Material Information |
|
Title: |
Hybrid field corn variety test results from the Everglades Agricultural Area |
|
Series Title: |
Bradenton AREC research report |
|
Physical Description: |
v. : ; 28 cm. |
|
Language: |
English |
|
Creator: |
University of Florida -- Agricultural Experiment Station. -- Dept. of Agronomy University of Florida -- Institute of Food and Agricultural Sciences Agricultural Research & Education Center (Bradenton, Fla.) |
|
Publisher: |
Agricultural Research & Education Center, University of Florida, Institute of Food and Agricultural Sciences |
|
Place of Publication: |
Bradenton Fla |
|
Frequency: |
annual regular |
Subjects |
|
Subject: |
Corn -- Varieties -- Field experiments -- Periodicals -- Florida -- Gainesville ( lcsh ) |
|
Genre: |
government publication (state, provincial, terriorial, dependent) ( marcgt ) |
Notes |
|
Numbering Peculiarities: |
Issues <1981- > are part of the Agronomy research report series, published by the Institute of Food and Agricultural Sciences, Gainesville, Fla. |
|
Numbering Peculiarities: |
Some years combined. |
|
General Note: |
Description based on: 1978/1979; title from caption. |
|
General Note: |
Latest issue consulted: 1982. |
|
Funding: |
Florida Historical Agriculture and Rural Life |
|
/00
..,5 ronomy Research Report 83-9
S- Department of Agronomy
Agricultural Experiment Station, IFAS
S2. University of Florida
Gainesville, Florida-
Hybrid Field Corn Variety Test Results from the Everglades
Agricultural Area, 1982.
Cooperators:
C. G. Chambliss, AREC Bradenton
K. D. Shuler, Palm Beach County Extension
R. L. Hanas, Belle Glade, Grower
E. S. Homer, Dept. of Agronomy, Gainesville
F. E. Boss, Palm Beach County Extension
J. A. Maday, Intern student, Ag. Ext. Education, Gainesville
The 1982 field corn variety test was planted in a commercial field
of corn on A. Duda & Sons Farm (Rutledge Lane) 5.5 miles south-east of
Belle Glade, Florida. The soil was a Pahokee muck with the following soil
test values at planting time (after fertilization): pH-6. P-24, and K-221
(Belle Glade AREC soil test procedures). The fertility level was higher
than that currently recommended for field corn. Sugarcane had been grown on
this field prior to the corn crop.
The variety test was planted on February 26, 1982. The experimental
design was a randomized complete block with four replications of 33 different
varieties. Plots consisted of three 34-inch wide rows, 22 feet long, with
data taken from one row. Plots were laid out in such a manner that only
20 feet of row was planted leaving a 2 foot space between the ends of
plots. In this report the entire 22 feet was used as a basis for calculating
yields.
Cultural practices, fertilizer, and pesticides were as follows:
Days Before or
After Planting
14
3
3
14
17
19
21
33
Date
Teb. 12
Teb. 23
Teb. 23
Rate/Acre
1000 lbs.
Comments
Broadcast
Feb 26
March 12
Material
Fertilizer
0-8-46 with minors
Commercial field planted
Thimet 15G
Field trial planted
Atrazine
Basic H
Techmangam-
Techmangam
Techmangam
Atrazine
Basic H
Toxaphene and Lannate
Techmangam
Toxaphene and Lannate
Techmangam
Lorsban
Lorsban
Techmangam
Lorsban
Lorsban
Lannate
Toxaphene and Lannate
Toxaphene and Lorsban
2 lbs.
2 pts.
2 lbs.
2 lbs.
2 lbs.
2 Ibs.
1 pt.
1 pt. ea.
2 Ibs.
1 pt. ea.
1 lb.
1 pt.
1 pt.
1 lb.
1 pt.
1 pt.
1 pt.
1 pt. ea.
1 pt. ea.
March
March
March
March
April 3
April
April
April
April
April
April
April
Post emergence
First silk
Pioneer 3320
10 lbs. In the drill to con-
trol wireworms
/
The field was cultivated twice for weed control. Variety plots were
thinned to 34 plants per 22 feet of row (23,760 plants per acre) on March 23
and 24.
