Upland Cotton Regional Variety Trial Abstract

advertisement
Upland Cotton Regional Variety Trial
H. Moser, G. Hart, and L. Clark
University of Arizona Cooperative Extension
Abstract
Each year the University of Arizona conducts upland cotton variety tests to
evaluate the performance of a diverse set of experimental lines and
commercial varieties in Arizona. One such program is the Regional Variety
Test (RVT). In 1999, we evaluated a total of 59 varieties at one or more
locations in Arizona. These varieties were submitted to us for testing by 16
private seed companies and two public breeding programs. This report
presents the results of the trials conducted at Maricopa, Marana, and Safford.
Introduction
Variety selection is the first and perhaps most critical decision cotton producers make each year. A productive
variety provides a solid foundation for building a profitable cultural program. Conversely, even the best growers
find it difficult to coax profitable yields from a poor variety that is not adapted to the region.
Many sources of information are available to growers to help them choose a good variety. The best source of
information, of course, is personal experience with a particular variety on the farm, but given the large number of
varieties to choose from, it is impossible to try them all. Many growers, therefore, consider performance data from
variety trials that are conducted by seed companies and universities within the region of interest. University variety
trials provide growers with unbiased head-to-head comparisons of many varieties from different seed companies.
Data generated through these testing programs also are useful to seed companies and other segments of the cotton
industry.
The University of Arizona conducted four different upland cotton variety testing programs in 1999 – the Advanced
Strains Test, the Regional Variety Test, the Transgenic Comparison Test, and the State-wide Upland Cotton Variety
Test. The Regional Variety Test (RVT) is designed to evaluate a diverse group of commercial varieties in trials that
are conducted on research stations throughout the cotton producing regions of Arizona. The RVT is part of a beltwide program, National Cotton Variety test, which is conducted through a cooperative effort among the USDA and
various university programs.
The purpose of this report is to present our results from the 1999 Regional Variety Test.
Materials and Methods
We evaluated a total of 59 varieties in one or more trials in 1999. Sixteen private seed companies and two public
breeding programs entered varieties into the trials. Four varieties – Maxxa, NuCOTN 33B, Atlas, and SG747 are
national standards.
We planted trials at four University of Arizona research stations in 1999 – Yuma Valley Ag Center (YVAC),
Maricopa Ag Center (MAC), Marana Ag Center (MAR), and Safford Ag Center (SAC). Data from the YVAC trial
is not presented in this report because we observed an unusually high level of variation in the field and the resulting
data were variable and inconsistent.
The basic experimental procedures were similar for all of the trials. Plots at MAC and MAR were four rows wide
spaced 40 in. apart and 42 ft long and plots at SAC were two rows wide spaced 36 in apart and 38 ft long. Plots
were arranged in a randomized complete block design with five replications at MAC and MAR and four replications
This is part of the 2000 Arizona Cotton Report, The University of Arizona College of Agriculture, index at
http://ag.arizona.edu/pubs/crops/az1170/
at SAC. We used a high seeding rate of approximately 30 lbs/A and then thinned all plots to a final stand of three
plants per foot of row. We planted the MAC test on April 14 and the MAR and the SAC tests on April 23.
Emergence was outstanding in all three tests and our goal of 40,000 plants per acre was reached for almost all of the
plots in the test. Yield data from the few plots with unacceptable stands were discarded from the data set prior to
analysis.
All tests were grown using standard herbicide and fertility regimes. Aggressive IPM practices using chemical and
cultural methods were employed to control pink-bollworm, lygus, and whitefly.
The plots at Marana were visually evaluated for foliar symptoms of Verticillium wilt just prior to defoliation. Each
plot was given a score ranging from 0 for no visible symptoms to 9 for extensive foliar symptoms.
