• TABLE OF CONTENTS
HIDE
 Historic note
 Main














Group Title: Commercial corn variety testing results from south-central Florida.
Title: Commercial corn variety testing results from south-central Florida 1985.
ALL VOLUMES CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00075790/00009
 Material Information
Title: Commercial corn variety testing results from south-central Florida 1985.
Series Title: Commercial corn variety testing results from south-central Florida.
Translated Title: Research Report - University of Florida Agricultural Research Center ; 1985-2 ( English )
Physical Description: Serial
Language: English
Creator: Mislevy, P.
Horner, E. S.
Martin, F. G.
Publisher: University of Florida, Agricultural Research Center
Publication Date: 1985
 Record Information
Bibliographic ID: UF00075790
Volume ID: VID00009
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 143646330

Table of Contents
    Historic note
        Unnumbered ( 1 )
    Main
        Page 1
        Page 2
        Page 3
        Page 4
        Page 5
        Page 6
        Page 7
Full Text





HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida





I
947


Agricultural


Research


Research


Report


and Education


Center,


RC-1985-2


Central


Science


Library


OCT


University


1987

FIo MStembe


1985


COMMERCIAL


CORN VARIETY


TEST RESULTS


FROM

P. Mislevy


SOUTH-CENTRAL

. E. S. Horner


FLORIDA


and F


1985


Martin -


Corn


can be extremely


valuable


a livestock


feeding


program.


With


rapid


growth


anrd- high.yieldin


-ability,


corn


harvested


stored


as sila


can supplement pe
may follow winter


High


quality


carbohydrate


calves


with


corn


input,
quality


rennial


grasses


vegetables


silage


at times when


or be used


can provide


possibly
feed.


reducing


dairy
high


their


a pasture
and beef


grain


production
renovation


cattle


costs


with


provide


is low.
program.


Corn


a substantial


growing


Corn


harvested


for silage


at the


proper


stage


maturity


can produce


to 13 t/A of


free


for the


matter


growth


to 4


other


crops


months.
during


This


would


allow


the remaining


land


to be


months.


Corn


forage harvest


at the hard


dent


stage


for silage usually


contains


to 50% dry matter,


carotene,


corn


forage,


control,
necessary


vitamin


adapted


correct


plant


approximat


but low
hybrids


popul


crude


in minerals.


, proper
nations.


seeding


wee


prot


ein and is


produce


high


date, high


sect


high
yields


ertility,


and di


sease


n energy,
of quality


water


control


are


The purpose
silage and/or gr


of this


a in


study was


production


to evaluate


commercial


corn


hybrids


at Ona.


Experimental


Procedure


experiment


was conducted


at the


Agri


cultural


esearc


and Education


Center


(AREC)


Ona.


expe


rimental


esign


was a random


complete


block


with


replications


Twent


-nine


commerce


corn


varieties


were


seeded


on an


Ona fine sand on March

Fertility


1985.


practices


3ertilization
503- micronutri


60 Ib/A
inches


ents


pre-emergence,


tall,


resp


were


1270


lb/A of


prior to seeding.
and 122 and 50 ib/A


actively.


Soil


Nitr
whe:


was 5


0-10-20 (N-P 0
ogen was applied


n


corn


plant


erefore,


-K 0)
at a


were


+ 40 Ib/A


rate


and 24


dolomiti


lime


stone


was


applied


to supply


calcium and


magnes


ium.


A total


inches


irrigation


water


was


applied


using


over


head


I rrl cnrlnn cnrlnt-1 arc


- -


A-*a


cn+r't nl 1









Plant


populations


pest


control


Corn


26,000 p
(active)


was


seeded


plantss


in 30 inch


acre.


Heflbcide


and 2.0 lb/A Lasso


rows


and thinned


practices


tive)


used


pre-emerge


a final


were


population o
Ib/A atrazine


in 35 gallons


water


acre.


insect
seeding


No cultivatisQ)pra
cide Furadan 15


to control


mole


ctices
G (2.7


crickets


were


employed


Ib active/A)


worms


after the c
was applied


when


corn


orn


was


in 7


seeded.


inch


bands


small.


addition
Mesurol\


insecticide


was


applied


was used


for bud


to the seed at the


worm c
rate


control.


The insecticide


commercial


product/100


seed


to repel


birds


Irrigation


A total


of 8.6 inches


water


was applied


using


over-head


irrigation


sprinklers.


Corn


maturity


at harvest


Corn


plants


were


harvested


for dry


matter


field


when


the kernel


most


varieties


were.


at the hard


dent


as recommended


for silage


produ


action.


This
most


eld,


grain-to
bushels


was coincidental


varieties.


forage


-stover


with black


Other variables


dry matter


ratio.


shelled


corn


(per


Grain


cent


layer


recorded
and yie


ield


at 15.5%


values


formation


for the


Ids)


were


at the base
experiment


kernel
conve


of kernels


were


grain


moisture,


rted


express


sed in


moisture.


