|
2000
HOLDEN HYBRIDS
STRIP TRIALS
MIR-treated
and control crops were planted in seven states:
Ohio, Illinois, Indiana, Michigan, Wisconsin, Nebraska and
Minnesota during the 2000 planting season.
The crops were routinely inspected during
the summer. The following are observations that were recorded
at various locations. A Stand Count
chart is provided at the end of the observation section.
LOCATION:
Langdon Bros. Seed, Hartford City, IN
HYBRID: 244x184 & 33x283
2500 ft. strips of 6 rows
Observation: MIR rows tasseled 2-3 days earlier than
check rows. In 33x283, MIR rows had slightly better stand. In
244x185 MIR leaves showed better turgor, with more vertical
leaves than check (as shown in photo below). MIR sweet corn
tasseled 2-3 days earlier and ears were ready for harvest 2-3
days earlier. MIR sweet corn ears were also of significantly
better quality with substantial yield gains.
LOCATION: Becks' Hybrids, Atlanta IN
HYBRID: 200x185 & 33x283
Observation: According to Dr. Kevin Cavanaugh, Director
of Research, there was more uniformity in the 200x185 MIR plot
and better turgor in the leaves. In the 33x283 plot, the
leaves stood straighter and more vertical.
LOCATION: Cornbelt Hybrid,
Greenville, OH
HYBRID: 33x283
Observation:The MIR plants showed 12+ inches of extra
height over the waist-high control plants. The grower
indicated that both plots were stressed by excess rain and
would generally be taller, indicating improved stress
tolerance by the MIR plants.
LOCATION: Steyer's, Blissfield, MI
HYBRID: 197x185, 33x283, 200x185, 284x185
Observation: MIR stand counts were higher in strips of
all four hybrids.
197x85 MIR had +2.9% better
stand (95% statistical sig.)
33x285 MIR had +4.3% better stand (90% statistical
sig.)
200x185 MIR had +6.2% better stand (not significant)
244x185 MIR had +8.4% better stand (95% statistical sig.)
LOCATION: Dahlco Seed, Cokato, MN
HYBRID: 198x172
Observation: In general, there was no significant stand
difference, but the MIR plants were greener with a +11%
increase in ear length (95% statistical significance). The
angle of the sun to the camera was the same in both photos.
Stand
Count from Early August Observations
|
HYBRID
|
STAND
|
s.d.
|
REPS
|
DIFF.
|
Stat.
Sig?
|
|
Steyer
Seed, Marion, OH
|
|
|
|
|
|
|
33x283
Control
|
93
|
3.39
|
4
|
|
|
|
33x283
MIR
|
100
|
2.74
|
4
|
+7.5%
|
95%
|
|
|
|
|
|
|
|
|
244x185
Control
|
95.4
|
1.96
|
5
|
|
|
|
244x185
MIR
|
99.5
|
4.33
|
5
|
+4.3%
|
Not sig.
|
|
|
|
|
|
|
|
|
197x185
Control
|
93.13
|
2.47
|
8
|
|
|
|
197x185
MIR
|
95.88
|
2.03
|
8
|
+3.0%
|
95%
|
|
|
|
|
|
|
|
|
200x185
Control
|
93.75
|
2.59
|
8
|
|
|
|
200x185
MIR
|
96.13
|
2.15
|
8
|
+2.5
|
90%
|
|
|
|
|
|
|
|
| Steyer
Seed, Tiffin OH
|
|
|
|
|
|
|
33x283
Control
|
92.25
|
1.48
|
4
|
|
|
|
33x283
MIR
|
94.75
|
5.63
|
8
|
+2.7%
|
Not sig.
|
|
|
|
|
|
|
|
|
244x185
Control
|
94.67
|
1.25
|
3
|
|
|
|
244x185
MIR
|
99.75
|
1.79
|
4
|
+5.4%
|
99%
|
|
|
|
|
|
|
|
|
197x185
Control
|
95.4
|
3.44
|
4
|
|
|
|
197x185
MIR
|
99.0
|
1.0
|
2
|
+3.8%
|
Not sig.
|
|
|
|
|
|
|
|
|
200x185
Control
|
90.13
|
5.18
|
8
|
|
|
|
200x185
MIR
|
92.38
|
5.0
|
8
|
+1.2%
|
Not sig.
|
|
|
|
|
|
|
|
|
Prairie
Hybrid Seeds,
Deer Grove, IL
|
|
|
|
|
|
|
33x283
Control
|
95.9
|
3.38
|
10
|
|
|
|
33x283
MIR
|
104.0
|
2.54
|
10
|
+8.4%
|
99%
|
|
|
|
|
|
|
|
|
244x185
Control
|
95.4
|
2.35
|
9
|
|
|
|
244x185
MIR
|
98.7
|
1.58
|
10
|
+3.5%
|
99%
|
|
|
|
|
|
|
|
|
Georges
Hybrids,
Prescott, WI
|
|
|
|
|
|
|
198x172
Control
|
97.25
|
3.42.8
|
|
|
|
|
198x172
MIR
|
99.13
|
5.35
|
8
|
+1.9%
|
Not sig.
|
|
|
|
|
|
|
|
|
Hoegemeyer
Hybrids,
Hooper, NE
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hoeg.
Hybrid #1 Control
|
97.5
|
4.54
|
6
|
|
|
|
Hoeg.
Hybrid #1 MIR
|
102.25
|
2.19
|
6
|
+4.9%
|
Not sig.
|
|
|
|
|
|
|
|
|
Hoeg.
Hybrid #2 Control
|
91.35
|
4.01
|
10
|
|
|
|
Hoeg.
Hybrid #2 MIR
|
97.8
|
3.3
|
16
|
+7.1%
|
99%
|
|
|
|
|
|
|
|
|
Hoeg.
Hybrid #3 Control
|
97.13
|
3.23
|
8
|
|
|
|
Hoeg.
Hybrid #3 MIR
|
101.0
|
2.01
|
10
|
+3.9%
|
95%
|
|
|
|
|
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