Prior to harvest, we hand picked a random 50-boll sample from three replications at each site. These samples were
weighed to determine average boll weight and then ginned on a 10-saw laboratory gin to determine lint and seed
percent. The fiber obtained from the boll samples was sent to ITC for quality analysis using HVI equipment. The
middle two rows of each plot were mechanically harvested and the weight of seedcotton was measured. Estimates
of lint and seed yield were calculated from the seedcotton yields using lint and seed percent values from the hand
picked boll samples collected before harvest. Plant height was measured from three replications of each test
immediately after harvest. The last irrigation applied to these plots was on Sept 2 at MAC, Aug 24 at MAR and
Aug 19 at SAC. The plots were harvested on Oct 29 at MAC, Nov 16 at MAR, and Nov 10 at SAC.
We conducted an analysis of variance on the data for each test and calculated protected Least Significant Difference
(LSD) values for all applicable traits.
Results and Discussion
Average lint yield of all 35 varieties tested at MAC was 1411 lb./A, ranging from a low of 811 lb./A for Maxxa to a
high of 1822 lb./A for PM1560BG (Table 1). Early season lygus infestations were heavy at times resulting in poor
fruit retention on the lower fruiting branches, vigorous plant growth (see plant heights in Table 2) and delayed
maturity. The top yielding group in this test included PM1560BG, STV474, and HCR9257. Both PM1560BG and
STV474 produced some of the highest micronaire values in the test, but micronaire of HCR9257 was below the
average of the test. Staple length and fiber strength were more than acceptable for most of the varieties.
Average lint yield of all 39 varieties tested at MAR was 1226 lb./A, ranging from a low of 909 lb./A for HCR9220
to a high of 1520 lb./A for FiberMax989 (Table 3). Verticillium wilt was fairly heavy and wilt tolerant varieties
tended to produce the higher yields in this test (Table 4). The top yielding group in this test included FiberMax989,
HCR9257, HS12, DP675, H9903, and AP6101. HS12 produced the overall best quality fiber of the top yielding
group. Micronaire values in this tests averaged 5.0, with a range from 4.3 to 5.6. The majority of the varieties in
this test, however, produced micronaire values within a fairly narrow range of 4.8 to 5.1.
Average lint yield of all 42 varieties tested at SAC was 1168 lb./A, ranging from a low of 792 lb./A for Atlas to a
high of 1517 lb./A for DP655BRR (Table 5). DP655BRR and DP458BRR both produced exceptional yields in this
test. Pink-bollworm infestations were heavy in this trial, and even though we used aggressive chemical control
measures, lint yields of varieties not containing the Bollgard gene were probably compromised. The highest
yielding conventional varieties were Fiber Max 975, HS 12, and GC303. HS12 and DP655BRR produced the
overall best fiber quality of the top yielding varieties in the test.
In general, 1999 was a good year for cotton production in Arizona. Although cold temperatures in late March and
early April affected some of the commercial crop, these tests were planted in good weather and did not experience
any appreciable challenges in the spring. Day temperatures were mild in 1999 for the most part, although there may
have been some low-level heat stress at MAC due to higher than average night temperatures and an extended
monsoon season.
Acknowledgements
We wish to thank the many seed companies for their cooperation and partial support of the variety testing program
at the University of Arizona. The land and resources provided by the University of Arizona Agricultural centers at
Yuma, Maricopa, Marana, and Safford are also greatly appreciated.
Table 1. Regional variety test at Maricopa Ag Center (MAC); lint yield and fiber properties
Lint
Fiber
Unif.
