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Portageville, Pemiscot County
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* September 2, 2009.
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Director:
Jake Fisher
P. O. Box 160
Portageville, MO 63873
Phone: 573-379-5431
Fax: 573-379-5875
Email:FisherJ@missouri.edu
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Missouri Cotton News - AgEBB
Missouri Cotton News |
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| November 2001 |
| AGRONOMISTS | PEST MANAGEMENT | IRRIGATION |
| Cotton: Bobby Phipps | Insects: Michael Boyd | Joe Henggeler |
| Soil: Gene Stevens | Weed Science: Andy Kendig | |
| Area Specialists: | Diseases: Al Wrather | |
| Mike Milam | | |
| David Guethle | AG ENGINEERING | |
| Warren Cork | Van Ayers | |
| Anthony Ohmes | | |
| Jeff House | | |
This newsletter is published for the Missouri Cotton Industry.
Editor: Bobby Phipps
State Extension Cotton Specialist
Variety Trials Results for 2001
The variety trials were very good this year. We have not
received the test results for the fiber quality. The trials were
all irrigated. The trial on the sandy soil was replanted and
this needs to be considered when evaluating the data. Its
results are more valuable for replanting decisions. The crops
were planted earlier than normal this year and were harvested at
a normal date. Therefore, late maturing varieties will have
yielded better than normal in comparison to the early maturing
varieties. All trials had conventional herbicides used except
the Roundup Ready Trial. The Roundup Trial had high rates of
Roundup applied.
What About That Top Crop?
I am getting inquiries about the bolls that did not open in the
top of the plant. In the past the weevils removed all of these
and therefore we did not see them. In many fields this year some
plants were flowering into September, whereas in most years we
saw almost no flowers after August 15. Flowers after this date
have almost no chance of producing lint due to a shortage of
DD60’s. Some of the bolls in the top of the plant that did open
in years past would have been removed due to weevil damage.
High Micronaire Values
Throughout the Delta high micronaire values are a problem this
year. Dry periods immediately after flowering tend to cause the
fibers to be shorter than usual and this in turn will lead to
high micronaire values. Timely irrigation will prevent some of
these problems. If irrigation is not possible then the easiest
solution is to use the Lewis method of timing defoliation.
Defoliation is timed according the micronaire of the bottom four
bolls. We can run this test at the Delta Center for ten dollars
a sample. This requires picking bolls off the bottom four first
positions on eight plants in each of four locations in the field
