalks than Pioneer 307. 
Under "Moisture", those hybrids above 100% are later matur¬ 
ing than Pioneer 307. Under "Ear Height", and "Root Lodging", 
those hybrids below 100% have a lower ear height and less root 
lodging than Pioneer 307. 
DESCRIPTION OF EACH HYBRID 
Pioneer 330 . . . 
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 . . . 
Large eared variety; quick drying, high yielding hybrid; 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 . . . 
General purpose hybrid; very high yielding record; 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 . . . 
Large, heavy eared hybrid; medium low ear height; satisfactory 
yield record; equally suitable for hand and mechanical picking; 
excellent standing ability very sturdy roots and hardy stalks; ex¬ 
cellent smut and drought resistance; good ear dropping resistance; 
medium dented kernels; long husks. 
Pioneer 331 .. . 
Large, moderately rough ears with long husks; low ear height; 
excellent smut and ear dropping resistance; especially strong 
roots and very stiff stalks; good drought resistance. 
Pioneer 318-A . . . 
Large ears with long husks; medium dented kernels; low ear 
height; excellent ear dropping resistance; fairly strong roots and 
stiff stalks; good smut ond drought resistance; excellent for 
silage corn. 
Pioneer 313 . . . 
Dark green, dressy looking hybrid; large, showy ears of very 
good quality corn; medium dented kernels; stiff stalks and fairly 
strong roots; excellent smut, drought, and ear dropping resistance; 
ears slightly high but very uniform; long husks. 
Pioneer 332 . . . 
A high yielding, late maturing com; large ears with long husks; 
medium dented kernels; very stiff stalks and fairly strong roots; 
excellent ear dropping resistance; good resistance against smut, 
and drought; ear height little above average. 
PIONEER 
