<%BANNER%>
Variety trials of upland cotton
ALL VOLUMES CITATION SEARCH THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00053598/00001
 Material Information
Title: Variety trials of upland cotton
Series Title: Jay, WFREC research report
Physical Description: v. : ; 28 cm.
Language: English
Creator: Peacock, H. A ( Hugh Anthony ), 1928-
Dunavin, Leonard Sypret, 1930-
Wright, D. L ( David L )
Agricultural Research and Education Center, Jay
West Florida Research and Education Center
Publisher: Agricultural Research and Education Center
Place of Publication: Jay Fla
Creation Date: 1990
Frequency: annual
regular
 Subjects
Subjects / Keywords: Cotton -- Periodicals -- Florida   ( lcsh )
Cotton -- Varieties -- Testing -- Periodicals   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
serial   ( sobekcm )
 Notes
Issuing Body: Issues for <1992- > published by the Institute of Food and Agricultural Sciences, University of Florida, Gainesville; issues for 1995- issued by the Center under its later name, West Florida Research and Education Center.
General Note: Description based on: 1990; title from caption.
General Note: Latest issue consulted: 1999.
General Note: Center director: H.A. Peacock, < -1998>; L.S. Dunavin and D.L. Wright, <1999- >.
 Record Information
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62364396
lccn - 2005229400
System ID: UF00053598:00001

Full Text
loo
FSo-

01 Agricultural Research and Education Center
Jay, Florida

Jay, AREC Research Report WF90-3 February, 1990

Variety Trials of Upland Cotton

H. A. Peacockt

Cotton was a major crop in Florida at one time. Acreage has declined, how-
ever, over the last 50-60 years because of insects, price fluctuation, acreage
increase of other crops, and other factors.

We have grown a cotton variety trial at AREC, Jay for the last 10 years to
determine those varieties best adapted to this area. Variety trial results for
1989 and averages over several years are included in this report. Also included
are results from variety trials grown in Santa Rosa, Okaloosa, and Calhoun Coun-
ties, as well as variety trials grown in Brewton, Alabama.

Forty cotton varieties were tested in a single trial replicated 4 times in
1989 on a Red Bay sandy loam (Typic Paleudult) to determine yield. All varieties
were planted 26 April at the rate of 20 Ibs/acre acid delinted seed. A preplant
application of 250 lbs/acre 0-30-15 was disked into the soil along with 1 pint/
acre Treflan. The stand was thinned to 3-4 plants/foot of row. Ammonium nitrate
was applied as a top-dressing at 100 lbs/acre. The plots were harvested 15 Nov-
ember and weighed. No supplemental water or potash was applied to the plots.
Yields were reduced by treatments with arsenicals to control nutsedge. Climato-
logical data for January through December at AREC, Jay are shown in Table 1.

Yields were fair for most varieties. The 23.96 inches of rainfall in June
prevented adequate insect control and the first crop of bolls was lost. In
addition, the treatments with arsenicals to control the nutsedge stunted the
cotton and turned it red. In spite of the abnormal season and growing conditions,
some cotton was harvested.

Data on yield at AREC, Jay in 1989 along with 2-, 3-, 4-, 5-, and 6-year
average yields are presented in Table 2. The highest yielding variety of the
varieties grown 3 years was Northrup King KC380; the highest yielding variety
of the varieties grown 6 years was Delta and Pine Land DPL50.

Data on yield of several cotton varieties grown at 3 locations in northwest
Florida are presented in Table 3. Note that the highest yielding cultivar planted
in all 3 counties was Delta and Pine Land DPL50 followed by Coker 315 and Stone-
ville 453.

Data on yield and other characteristics of cotton varieties grown at Brewton,
Alabama in 1989 are presented in Table 4. The highest yielding variety of varieties
grown 3 years was Northrup King KC380 followed by PD3. PD3 is a variety developed
in the cotton breeding program at Pee Dee AREC in Florence, SC. PD3 is classified
as a high quality cotton; that is, it has stronger fibers than regular upland
varieties grown in the Southeast.

The economics of cotton production are preseee ind-i--ab-e-4-wi-th reak-even
prices presented in Table 6. Central Science
; LiMrary -
tProfessor and Center Director, AREC, Jay.