Fiber
ElongVariety
yield
Mic
length
ratio strength
ation
lbs/A
in
g/tex
PM1560BG
1822 *
5.7
1.11
83.6
29.6
5.7
STV474
1777 *
5.7
1.10
82.8
28.7
5.1
HCR9257
1754 *
5.1
1.11
82.7
28.5
5.4
PM1560BG/RR
1716
4.9
1.14
83.0
29.8
6.1
AP7115
1707
5.3
1.10
82.5
28.0
5.6
SG747
1663
5.7
1.15
84.4
27.0
6.7
DP422BRR
1626
5.1
1.14
83.3
27.6
6.5
NuCOTN33B
1555
5.4
1.12
82.3
29.8
5.8
SG125
1544
5.3
1.13
83.6
27.1
6.2
PSC355
1535
5.2
1.11
83.2
29.2
6.8
PM1440
1525
5.4
1.14
82.3
29.2
5.0
PSC413
1520
5.2
1.15
83.7
29.7
6.5
DP451BRR
1495
5.5
1.12
83.2
27.2
5.2
HCR7126
1487
5.1
1.16
82.1
30.9
5.8
SG821
1475
5.3
1.15
84.0
28.6
6.6
SG105
1473
5.5
1.18
84.8
29.5
6.1
GC120
1459
5.0
1.09
83.0
27.7
6.8
HCR7114-46
1414
5.0
1.09
82.1
26.1
6.4
HCR9240
1403
4.9
1.18
82.7
30.3
6.3
PSC952
1400
5.3
1.10
83.0
28.1
6.2
GC251
1390
5.6
1.12
83.5
29.8
6.1
Top-Pick
1387
4.9
1.19
84.2
30.3
6.4
HCR9220
1353
5.2
1.09
83.1
27.8
5.6
AP6101
1301
5.1
1.19
84.0
31.1
6.1
Terra292
1295
5.3
1.15
82.9
28.0
6.0
DP5415
1283
5.1
1.16
83.2
30.2
6.4
DP675
1283
4.8
1.16
83.2
32.0
6.6
Atlas
1226
5.1
1.13
83.4
30.2
6.2
SG248
1209
5.1
1.21
83.6
31.6
5.6
GA161
1202
5.1
1.19
83.1
31.3
5.8
FiberMax989
1159
4.9
1.16
83.1
32.1
5.0
GC303
1134
5.1
1.18
83.9
30.0
6.4
HS12
1081
5.0
1.18
82.7
31.8
5.5
PMX2609
1077
5.6
1.10
83.9
30.4
5.7
Maxxa
811
4.2
1.17
84.0
33.1
6.0
MEAN
1411
5.2
1.14
83.3
29.4
6.0
LSD
85
0.2
0.03
ns
1.2
0.5
CV
7
4.0
2.05
1.2
3.4
6.9
*= not significantly different from top yielding line
Rd
+b
80.9
78.1
82.3
80.6
82.1
78.9
82.7
82.1
78.9
79.3
80.3
78.7
82.0
81.1
80.7
80.8
81.3
82.5
80.9
79.6
79.9
80.5
81.9
81.8
82.1
82.7
80.8
79.7
80.8
80.4
80.5
81.8
81.5
78.1
81.2
80.8
0.9
0.9
8.1
9.0
7.4
8.1
7.9
8.6
7.6
7.8
8.6
8.6
8.4
8.5
7.7
7.7
8.7
8.0
8.2
8.0
8.4
8.4
8.2
8.2
7.8
7.7
7.7
7.5
8.3
8.0
7.8
8.4
8.0
7.6
8.0
8.7
8.2
8.1
0.2
2.2
Table 2. Regional variety test at Maricopa Ag Center (MAC); agronomic characteristics.