The corn was harvested on June 23 and 24 (117 and 118 days after planting).
Grain yields in bushels per acre, corrected to 15.5 percent moisture, are
presented in Table 1. Yields ranged from 50 to 140 bushels per acre. Data for
several other traits that may be of interest in selecting a corn hybrid are
also presented in Table 1.
The commercial field in which the variety test was located was planted
at 26,000 plants per acre with a final stand of 24,000 plants. It was estimated
to have yielded 85 to 90 bushels per acre.
It is felt that the unusually low yields for the varieties in this trial
as well as the commercial field were due primarily to heavy rains in May and
June which left the soil water logged for several weeks.
Weather Information as Recorded at the AREC-Belle Glade
Solar Radiation
Rainfall (inches) (Langleys per day)
Plantings to Mid-silk 1982 55 Yr. Avg. 1982 10 Yr. Avg.
Feb. 26 April 27 10.97 5.67 452 461
Mid-silk to Maturity
April 28 June 23 22.79 12.13 496 497
Total 33.76 17.80 473 479
Temperature (F-)
Min. Max. Mean 55 Yr. Avg. Mean
Planting to Mid-silk 61.4 83.2 72.3 68.9
Mid-silk to Maturity 66.4 86.3 76.3 76.3
Table 1. Summary of Results for 33 CommperTial Corn Hybrids Grown on Organic Soil
Near Belle Glade, Florida, 1982.-
Percent
Company Yield 2/ Percent Days Lodged
or Bushels- Moisture To 5 Blight/ at
Brand Hybrid Per Acre At Harvest Silk- Index- Harvest
Ring Around
Funks
McCurdy
DeKalb
Funks
DeKalb
Jacques
P-A-G
Pioneer
McCurdy
Golden Harvest
Jacques
Asgrow
Asgrow
Pioneer
Big D
Funks
DeKalb
McCurdy
McCurdy
McNair
McCurdy
Funks
Ring Around
McNair
Golden Harvest
Coker
Funks
DeKalb
Coker
Pioneer
DeKalb
Funks
RA1502
G-4522
84aa
XL-61
G-4733
XL-71
8220
SX373
3160
8150
H-2775A
JX247
RX114
RX909
3369A
6986
G-4323
XL-395A
8230
6714
508
80-72
G-4507A
RA1604
488
H-2680
22
G-4740
XL-82
77B
3320
1295
G-4864
3/
a-
ab
abc
bcd
b-e
b-f
c-f
c-g
d-h
d-i
e-j
e-j
e-j
f-k
g-1
g-1
g-m
g-m
g-m
h-m
h-m
h-m
h-m
h-m
i-m
i-m
i-m
j-m
j-m
k-m
1m
m
n
26.6
27.1
27.4
28.8
26.7
27.9
25.0
28.6
24.0
26.5
28.8
29.3
25.2
27.4
27.6
29.1
22.6
31.9
29.9
29.0
31.7
25.7
29.3
28.9
32.4
29.3
29.1
28.5
28.8
33.9
21.9
28.7
28.1
1/
-Average of 4 replication at 23,760 plants per acre (7.8 inches
X 34 inches between rows).
-/At 15.5 % moisture. 3/Means within this column followed by the
not significantly different.
-/Hybrids with <59 days to 50% silk had reached full silk on the
were examined for silking.
59
< 59
59
< 59
59
< 59
< 59
< 59
< 59
59
64
59
62
60
< 59
61
< 59
67
62
62
69
63
59
61
67
59
59
61
60
67
59
69
63
between plants
same letter are
first day plants
5Blight Index: 0.5 = slight, to 5.0 = very severe. Ratings were made June 1,
1982, one month after median mid=silk date.
2.8
3.0
2.8
3.0
2.8
3.5
3.0
3.2
3.5
3.5
3.5
3.2
4.0
3.5
3.2
4.0
3.5
3.2
3.0
3.0
2.8
4.0
3.0
3.5
2.8
3.5
4.0
3.2
3.5
3.5
3.5
2.8
3.5
|