and having us run the test. With cotton at the low prices of
today the 4.25 to 6.25 cent discounts make it very important to
control the micronaire.
Clarkton Variety Trial
Yield Turnout
PM 1199 RR 870 a 0.34 a-f
FM 966 859 ab 0.34 b-f
SG 215 B/R 859 ab 0.35 ab
SG 747 848 ab 0.35 a-d
FM 958 820 abc 0.33 d-i
STV 474 786 a-d 0.33 b-i
SG 105 744 a-e 0.31 ij
DPLX 99X35 742 a-e 0.35 abc
BXN 47 742 a-e 0.33 b-i
ST 457 730 b-e 0.35 a-d
PM 1218 B/R 725 b-e 0.35 a-d
PSC 355 725 b-e 0.33 b-i
ST 4892BR 710 cde 0.34 b-g
DP 451 B/R 703 cde 0.34 a-e
DP 491 703 cde 0.33 d-i
DPLX 99M03 697 cde 0.31 hij
ST 4691B 694 cde 0.31 g-j
BXN 49B 689 cde 0.35 a-d
DP 436 RR 686 cde 0.32 e-j
SG 501 B/R 673 def 0.32 f-j
GC 106 666 def 0.33 b-h
DPLX 00S04 662 def 0.34 a-f
ST 4793R 655 def 0.34 b-g
DES 816 655 def 0.34 a-f
SG 521 RR 644 def 0.33 b-h
G/AP 4600 RR 613 efg 0.32 e-j
DP 555 BR 606 efg 0.33 b-i
DES 810 602 efg 0.3 j
GC 271 541 fg 0.36 a
ST X9905 539 fg 0.31 ij
GC 108 509 g 0.34 b-f
G/AP 1500 RR 498 g 0.33 c-i
-------------------------------------------------
Standard Deviation 82.7 0.014
CV 11.93 4.18
Planted 4/30/01
Harvested 10/18/01
Senath Variety Trial
Yield Turnout
FM 958 1525 a 0.38 bc
DPLX 99M03 1489 ab 0.37 c-g
SG 747 1461 abc 0.37 c-h
DP 491 1447 abc 0.37 bcd
GC 106 1439 a-d 0.36 c-h
ST 4892 BR 1433 a-d 0.37 c-h
DPLX 99X35 1416 a-e 0.39 ab
SG 215 B/R 1413 a-f 0.35 f-j
GC 108 1411 a-f 0.35 d-j
PSC 355 1402 a-f 0.36 d-j
SG 521 RR 1402 a-f 0.35 h-k
FM 966 1398 a-f 0.36 c-h
ST 4691B 1383 a-g 0.37 c-g
STV 474 1374 a-g 0.37 c-h
G/AP 4600 RR 1372 a-g 0.35 d-j
DP 451 B/R 1335 a-g 0.34 jkl
DP 555 BR 1331 a-g 0.4 a
DES 816 1330 a-g 0.34 jkl
BXN 47 1327 a-g 0.37 c-h
ST X9905 1327 a-g 0.37 b-e
DPLX 00S04 1327 a-g 0.37 c-h
PM 1218 B/R 1322 a-g 0.37 c-f
SG 105 1294 a-g 0.36 d-j
ST 457 1290 a-g 0.35 e-j
DP 436 RR 1263 b-g 0.34 jkl
SG 501 B/R 1230 c-g 0.34 jkl
PM 1199 RR 1204 d-g 0.35 g-k
GC 271 1204 d-g 0.32 l
ST 4793R 1202 d-g 0.36 c-i
G/AP 1500 RR 1177 efg 0.34 i-l
DES 810 1174 fg 0.33 kl
BXN 49B 1154 g 0.35 f-j
-------------------------------------------------
Standard Deviation 137.6 0.012
CV 10.27 3.44
Planted 4/27/01
Havested 10/19/01
Sikeston Variety Trial
Yield Turnout
PM 1199 RR 1420 a 0.38 a-f
FM 966 1372 ab 0.37 a-g
SG 215 B/R 1361 abc 0.36 d-j
SG 747 1355 abc 0.36 d-i
FM 958 1341 abc 0.39 a
STV 474 1327 a-d 0.37 a-g
SG 105 1322 a-d 0.36 g-j
DPLX 99X35 1322 a-d 0.39 a
BXN 47 1296 a-d 0.38 a-d
ST 457 1288 a-e 0.37 a-g
PM 1218 B/R 1288 a-e 0.38 abc
PSC 355 1263 b-f 0.36 e-j
ST 4892BR 1221 c-g 0.39 ab
DP 451 B/R 1218 c-g 0.35 h-k
DP 491 1218 c-g 0.38 a-e
DPLX 99M03 1213 c-g 0.36 f-j
ST 4691B 1210 c-g 0.37 b-h
BXN 49B 1210 c-g 0.37 b-h
DP 436 RR 1210 c-g 0.34 jkl
SG 501 B/R 1185 d-h 0.36 g-j
GC 106 1177 d-h 0.36 c-i
DPLX 00S04 1145 e-h 0.36 c-h
ST 4793R 1135 fgh 0.38 a-d
DES 816 1124 fgh 0.34 i-l
SG 521 RR 1123 fgh 0.36 g-j
