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Stand count, crop vigor, canopy coverage, and seed cotton yield of cotton cultivars planted at the MRRS field in 2023. DAP refers to days after planting. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
Stand Count (#/ha)
Vigor (%)
Canopy Coverage (%)
Seed Cotton Yield (kg/ha)
14 DAP
28 DAP
DP 1646 B2XF
60,504
ab
67,302
70
bc
29
c
3,879
DP 2141NR B3XF
72,061
a
81,579
94
a
35
bc
3,982
PHY 340 W3FE
40,790
b
57,785
66
c
32
bc
3,646
PHY 332 W3FE
63,901
ab
64,578
83
ab
44
a
3,578
PHY 411 W3FE
66,622
ab
70,701
90
a
40
ab
3,938
PHY 443 W3FE
41,469
b
81,577
92
a
45
a
3,537
P-value
0.008
0.148
<0.001
<0.001
0.517
Soil population densities of reniform nematode (Rotylenchulus reniformis) at planting, mid-season, and harvest at the NERS field in 2022. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
R. reniformis / 500 cm3 soil
At Plant
Mid-Season
Harvest
DP 1646 B2XF
5,472
13,328
a
15,744
a
DP 2141NR B3XF
6,112
5,762
b
11,128
ab
PHY 332 W3FE
8,000
9,056
ab
9,088
ab
PHY 411 W3FE
8,832
8,096
b
6,688
b
PHY 443 W3FE
7,392
7,072
b
7,104
b
P-value
0.583
0.047
0.015
Soil population densities of reniform nematode (Rotylenchulus reniformis) at planting, mid-season, and harvest at the MRRS field in 2022. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
R. reniformis / 500 cm3 soil
At Plant
Mid-Season
Harvest
DP 1646 B2XF
20,384
23,232
a
47,616
a
DP 2141NR B3XF
17,152
13,200
b
27,776
ab
PHY 332 W3FE
17,408
12,416
b
22,016
ab
PHY 411 W3FE
25,952
14,184
b
14,144
b
PHY 443 W3FE
24,160
18,176
ab
26,304
ab
P-value
0.293
0.044
0.048
Stand count, crop vigor, canopy coverage, and seed cotton yield of cotton cultivars planted at the NERS field in 2023. DAP refers to days after planting. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
Stand Count (#/ha)
Vigor (%)
Canopy Coverage (%)
Seed Cotton Yield (kg/ha)
14 DAP
28 DAP
DP 1646 B2XF
48,947
61,865
81
ab
60
b
2,743
bc
DP 2141NR B3XF
61,865
54,385
75
ab
78
ab
2,484
c
PHY 340 W3FE
43,508
46,906
70
b
64
b
2,360
c
PHY 332 W3FE
55,744
70,022
98
a
87
a
4,265
a
PHY 411 W3FE
53,706
62,545
76
ab
71
ab
3,625
ab
PHY 443 W3FE
41,469
45,549
78
ab
74
ab
2,743
bc
P-value
0.435
0.071
0.022
0.031
<0.001
Stand count, crop vigor, canopy coverage, and seed cotton yield of cotton cultivars planted at the NERS field in 2022. DAP refers to days after planting. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
Stand Count (#/ha)
Vigor (%)
Canopy Coverage (%)
Seed Cotton Yield (kg/ha)
14 DAP
28 DAP
DP 1646 B2XF
92,457
67,302
68
c
22
b
3,192
DP 2141NR B3XF
108,091
95,175
75
bc
35
ab
2,899
PHY 332 W3FE
105,373
89,736
96
a
42
a
2,979
PHY 411 W3FE
99,255
89,057
88
ab
41
a
3,168
PHY 443 W3FE
105,373
98,575
95
a
41
a
3,256
P-value
0.714
0.164
<0.001
0.001
0.861
Stand count, crop vigor, canopy coverage, and seed cotton yield of cotton cultivars planted at the MRRS field in 2022. DAP refers to days after planting. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
Stand Count (#/ha)
Vigor (%)
Canopy Coverage (%)
Seed Cotton Yield (kg/ha)
14 DAP
28 DAP
DP 1646 B2XF
65,263
67,302
76
c
30
b
1,551
DP 2141NR B3XF
67,984
67,984
84
b
35
ab
1,469
PHY 332 W3FE
90,416
87,018
98
a
39
ab
1,534
PHY 411 W3FE
77,500
79,541
97
a
41
a
1,528
PHY 443 W3FE
64,583
60,504
91
ab
42
a
1,578
P-value
0.160
0.171
<0.001
0.022
0.993
Soil population densities of reniform nematode (Rotylenchulus reniformis) at planting, mid-season, and harvest at the MRRS field in 2023. Values sharing the same letter within a column do not differ significantly (P-value>0.05).
Cultivar
R. reniformis / 500 cm3 soil
At Plant
Mid-Season
Harvest
DP 1646 B2XF
4,480
8,576
95,740
a
DP 2141NR B3XF
5,504
4,160
66,896
ab
PHY 340 W3FE
4,096
6,016
87,984
a
PHY 332 W3FE
3,520
6,464
38,724
b
PHY 411 W3FE
4,672
3,200
45,696
b
PHY 443 W3FE
4,160
5,760
68,752
ab
P-value
0.924
0.786
0.048
Soil population densities of reniform nematode (Rotylenchulus reniformis) at planting, mid-season, and harvest at the NERS field in 2023. Values sharing the same letter within a column do not differ significantly (P-value>0.05).