Seed cotton
Seed
Lint
Plant
Boll
Variety
yield
yield
percent
height
weight
lbs/A
lbs/A
%
m
g
PM1560BG
4669
2843
39.0
1.20
5.3
4392
2583
40.5
1.33
4.8
STV474
HCR9257
4417
2624
39.7
1.31
5.0
4460
2730
38.5
1.43
5.2
PM1560BG/RR
AP7115
4305
2564
39.6
1.25
5.4
4314
2633
38.5
1.24
5.5
SG747
DP422BRR
4466
2834
36.4
1.29
5.3
4217
2643
36.9
1.43
5.3
NuCOTN33B
SG125
4051
2495
38.1
1.25
5.1
PSC355
4064
2509
37.8
1.37
4.8
PM1440
4014
2469
38.0
1.28
5.3
PSC413
4011
2491
37.7
1.23
4.7
DP451BRR
4354
2802
34.3
1.27
5.4
HCR7126
3843
2327
38.7
1.34
5.0
SG821
3833
2338
38.5
1.32
5.5
SG105
3905
2406
37.7
1.26
5.2
GC120
3799
2301
38.4
1.32
5.3
HCR7114-46
3868
2424
36.6
1.39
5.3
HCR9240
3652
2238
38.4
1.35
5.6
PSC952
3624
2205
38.6
1.44
5.0
GC251
3789
2372
36.7
1.30
5.2
Top-Pick
3961
2522
35.0
1.33
5.3
HCR9220
3497
2109
38.7
1.23
5.0
AP6101
3578
2249
36.4
1.43
5.2
Terra292
3899
2566
33.2
1.24
5.7
DP5415
3359
2041
38.2
1.50
4.8
DP675
3493
2196
36.7
1.55
5.8
Atlas
3593
2367
34.1
1.34
5.6
SG248
3219
1996
37.6
1.66
5.1
GA161
3256
2029
36.9
1.53
6.0
FiberMax989
3110
1931
37.5
1.45
5.7
GC303
3050
1898
37.2
1.67
5.0
HS12
3000
1904
36.0
1.67
5.4
PMX2609
2985
1883
36.1
1.45
6.2
Maxxa
2134
1308
38.0
1.49
5.8
MEAN
3772
2337
37.3
1.37
5.3
LSD
229
142
1.0
0.09
0.4
CV
7
7
2.4
5.63
6.2
Table 3. Regional variety test at Marana Ag Center; lint yield and fiber properties.
Lint
Fiber
Unif.
Fiber ElongVariety
yield
Mic
length
ratio strength
ation
lbs/A
in
g/tex
FiberMax989
1520
*
5.0
1.16
83.9
31.0
5.1
HCR9257
1512
*
4.9
1.08
83.5
26.9
5.8
HS12
1419
*
4.8
1.16
81.9
31.2
5.7
DP675
1391
*
5.0
1.13
83.7
30.0
6.8
BR-H9903
1378
*
5.2
1.14
82.7
28.9
6.3
AP6101
1366
*
5.3
1.16
83.0
29.5
6.2
DP422BRR
1358
4.8
1.08
82.0
24.6
6.9
PSC413
1348
4.8
1.10
81.4
27.2
6.9
PM1560BG/RR
1338
4.6
1.12
82.7
26.9
5.3
HCR9240
1330
4.9
1.17
83.1
28.7
6.4
Maxxa
1315
4.3
1.15
83.5
31.4
5.4
GC303
1306
4.8
1.15
82.5
29.1
6.5
1302
5.1
1.13
82.8
28.8
6.1
SS9815
SG125
1299
4.9
1.11
83.2
25.6
6.7
Top-Pick
1295
4.8
1.15
82.0
27.9
6.7
PM1440
1288
4.9
1.13
84.4
27.9
5.6
1274
5.1
1.08
81.1
26.3
5.1
AP7115
HCR7114-46
1273
5.0
1.07
81.4
25.0
6.2
NuCOTN33B
1266
4.9
1.12
82.6
27.9
6.3
HCR7126
1256
4.9
1.15
82.9
28.5
6.2
1246
5.1
1.09
82.9
27.2
6.9
PSC355
SG105
1232
5.1
1.12
83.5
27.5
6.5
STV474
1231
5.1
1.08
81.7
26.5
5.4
GA161
1223
4.8
1.16
83.6
31.2
5.7
1203
5.3
1.09
81.8
25.4
6.8
SG747
BR-H9904
1174
5.5
1.12
83.3
28.5
5.3
PSC952
1169
5.1
1.06
81.4
25.8
6.1
SG248
1165
5.1
1.17
82.4
29.6
5.7
1155
4.8
1.13
82.9
25.9
5.7
DP451BRR
GC120
1151
4.6
1.09
82.3
25.1
6.2
BR-H9902
1141
5.6
1.10
84.5
29.0
6.2
Terra292
1115
5.0
1.09
81.3
24.8
5.9
PM1560BG