FEB 22 1990

University of Florida








Varieties recommended by the University of Florida, IFAS, Extension Service
that should yield well under normal conditions are as follows:

Coker 304 Deltapine 41
Coker 310 Deltapine 50
Coker 315 Deltapine 60
McNair 235 Deltapine 90*
McNair 220 Northrup King KC380
Stoneville 825 Northrup King KC311**
Stoneville 506 Tifcot 56**

*To get the best performance from Deltapine 90, care must be taken to
prevent excessive growth. A common error is to overfertilize. On the
heavier soils, N application should not exceed 50 lbs/acre unless
you have previous history of Deltapine performance on the soil. If
too much N is applied, excessive plant growth and poor fruiting will
result.

**Northrup King KC311 and Tifcot 56 have been in the Florida Cotton
Variety test for only 3 and 1 years, respectively. Nevertheless,
they have performed well in these tests and in commercial fields
and are therefore included provisionally in the recommended variety
list.

If cotton follows soybean or peanut, N fertilization should be limited to
30-50 lbs/acre to prevent excessive vegetative growth.



Table 1. Climatological data for the Agricultural Research and Education Center, Jay. 1989.

Precipitation Temperature

inches OF Solar Radiation

Month 1989 41-year Avg. Avg. Max. Avg. Min. Watts per square metert
January 0.66 4.87 69.4 45.1 74,341
February 2.65 5.17 65.1 43.0 84,512
March 7.79 6.14 72,1 52.0 114,699
April 2.84 4.74 77.3 51.5 166,352
May 8.45 4.39 84.3 61.1 163,564
June 23.96 7.50 88.0 69.3 145,259
July 7.94 7.90 90.2 71.4 150,461
August 3.00 6.60 92.1 69.8 160,851
September 6.81 6.45 86.4 65.8 107,606
October 3.75 3.48 78.2 52.4 123,197
November 10.76 4.02 71.0 46.2 88,751
December 4.98 5.24 54.8 33.2 68,955
Total or Avg. 83.59 66.50 77.4 55.1 1,448,548
tThe solar radiometer was out of operation during 5 days in September, 1989.


-2 -







Table 2. Cotton Cultivar Test 19891/ With Multiple Year Averages.

Agricultural Research and Education Center
Jay, Florida

2-yr 3-yr 4-yr 5-yr 6-yr
Cultivar 1984 1985 1986 1987 1988 1989 Ave. Ave. Ave. Ave. Ave.
-------------------------kg/ha------------------------

DPL'90 --- 927 1145 1431 919 877 898 1076 1093 1059 ----
DPL 41 1576 711 1040 1464 805 730 768 1000 1010 750 1054
DPL 50 1669 896 1161 1529 903 730 837 1067 1091 1052 1155
DPL 20 --- 896 1057 1236 781 618 700 878 923 918 ----
DPL 51 ---- --- -- 647 -- -- -- -- ---

DPL X79114-051-11-21 -- -- 1350 1226 862 830 846 1106 1167 -- --
DES 119 --- -- 865 1691 732 742 737 1055 1008 ---
Hartz HX1014L0 ---- -- ------ -- 721 -
Hartz HX1032 ---- --- ---- --- 7 771 -- -- --
Hartz HX 1133L0- ---- --- --- -- 506-- --- --

Stoneville 907 ---- ----- -- -- 780 -- -- -- ---
Stoneville 453 --- 834 1105 1464 894 624 759 994 1022 984 ---
Stoneville 1324 ---- -- ---- ---- 559 --- ---
Stoneville 6025 ---- --- --- ---- 780- --
Stoneville 616 ---- ------- --- 612 ---

Stoneville BR-636 ---- --- ---- ---- 544 -- --
Stoneville 506 1514 773 1259 1626 829 721 775 1059 1109 1042 1120
Stoneville 825 1607 834 1161 1399 1000 712 856 1037 1068 1021 1119
Terra C-40 ---- -- ---- --- 821 700 761 --- ---- ---- ----
Terra C-30 --- ---- -- 927 750 839 ---- ---- -------

Tifcot 56 6 6---- -- --- --- -- 633---
Gat 85-355 ---- --- ------ -- 795
Gat 85-278 --- -- ------ 692
McNair 235 1516 773 1001 1236 789 574 652 866 900 875 982
, McNair 220 16074~711 1096 1236 732 642 687 '-10 927 883 1004

