Group Title: Quincy NFREC research report - University of Florida North Florida Research and Education Center ; NF-96-2
Title: Corn performance trials for 1995
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Permanent Link: http://ufdc.ufl.edu/UF00074361/00001
 Material Information
Title: Corn performance trials for 1995
Series Title: Quincy NFREC research report
Physical Description: 3 leaves : ; 28 cm.
Language: English
Creator: Stanley, Robert L ( Robert Lee ), 1940-
North Florida Research and Education Center (Quincy, Fla.)
Publisher: North Florida Research and Education Center
Place of Publication: Quincy Fla
Publication Date: 1996
 Subjects
Subject: Corn -- Yields -- Florida   ( lcsh )
Corn -- Varieties -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: R.L. Stanley.
General Note: Caption title.
Funding: Research report (North Florida Research and Education Center (Quincy, Fla.)) ;
 Record Information
Bibliographic ID: UF00074361
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 84848362

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/o1.




Quincy NFREC Research Report NF-96-2


CORN PERFORMANCE TRIALS FOR 1995

arston Sc enr R. L. Stanley, Jr.
L bri aJ North Florida Research and Education Center

FEB 0 2 199 Quincy, FL

Univer moi t of Floida
ni* rn Is an important agronomic crop in Florida, being produced for use as grain and silage
in livestock rations. Commercial corn hybrids are evaluated at various locations in the state to aid
producers in selecting varieties to plant. This report contains results of the 1995 performance trial
conducted at NFREC, Quincy, FL.

The test site was turned with a moldboard plow in late February. Immediately prior to
planting 1000 lb/A of 5-10-15 (N-P205-K20)and Sutan-Aatrex at 3-1 (lb/A a.i.) were incorporated.
Following planting Counter 15G was banded over the row at 15 Ib/A a.i. Additional nutrients were
applied in 2 applications to give a total of 300-200-300 lb/A N-P20s-K20 Plots were machine
planted at about 1.5X the desired population on 3-29-95 and hand thinned after emergence to a final
population of30,000/A. Soil type was Norfolk loamy fine sand. Overhead sprinklers were used as
needed to maintain optimum soil moisture conditions for corn production. Corn was harvested on
8-8-95 with grain yields reported at 15.5% moisture and silage as 65% moisture.

Tropical hybrids were planted on 5-31-95 with the same herbicide and insecticide practices.
Total nutrients applied were 150-75-150 lb/AN-P20,-K20 applied halfpreplant and half when about
knee high. Corn was harvested on 9-21-95 and reported the same as for the temperate corn.

Table 1 shows both grain and silage yields for temperate hybrids at Quincy. Average
production for 2 years is included for those that were tested both years. For one hybrid to be
considered better than another in grain production, it must exceed the other by 29.2 bu/A (LSD @
10% level = 29.2). To be better in silage production it must exceed the other by 3.8 T/A (LSD @
10% level = 3.8). For example, the top 3 hybrids in grain production in 1995 are not different from
each other since the difference is less than 29.2 bu/A. Highest grain producers are not always the
highest in silage production and this may need to be considered in selecting silage varieties. Whether
selecting for grain or silage production, performance for more than 1 year should be considered. It
is also a good practice to consider information from similar locations, whether in-state or from
neighboring states. Information for South Georgia locations may be helpful for much of north Florida.

Performance of tropical hybrids is shown in Table 2. These can be planted later than the usual
"temperate" varieties and may fit in some cropping situations. As shown in Table 2, some tropical
hybrids have yield potential of 100 bu/A grain with less input (lower fertilizer rates and no irrigation).









Table 1. Performance of temperate corn hybrids at NFREC Quincy, Florida.

Grain Yield1 Silage Yield2


Company
Pioneer
Northrup King
DeKalb
HyPerformer
Pioneer
Pioneer
Northrup King
HyPerformer
Pioneer
Pioneer
AgraTech
HyPerformer
Pioneer
Pioneer
Pioneer
Pioneer
Pioneer
HyPerformer
Pioneer
Deltapine
DeKalb
DeKalb
HyPerformer
Pioneer
Pioneer
AgraTech
Pioneer
Northrup King
Pioneer
Northrup King
Deltapine
LSD at 10% level


Hybrid
X1234F
N8811
DK683
HS9977
3245
3223
N8727
HS9822
X1184M
3156
888
HS9843
X1194F
3394
3154
3146
3085
HS9944
X1134N
G4666
DK714
DK706
HY9899V
X1134T
3140
1177
3167
C77B
3163
508
G4868


1995 2-Yr. Avg. 1995 2-Yr. Avg.


208.8
191.4
189.9
179.0
178.9
177.2
176.8
176.1
174.6
173.8
167.5
167.2
167.1
166.4
166.1
166.0
165.4
162.1
161.7
159.0
156.8
154.0
153.9
150.9
150.6
150.2
144.7
135.7
135.4
125.4
107.6
29.2


146.0
169.3

141.1

142.5


138.0



142.3
134.4
138.6
136.5


136.2
156.8



132.2
128.1
130.4
112.6
133.5
116.4
101.2


24.46
23.18
21.90
24.46
20.69
20.31
25.28
19.55
20.93
21.64
23.12
20.45
20.67
20.44
22.23
22.06
21.06
19.83
23.12
22.21
21.12
20.20
22.35
17.19
20.26
25.55
19.31
21.40
19.30
18.24
19.56
3.80


22.44
21.90

19.59

24.14


21.22
21.46


19.47
21.46
20.93
20.48


21.65
21.91




22.47
19.70
21.30
19.00
19.92
19.88


'Bu/A @ 15.5% moisture
2T/A @ 65% moisture

Planted: 3-28-95
Population: 30,000 plants/A in 30" rows
Soil Type: Norfolk loamy fine sand
Fertilization: 300-200-300 Ib/A N-P20,-K20
Irrigation: Yes









Table 2. Performance of Tropical Corn Hybrids at NFREC Quincy, Florida.


Company Hybrid
Zeneca 8392
Zeneca 8568
Pioneer 304C
Fl. EXP Howard III ST
Zeneca 8455
Zeneca 8501
Zeneca 8452
Pioneer 3098
Zeneca 8202
Cargill TR 701
Fl. EXP SY68XBY43
Fl. EXP SW31XBY15
Fl. EXP BM5XSY56
Fl. EXP Fla STOP
LSD at 10% level


1


Grain Yield'
1995 2-Yr. Avg.
11.4 95.8
92.9 95.9
86.4 65.6


82.3
81.9
79.2
78.2
69.2
68.3
64.2
62.5
60.2
52.6
43.4
20.0


85.4
63.3

63.5


Silage Yield2
1995 2-Yr. Avg.
13.6 13.3
12.4 13.1
14.2 15.0


15.1
14.2
13.4
14.3
13.1
14.2
14.1
13.2
12.5
13.8
14.2
NS


14.7
13.5

13.8


'Bu/A at 15.5% moisture
2T/A at 65% moisture
Planted: 5-31-95
Population: 26,000 Plants/A in 30" rows
Soil Type: Norfolk loamy fine sand
Fertilization: 150-75-150 Ib/A N-P205-K20
Irrigation: Partial


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