1110
4.9
1.09
83.6
28.1
6.1
GC251
1107
5.5
1.12
84.9
28.8
6.0
Atlas
1087
5.0
1.07
83.3
28.0
5.8
BR-H9901
1077
5.0
1.14
82.9
29.4
6.1
SS9806
1008
4.9
1.09
82.8
26.1
5.2
BR-H9906
994
5.2
1.13
82.7
27.7
6.1
HCR9220
909
4.9
1.07
80.9
25.0
5.1
MEAN
1226
5.0
1.12
82.8
27.7
6.0
LSD
156
0.3
0.03
1.2
1.0
0.4
CV
14
4.4
2.04
1.2
3.1
6.0
* = not significnatly different from top yielding line
Rd
+b
80.4
82.4
81.4
80.3
82.1
81.4
81.5
79.0
80.8
80.0
81.5
82.1
79.8
78.8
81.1
80.9
81.7
82.3
81.3
81.9
79.2
81.0
78.6
80.2
78.3
79.9
79.4
80.9
82.2
80.7
79.6
81.2
80.7
80.0
80.6
79.8
80.1
81.3
82.1
80.7
0.8
0.9
8.2
7.6
8.0
8.3
7.7
7.9
8.0
8.7
8.2
8.6
8.1
7.8
8.4
8.6
8.4
8.2
7.8
7.9
7.8
7.9
8.8
8.1
9.0
8.2
9.1
8.3
8.7
7.8
7.7
8.2
8.6
7.8
8.2
8.2
8.0
8.2
8.5
8.1
7.7
8.2
0.2
2.2
Table 4. Regional variety test at Marana Ag Center; agronomic characteristics.
Seed cotton
Seed
Lint
Plant
Variety
yield
yield
percent
height
lbs/A
lbs/A
%
Boll
weight
m
g
FiberMax989
3898
2357
39.0
1.32
HCR9257
3742
2201
40.4
1.32
HS12
3795
2358
37.4
1.47
DP675
3555
2148
39.2
1.38
BR-H9903
3537
2145
38.9
1.30
AP6101
3587
2202
38.1
1.33
DP422BRR
3636
2262
37.4
1.22
PSC413
3657
2288
36.9
1.08
PM1560BG/RR
3427
2032
39.0
1.35
HCR9240
3307
1962
40.2
1.30
Maxxa
3243
1905
40.6
1.17
GC303
3385
2068
38.6
1.50
SS9815
3367
2031
38.7
1.42
SG125
3300
1956
39.4
1.12
3478
2155
37.3
1.22
Top-Pick
PM1440
3328
2013
38.7
1.23
AP7115
3165
1865
40.3
1.05
HCR7114-46
3229
1938
39.4
1.20
3381
2084
37.4
1.28
NuCOTN33B
HCR7126
3123
1863
40.2
1.28
PSC355
3187
1930
39.1
1.20
SG105
3162
1886
38.9
1.25
3031
1753
40.6
1.10
STV474
GA161
3190
1942
38.3
1.30
SG747
2978
1758
40.4
1.10
BR-H9904
3211
2007
36.6
1.08
2964
1778
39.5
1.25
PSC952
SG248
3024
1827
38.5
1.47
DP451BRR
3300
2120
35.0
1.13
GC120
3006
1847
38.3
1.23
BR-H9902
3123
1958
36.5
1.17
Terra292
3204
2078
34.8
1.15
PM1560BG
2857
1723
38.8
1.07
GC251
2995
1876
36.9
1.03
Atlas
3067
1966
35.4
1.30
BR-H9901
2875
1795
37.4
1.17
SS9806
2645
1616
38.1
1.12
BR-H9906
2963
1949
33.6
1.15
HCR9220
2305
1390
39.5
1.03
MEAN
3204
1957
38.2
1.23
LSD
411
252
1.0
0.10
CV
14
14
2.2
7.40
1
Verticillium wilt rating at cutout 0 = no symptoms, 9 = extensive symptoms
5.8
5.3
5.3
5.5
5.1
4.9
5.3
5.1
5.3
5.5
5.7
5.0
5.3
5.1
5.2
5.6
4.9
5.5
5.0
5.1
4.7
5.3
4.9
5.6
5.1
5.4
4.8
5.1
5.0
5.1
5.5
5.4
4.6
5.1
5.6
4.8
5.2
5.8
5.2
5.2
0.3
5.0
Vert. wilt
ratings1
1.8
4.2
3.4
3.2
3.0
4.0
4.6
4.2
6.4
3.4
1.0
3.6
4.4
5.4
3.4
4.8
4.2
3.6
6.0
5.4
4.6
3.6
6.8
5.0
6.6
3.6
5.2
4.0
4.6
5.4
4.8
3.6
7.0
4.0
3.2
6.2
5.2
5.0
6.8
4.5
0.8
19.3
Table 5. Regional variety test at Safford Ag Center (SAC); lint yield and fiber properties.