KC 380 --- -- -- 1464 992 877 935 1111 --
KC 311 ---- --- -- 1626 927 809 868 1121 -- --- --
Coker 320 6--- -- -- --- -- 671 -- -----
Coker 315-1901 1637 711 960 1464 894 712 803 1023 1008 948 1063
La. Barb. 392-FN ---- --- -- ---- 959 642 801 --- -- -- -

La. 850075-fg --- -- -- 712 -- -- -----
La. 86C-L0 ne --- -- --1301 886 742 814 976 -- -- --
-La. 83-3-L* ne --- --- --- -- 500 -- -- -- ---
Hyperformer Tropical 225 ---- --- --- -- 662-
Hyperformer Tropical 205 --- -- --- 612- --

Dunn 1851 ---- --- 675 642 659 --
Dunn 1850 -- --- --- -- 677 -- ---- ---
Dunn 1324 -- -- -- -- -- 771 ---
Dunn 325 -- 1431 667 692 680 930 -- --
-Pima S-6 --- -- --- 594 -- -- -

Continued ---
3 -






Table 2. Cotton Cultivar Test 19891/ With Multiple Year Averages (Continued)

2-yr 3-yr 4-yr 5-yr 6-yr
Cultivar 1984 1985 1986 1987 1988 1989 Ave. Ave. Ave. Ave. Ave.
-------------------------kg/ha----------------------

LSD05 179 155 173 130 166 147 --- --- --- ---
LSD01 237 216 228 195 218 206 --- --- --- ---
CV % 12 18 14 7 14 15 --- --- --- --- ---

1/1989 test grown on Red Bay sandy loam fertilized with 250 lbs/A (280 kg/ha)
0-30-15, top-dressed with 100 lbs/A (112 kg/ha) ammonium nitrate. Planted
26 April; harvested 15 November. Usual cultural practices. No supplemental
-potash or water. Yields reduced by treatment with MSMA to control-yellow
nutsedge.


-4-







Table 3. State Cotton Cultivar Test 1989


Yield
Santa Rosa Okaloosa Calhoun 2-County 3-County
Cultivar County County County Ave. Ave.
--------------------lbs lint/Acre-------------------

Stoneville 453 1337 964 437 --- 913
Deltapine 50 1335 964 646 -- 982
Stoneville 506 1332 875 456 --- 888
Coker 315 1325 874 703 --- 967
PD3 1316 --- 570 943

DES 119 1291 --- 418 854
Tifcot 56 1276 735 570 --- 860
McNair 220 1119 1037 551 --- 902
Deltapine 41 1072 920 570 --- 854
Ellis Bros. S-55 1061 529 456 --- 682

Deltapine 90 1045 -- -- -- --
Gumbo 500 982 1059 475 --- 839
Pima S-6 733 618 361 --- 571
McNair 235 --- 622 -- --
Northrup King KC380 --- 919 -- --

Northrup King KC311 --- 640 --
Coker 320 --- 875 --
Coker 139 --- 1054 -
Deltapine 20 --- 1217 --
Hyperformer Tropical 205 -- 828 --

Hyperformer Tropical 225 -- 780 -- --
Deltapine 51 --- --- 627 -- -
Ellis Bros. S-89 1322 -- --- --
Ellis Bros. S-1001 1073 --- ---

Santa Rosa County test grown on Red Bay sandy loam soil fertilized with 300 lbs/A
6-18-18 on June 7-'300 lbs/A 6-18-18 on June 13, and 200 lbs/A ammonium nitrate
on July 12. Planted May 4, harvested November 13 and scrapped mid-December. Fifty
inches rainfall during growing season. Reported by Mike Donahoe.

Okaloosa County test grown on Notcher gravelly sandy loam and Orangeburg sandy
loam soil fertilized with 400 lbs/A 3-9-18 at planting, topdressed with 400 lbs/A
13-13-13. Planted May 10, harvested October 27. Reported by Gerald Edmondson.

Calhoun County test grown on Orangeburg sandy loam soil fertilized with 400 Ibs/A
5-10-18, topdressed with 150 lbs/A ammonium nitrate. Also received 10 lbs/A sul-
fur in fertilizer. Planted May 17, harvested December 29. Plots received 40 inches
rainfall in June. Reported by Terry Stone.