G/AP 4600 RR 1110 gh 0.37 c-h
DP 555 BR 1079 ghi 0.39 a
DES 810 1079 ghi 0.34 kl
GC 271 1073 ghi 0.33 l
ST X9905 1048 hi 0.38 a-f
GC 108 1041 hi 0.36 f-j
G/AP 1500 RR 965 i 0.37 b-h
-------------------------------------------------
Standard Deviation 88.7 0.012
CV 7.33 3.33
Planted 4/30/01
Harvested 10/18/01
Portageville Silt Loam Variety Trial
Yield Turnout
PM 1218 B/R 1115 a 0.38 abc
DPLX 99X35 1098 ab 0.39 a
DP 436 RR 1073 ab 0.35 d-g
FM 966 1062 ab 0.36 a-f
SG 105 1062 ab 0.37 a-f
PSC 355 1059 ab 0.36 b-g
SG 747 1051 abc 0.37 a-e
ST 4691B 1026 a-d 0.37 a-e
ST X9905 1015 a-d 0.36 a-f
ST 457 998 a-e 0.37 a-f
DP 451 B/R 998 a-e 0.34 fg
DPLX 00S04 976 a-e 0.36 b-g
STV 474 973 a-e 0.38 abc
SG 215 B/R 956 a-f 0.36 a-f
DES 816 954 a-f 0.34 efg
PM 1199 RR 940 a-f 0.36 a-f
SG 501 B/R 940 a-f 0.35 d-g
BXN 49B 937 a-f 0.38 ab
DPLX 99M03 934 a-f 0.36 a-f
SG 521 RR 920 a-g 0.36 a-f
FM 958 914 a-g 0.38 abc
ST 4892BR 914 a-g 0.38 abc
BXN 47 903 b-g 0.38 a-d
GC 271 853 c-g 0.31 h
G/AP 4600 RR 850 c-g 0.37 a-f
GC 106 834 d-g 0.37 a-f
DES 810 822 d-g 0.33 gh
G/AP 1500 RR 803 efg 0.34 efg
GC 108 803 efg 0.35 d-g
DP 491 795 efg 0.37 a-e
ST 4793R 756 fg 0.35 c-g
DP 555 BR 725 g 0.38 a-d
-------------------------------------------------
Standard Deviation 119.3 0.017
CV 12.69 4.79
Planted 5/8/01
Harvested 10/23/01
Portageville Clay Variety Trial
Yield Turnout
GC 106 1062 a 0.39 b-g
SG 215 B/R 1015 ab 0.39 b-g
BXN 49B 1012 ab 0.42 ab
ST 457 1004 abc 0.4 b-e
DP 436 RR 1004 abc 0.37 f-i
SG 747 987 abc 0.37 ghi
ST 4892BR 981 abc 0.41 a-d
DPLX 99X35 979 abc 0.43 a
DP 451 B/R 976 abc 0.36 ghi
ST 4691B 967 a-d 0.4 b-e
PM 1218 B/R 967 a-d 0.38 c-g
DPLX 99M03 942 a-e 0.38 c-g
SG 105 926 a-f 0.37 f-i
PSC 355 912 a-f 0.38 d-g
DPLX 00S04 901 a-f 0.38 c-g
SG 521 RR 901 a-f 0.37 e-h
SG 501 B/R 901 a-f 0.36 ghi
ST X9905 895 a-f 0.42 ab
G/AP 4600 RR 892 a-f 0.39 b-g
DES 816 887 a-f 0.36 ghi
FM 966 884 b-f 0.39 b-g
PM 1199 RR 884 b-f 0.39 b-g
STV 474 870 b-f 0.39 b-g
DES 810 861 b-f 0.35 hi
GC 108 861 b-f 0.37 e-h
FM 958 834 c-f 0.37 e-h
GC 271 834 c-f 0.34 i
DP 555 BR 831 c-f 0.43 a
DP 491 797 def 0.41 abc
ST 4793R 778 ef 0.4 b-f
BXN 47 775 ef 0.38 c-g
G/AP 1500 RR 761 f 0.39 c-g
-------------------------------------------------
Standard Deviation 101.6 0.017
CV 11.18 4.41
Planted 5/1/01
Harvested 10/22/01
Portageville Roundup Ready Variety Trial
Yield Turnout
SG 215 BR 1520 a 0.37 cde
DP 451 BR 1402 ab 0.36 e
ST 4892BR 1391 ab 0.39 a
SG 501 BR 1372 b 0.36 de
PM 1218 BR 1344 b 0.38 bcd
ST X9905 1335 bc 0.38 abc
SG 521 RR 1335 bc 0.38 b-e
PM 1199 RR 1327 bc 0.38 b-e
DP 436 RR 1263 bc 0.34 f
ST 4793R 1199 cd 0.39 ab
G/AP 1500 RR 1104 d 0.37 cde
-------------------------------------------------
Standard Deviation 87.4 0.009
CV 6.59 2.49
Planted 5/8/01
Harvested 10/22/01
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