Lint
Fiber
Unif.
Fiber ElongVariety
yield
Mic
length
ratio Strength
ation
lbs/A
in
g/tex
DP655BRR
1517 *
4.2
1.12
81.2
29.6
5.7
DP458BRR
1467 *
4.5
1.11
82.2
28.5
6.5
FiberMax975
1364
4.6
1.13
80.8
29.8
4.9
PM1560BG/RR
1354
4.4
1.11
82.4
27.2
6.0
HS12
1337
4.4
1.16
81.8
29.8
5.8
1331
4.9
1.13
82.7
29.5
6.3
GC303
1517-99
1326
4.1
1.15
83.4
31.4
6.5
MAC95
1323
4.6
1.12
82.3
28.5
5.2
FiberMax989
1307
4.4
1.14
82.8
30.7
5.7
1305
4.8
1.08
81.8
27.3
5.6
HCR9257
195-208
1281
3.5
1.28
83.8
35.2
7.2
STV474RR
1274
4.8
1.06
82.3
26.1
5.8
HCR9240
1265
4.5
1.13
82.4
28.2
6.3
DP90
1258
4.5
1.14
82.4
29.4
6.1
AP4103
1250
4.7
1.11
81.1
27.9
5.4
SG747
1241
4.8
1.11
82.2
25.8
7.1
SG105
1231
4.9
1.11
82.8
27.7
6.6
HCR7126
1220
4.3
1.14
81.2
28.7
6.6
HCR7114-46
1219
4.8
1.07
81.2
24.5
6.5
PSC355
1194
4.7
1.11
83.5
27.4
7.3
Top-Pick
1171
4.6
1.13
82.2
26.5
6.6
AP6101
1167
4.6
1.16
80.9
29.8
6.4
PM1560BG
1157
4.7
1.10
82.6
27.8
6.6
151-208
1154
3.9
1.27
84.9
37.4
6.9
GC251
1139
5.5
1.09
83.8
27.9
5.4
PM1440
1134
4.9
1.10
82.5
27.3
5.6
PSC413
1133
4.7
1.14
83.1
27.8
6.8
PSC952
1112
4.9
1.07
82.0
26.1
6.5
NuCOTN33B
1091
4.7
1.13
81.9
28.0
6.4
1517-91
1050
4.5
1.15
83.9
31.2
5.2
FiberMax832
1025
4.2
1.16
83.7
31.0
5.7
PMX2609
1023
4.9
1.08
82.0
27.7
6.0
AP7115
1017
4.6
1.05
80.7
25.5
5.7
GC120
1008
4.5
1.07
82.8
26.3
6.8
1517-95
996
4.3
1.17
84.7
31.2
5.7
W1218
991
3.9
1.20
82.0
31.2
6.4
175-208
985
3.9
1.23
83.9
35.9
7.0
Terra292
971
4.5
1.14
83.2
26.5
6.6
GA161
968
4.3
1.17
84.2
30.5
6.2
HCR9220
962
4.1
1.09
81.7
25.7
6.3
Maxxa
934
4.1
1.13
83.2
31.1
5.4
Atlas
792
4.6
1.08
82.6
28.8
5.9
MEAN
1168
4.5
1.13
82.5
28.8
6.2
LSD
114
0.3
0.03
1.2
1.3
0.6
CV
10
6.0
2.66
1.2
3.9
8.0
* = not significnatly different from top yielding line.