-5-








Table 4. Performance of Cotton Varieties at Brewton, Alabama. 1989.1/

1989 2-yr Ave. 3-yr Ave.
Cultivar lint/acre Lint Earliness lint/acre lint/acre
lb. pet. pet. lb. lb..

KC 380 1,235 41 92 940 1,114
Deltapine 90 1,191 41 91 943 967
HS 46 1,177 41 94 951 ---
Coker 315 1,144 45 92 873 996
PD 3 1,134 43 89 859 1,002

Delcot 344 1,107 41 93 857 946
Coker 130 1,094 42 92 839 983
DES 119 1,081 42 94 873 969
Suregrow 35 1,078 40 93 -- --
Coker 320 1,064 43 94 839 969

Pima S-6 1,048 40 71 -- --
Stoneville 453 1,046 42 94 -- --
Tropical 225 1,030 40 90 -- --
Deltapine 20 1,013 40 95 769 870
Tifcot 56 992 40 92 770 939

Deltapine 51 973 40 93 849 --
Deltapine 50 968 39 92 795 871
Terra C 30 949 39 91 774 869
McNair 235 913 40 93 708 864
KC 311 911 39 93 -

Coker 84-828 907 40 93 756
S1001 893 40 92 -- --
Stoneville 112 888 40 94 697 759
Stoneville 506 847 40 94 659 773
Stoneville 825 809 40 95 654 813

Arkot 518 800 40 92 .609, 752
Stoneville BR 115 764 40 86 --
Suregrow 55 731 43 94 -- --
Terra C 40 731 40 93 621 783
Stoneville 907 725 40 94 -- --

Test Mean 975
LSD (.05) 205
CV % 15

-/Reported by Dr. W. C. Johnson,.Professor, Auburn, Alabama.


-6-







Table 5. Economics of Cotton Production. Estimated Costs of Producing One Acre
of Cotton, North Florida, 1990.1/



Item Unit Quantity Price Value

Cash Expenses:
Seed lb. 14.00 .60 $ 8.40
Fertilizer:
Nitrogen (N) lb. 80.00 .24 19.20
Phosphate (P205) lb. 60.00 .23 13.80
Potash (K20) lb. 80.00 .15 12.00
Lime ton .50 22.00 11.00
Herbicide acre 1.00 27.50 27.50
Insecticide appl. 13.00 7.10 92.30
Defoliant acre 1.00 5.75 5.75
Scouting fee acre 1.00 6.00 6.00
Boll Weevil Eradication2 acre 1.00 <12.50 <12.50
Spraying (air) appl. 7.00 4.00 28.00
Tractor (135hp) hr. 2.75 8.10 22.28
Tractor (55hp) hr. 2.25 3.10 6.98
Truck, pickup mi. 50.00 .13 6.50
Other machinery hr. 5.00 2.40 12.00
Custom harvest acre 1.00 55.00 55.00
Hired labor hr. 2.50 4.50 11.25
Land rent acre 1.00 20.00 20.00
Ginning lb. 700.00 .09 63.00
Warehousing lb. <700.00 .02 <14.00
Interest on cash expenses3 $ 447.46 .065 29.08

Total Cash Expenses $476.54

Fixed Costs:
Tractor (135hp) hr. 2.75 11.10 30.53
Tractor (50hp) hr. 2.25 5.70 12.83
Truck, pickup mi. 50.00 .16 8.00
Other machinery hr. 5.00 4.92 24.60
Total fixed costs 75.96

Total Costs $552.50

1Prepared by Tim Hewitt, Extension Economist, AREC, Marianna, FL.
2Fees for 1990 are currently $25/acre. This budget assumes that one-half of
this assessment will be paid from general revenue of the State of Florida.
Please note, at the time of publication of these Guidelines, plans were
underway to hold a grower referendum to increase the boll weevil eradication
assessment by $10. per acre for the next five years. To obtain an accurate
up-to-date figure for budgeting for the eradication, growers should check
with their County Extension Office.
313% for 6 months.


-7 -







Table 6. Break-Even Cotton Prices at Various Yields.1


Yield (Ib/acre) Price for cash (cost $/lb) Price for total costs ($/lb)


400
450
500
550
600
650
700


$1.19
1.06
.95
.87
.79
.73
.68


$1.38
1.23
1.10
1.00
.92
.85
.79


1Prepared by Tim Hewitt, Extension Economist, AREC, Marianna, FL.














































-8-