Results


and Discussion


were
grain


matter


Significa
obtained


yield,
yields


averaged
'Dekalb


11.0
DK 748


(P<0.05)


for forage


kernel moi


differences
dry matter y


sture


commerce


t/A
' to


(Table 1)
a low of


among


yield,


and grain-t


corn


hybrids


These


the 29 co
percentage


o-stover


grown


fields


ratio


mmercial


forage
(Table


at Ona during


ranged


'Golden


from a


Harvest


high o
H-2680'


corn


varieties


dry matter,


Fora


the 1985


,f 13.0


ge dry


season
t/A for


Dry matter


yields


in 1985


averaged


over


all 29 varieties


test


were


2.2 t/A higher


than


the 1984


yields


irrigation,
However. th


Cultural


etc.) :and
e avera


practices


rainfall


ge high


in 1985


temperatures


(seeding


were es
in 1985


fertilizing,


essentially


were


herbicides


he same as 1984.
and 3 F higher f


March,
in 1985


April


and May,


account


respe


for the


actively.


higher


This,


along with


matter


16 days


earlier


seeding


fields.


Percent


forage


matter


at harvest


averaged


42.5


in 1985


which


a year


also


maturing


hnv in rn T-


9.4 t/A for


was


"jT ^ iy t


(cide


v^^


'11









Grain


yield


is another


characteristic


to consider when


selecting


corn


hybrids.
15.5% m


Grain


moisture


producing


down,


yields
(Table


an average


containing


moisture a
harvesting


silage about


49.8%


t harvest.


grain
10-14


in 1985


229 bu/A
dry matter


On a
(kernel


averaged
highest g
shelled
in the


commercial
moisture


ays earlier,


198 bu/A


grain


corn.
entire


this


27.7%),


because


shelled


wielding variety was


adjusted


This
plant


variety ha
and 27.7%


variety would


or could


plant


have


would


siologically mature.


been


have


to
SX 383


a rapid
kernel
be ready
harvested


for
for


been


When


factor


selecting


to consider


corn


hybrids


to be


the grain-to-stover


harvested
ratio.


for silage


This


factor


an important


takes


into


ideration


grain-to-sto
available in
matter yield


grain-to-stover


produce
in a 56-4
desirable
require h


with a
ratio.


high


4%


the -relationphip


ver


ratio


the silage.
and low grain


ratio


grain
grain-t


express
Corn v
yield


(39-61


yields
o-stalk


for backgrounding


high


energy


high


Varieties


feed.


matter
like


between


rain


stove


as a percentage


varieties
d ('Sunbelt


(Table


and medium


ratio.
beef
.When s


yield,
'Dekalb


with
t 1876


stover


This t
cattle o
electing


high grain
DK 789' a


type
or 1


above
by


r yield.
weight o


a relatively


Other


yields


resulted
varieties


(short


silage


actating


a corn
yield and


high
in


(PAG


stalk


would


dairy


hybrid,
d high


'Agri-Tech


criteria.


grain
forage


a low


SX 383)


which


resulting


more


cattle


choose


grain


GK 925'


a variety


-to-stover
fit this


Southern


the 1985
commonly


insecticide


growing
called


was


bud worm damage


temic


corn rust


season.


worm


utilized


was


protection


evident
from


ccinia


Some
was


because


polysora)


army worm damage


evident


only


on corn


not a serious
(Spodoptera f


plants


20% of the-plants


nt at the sharter p
the Furadan used


plant
d at


4-5 feet


were


heights
seeding.


problem


frugip


attacked.


Srda
No


during
Smith)


mainly


Variety


selection


When
production


have


considering
in south c


performed


these data
have produce


and 4


year


objective,
21' a


commerce


central


corn


Florida


consi


'Ring..Around
ed an average


period,


Ring Around


averaged


over


stently Well
1604'.


hybrids


it is d


a three


King
of
2).


dry matter yield


respect


1604,


tivel


Golden


(Table


Harvest


178 and 178 bu/A shelle


for forage


desirable


and/or


select


six year


PX 95'


10.0,


rain


vari


eties


that


and 'Jacques


10.0


If grain
2680, Ja
d corn a


and 9.8 t/A


JX 247'


over


a 5,


production


cques


JX 247


Coker


sture


siiage


cons


as sil


yield an


corn


tall.


riod.


Northrup









Varieties


Dekalb


DK 789,


that
Agri


performed


-Tech


well


GK 925,


at Ona


Jacques


in 1985 were


8700'


'Dekalb


'Dekalb


T 1230'


DK 689'


, 'McCurdy


8172


Coker


21 and PAG SX 383.