Rd
+b
80.5
82.3
82.5
81.3
81.4
81.9
79.0
80.1
81.1
82.1
73.8
79.5
80.4
80.3
80.8
79.6
80.6
81.3
82.0
79.5
81.0
80.5
81.1
75.4
79.8
81.3
80.2
80.1
82.2
79.2
81.9
79.5
81.6
80.9
77.4
79.6
75.0
81.2
80.6
82.2
80.2
78.9
80.3
1.0
1.1
8.8
8.5
8.0
9.0
8.7
8.6
9.0
8.9
8.6
8.3
10.9
9.7
9.1
9.0
8.7
9.3
8.8
8.4
8.7
9.5
8.9
8.7
8.5
10.3
9.0
9.0
9.2
9.6
8.5
8.8
8.3
9.1
8.5
8.8
8.7
9.0
10.3
8.7
8.9
8.3
8.7
8.5
8.9
0.2
2.4
Table 6. Regional variety test at Safford Ag Center (SAC); agronomic characteristics.
Seed cotton
Seed
Lint
Plant
Variety
yield
yield
percent
height
lbs/A
lbs/A
%
m
DP655BRR
3921
2414
38.7
1.06
DP458BRR
3631
2164
40.4
0.81
FiberMax975
3251
1859
42.0
0.89
PM1560BG/RR
3367
1991
40.2
0.86
HS12
3489
2138
38.3
1.02
GC303
3333
1983
39.9
0.79
1517-99
3541
2165
37.5
1.04
MAC95
3476
2128
38.0
0.92
FiberMax989
3195
1883
40.9
0.83
HCR9257
3161
1842
41.3
0.77
195-208
3631
2344
35.3
1.19
STV474RR
3014
1736
42.2
0.83
HCR9240
3111
1837
40.7
0.84
DP90
3215
1953
39.1
0.92
AP4103
3183
1906
39.3
0.91
SG747
3078
1817
40.3
0.89
SG105
3079
1826
40.0
0.90
HCR7126
3024
1781
40.3
0.84
HCR7114-46
3093
1870
39.4
0.75
PSC355
3071
1862
38.9
0.85
Top-Pick
3025
1837
38.7
0.80
AP6101
3004
1828
38.9
0.86
PM1560BG
2916
1755
39.7
0.82
151-208
3404
2221
33.8
0.90
GC251
3060
1897
37.2
0.80
PM1440
2798
1666
40.5
0.79
PSC413
2924
1791
38.7
0.76
PSC952
2728
1608
40.8
0.92
NuCOTN33B
2805
1698
38.9
0.76
1517-91
2891
1828
36.2
0.95
FiberMax832
2631
1587
38.9
0.88
PMX2609
2676
1646
38.2
0.93
AP7115
2495
1466
40.8
0.76
GC120
2553
1541
39.5
0.85
1517-95
2749
1727
36.3
1.06
W1218
2622
1632
37.8
0.93
175-208
3034
2037
32.4
1.02
Terra292
2780
1785
34.9
0.87
GA161
2504
1519
38.7
0.84
HCR9220
2510
1533
38.3
0.79
Maxxa
2323
1367
40.1
0.79
Atlas
2223
1409
35.7
0.78
MEAN
3012
1830
38.7
0.87
LSD
295
179
1.0
0.09
CV
10
10
2.2
10.05
Boll
weight
g
5.1
4.8
4.5
5.3
4.8
4.6
5.4
4.6
5.3
5.1
4.2
5.3
4.9
4.9
5.2
4.9
5.1
4.5
5.0
4.5
5.1
4.8
4.8
4.6
5.2
4.8
4.7
4.7
4.7
5.3
5.4
5.4
4.8
4.7
5.8
4.9
4.1
4.9
4.9
4.9
5.8
5.3
4.9
0.3
5.5
Download