Table


Forage


ASREC


, Ona,


grain
1985.


yields


other


agronomic


variables


of commercial


corn


variety


gro\


Forage


Brand


Variety


Yield


dry matter
At harvest
%


Grain.
Yield


Kernel
moisture


stove


bu/A


Dekalb
Sunbelt
Coker
Dekalb
Northrup
Pioneer


DK 748


1876


C 8905
DK 689


King


PX 9
3055


DK 789


Dekalb
Funks


Agri-Tech
Agri-Tech
Jacques


9002


GK 900
GK 925


8700


JX 247
T 1230


Jacques
Dekalb
Sunbelt
Pioneer
Pioneer
McCurdy


Coker
Funks


1860


3192


3165
8172


13.0


12.8 a


12.4
12.4
12.3
12.3
12.3
12.2
11.7
11.6
11.3
11.1
11.0
11.0
10.9
10.7
10.6
10.6
10.6
10.5
10.5
10.0
10.0


G4733
SX 383


McCurdy
Ring Around
Paymaster


Northrup
Jacques


Ring


King


Around


Paymaster


Jacques
Golden


AVERAGE


8150
1604
8990


41.5
37.9
40.4
44.8


a-c
a-c
a-c
a-c


38.9
42.9
39.7
43.9
40.7
41.2
39.8
41.6
42.4
46.3
43.5


40.2
41.1


c-e


a-c
a-c
a-c
a-c
a-c
a-c


222 ab


c-e
a-e
c-e
c-e
c-e


a-c
a-c


215 ab
212 ab


a-c


216 ab


a-c
a-e


a-c
a-c
a-c


212 ab
216 ab


c-e
c-e


49.8 a


45.1
40.6
39.9
38.7
49.7
47.9


PX 9692


7900
1502
8951
8400


Harvest


H-2680


11.0


a-c
a-c


c-e
c-e


a-c
a-c


c-e


42.6 b-e
45.0 a-d
42.5


a-c
a-c
a-c


31.8
38.3
33.0
31.5


33.0 b-d


33.9
33.5
33.9
28.3
32.1
31.7
31.3
29.8
31.0
29.6
32.2
30.1
31.4
30.6
27.7
29.0
31.5
28.9
29.6


26.7 k


27.3
30.9
28.6
29.7
30.9


41-
39-
40-
43-
45-
43-
49-
40-
44-
49-
50-
47.
51-
47.
47,
46
53
53
43
56
50
55
41
52
53
47
52
56
58
48


__I I ~--. --- -- -----------~ f~ I--


I IIII I_ I| _ II__ III__ I IL III I


Gra






Table


Forage


and grain


yields


and other


agronomic


variables


of commercial


corn


varieties


grow


AREC,


Ona,


1985


cont.


*
Means


within


a column


followed


same


letters


are not


significantly


different


(P<0.05)


usin


Duncan


s Multiple


Range


est.


4Based
*'Based


on 15.5% moisture


(shelled


corn).


TDetermined


at harvest.


Calculated


on oven


basis.


Seeding

Plant p


date:


population


March


(final)


1985

: 26,000 plants/A


Insecticide:


Furadan


15 G(R)


18 lb/A


commercial


product


in 7


inch


band


over


corn


row


at seeding.


spacing:


30 inch


Fertilization:


0-127-254


Ib/A


pre-energence


05-K 0,
rn. l22


respect


tivel
lb/A


+ 40


N when


lb/A F
corn


503 micronutrients


plants


were


appli


24 inches


6
ta


respect iv


ely.


Herbicide:


Pre-emergence


application


of Aatrex(R)


and Lasso(R)


at 2.0


lb/A active,


respectively.


Irrigation:


Applied


8.6 inches


water


overhead


sprinklers.


_ __ __ I _I I









Tabl


Average


varieties


grain


grown


and forage dry matter


at Ona for


three


fields


years


selected


dent


corn


1980-1985


Brand


Variety


Years
tested


Grain


matter


15.5% moisture


bu/A


Ring


Around


1604


10.0


Golden Harvest


Jacques
Coker
Northrup
McCurdy
Jacques
Big-D
McCurdy
Funks


Paymaster
Northrup
Funks


King


H 2680
JX 247


PX 95
67-14


10.0


JX 8400


6986
8150


G-4740


8951


King


Asgrow
Ring Around


Asgrow
Funks
Dekalb
Coker
AVERAGE


10.1


PX 9692
G 4733
RX 909


1502


RX 114
G-4507
XL-395


8.9


I I__I II I_ II I~_____ I I II




University of Florida Home Page
© 2004 - 2010 University of Florida George A. Smathers Libraries.
All rights reserved.

Acceptable Use, Copyright, and Disclaimer Statement
Last updated October 10, 2010 - - mvs