Brachiaria ruziziensis Responses to Different Fertilization Doses and to the Attack of Mahanarva spectabilis (Hemiptera: Cercopidae) Nymphs and Adults
Table 2
Cellulose, lignin, neutral detergent fiber (NDF), acid detergent fiber (ADF), in vitro dry matter digestibility (IVDMD), and crude protein (CP) contents in Brachiaria ruziziensis plants, cultivated under recommended (R), half of recommended (H), and control (C) fertilization and exposed to different Mahanarva spectabilis densities.
Fertilization doses
Nymphs density
P
F
Adults density
P
F
0
30
0
10
Cellulose (%)
C
40.0 ± 2.2
49.6 ± 2.3
0.015
6.352
43.4 ± 3.1
47.7 ± 1.2
0.206
1.674
H
45.5 ± 3.4
49.3 ± 3.5
0.304
1.083
44.1 ± 2.6
44.7 ± 1.3
0.785
0.076
R
45.6 ± 1.8
46.4 ± 1.6
0.818
0.054
47.6 ± 2.6
41.9 ± 2.7
0.035
4.88
P
0.233
0.648
0.320
0.095
F
1.448
0.434
1.171
2.526
Lignin (%)
C
5.7 ± 0.3
5.5 ± 0.2
0.508
0.445
6.3 ± 0.3
6.1 ± 0.2
0.415
0.683
H
5.8 ± 0.2
5.7 ± 0.3
0.700
0.15
6.3 ± 0.1
6.0 ± 0.2
0.309
1.072
R
6.1 ± 0.3
6.3 ± 0.2
0.579
0.311
6.5 ± 0.3
6.5 ± 0.3
0.983
0.000
P
0.285
0.023
0.601
0.118
F
1.277
4.064
0.512
2.272
DNF (%)
C
71.2 ± 0.9
73.6 ± 0.9
0.070
3.447
77.0 ± 0.7
75.9 ± 0.4
0.15
2.172
H
73.7 ± 0.9
75.8 ± 1.1
0.111
2.641
75.9 ± 0.5
75.0 ± 0.4
0.264
1.292
R
72.4 ± 1.0
75.8 ± 0.9
0.015
6.356
76.2 ± 1.0
75.9 ± 0.5
0.721
0.130
P
0.152
0.205
0.32
0.401
F
1.949
1.624
1.168
0.930
DAF (%)
C
42.1 ± 0.9
43.8 ± 0.9
0.139
2.272
45.9 ± 0.9
44.9 ± 0.6
0.363
0.854
H
44.7 ± 0.7
45.4 ± 0.6
0.499
0.463
45.2 ± 0.5
44.1 ± 0.3
0.32
1.027
R
43.7 ± 0.9
45.6 ± 0.8
0.093
2.953
45.9 ± 1.2
45.0 ± 0.9
0.419
0.67
P
0.063
0.213
0.771
0.671
F
2.915
1.586
0.262
0.400
IVDMD
C
55.8 ± 1.3
52.1 ± 1.2
0.053
3.948
50.8 ± 1.0
51.1 ± 0.7
0.848
0.037
H
54.7 ± 1.4
51.8 ± 1.1
0.129
2.396
51.2 ± 1.0
52.2 ± 0.5
0.439
0.615
R
57.4 ± 1.5
52.3 ± 1.3
0.080
7.760
59.8 ± 1.3
50.0 ± 1.0
0.546
0.373
P
0.331
0.970
0.963
0.266
F
1.123
0.032
0.039
1.366
CP (%)
C
5.6 ± 0.3
4.9 ± 0.2
0.255
1.331
4.1 ± 0.1
3.8 ± 0.2
0.254
1.354
H
5.5 ± 0.2
4.7 ± 0.5
0.152
2.13
4.0 ± 0.2
3.9 ± 0.2
0.644
0.218
R
6.6 ± 0.7
4.4 ± 0.3
0.060
6.493
3.6 ± 0.2
3.7 ± 0.2
0.801
0.065
P
0.096
0.602
0.143
0.683
F
2.444
0.508
2.051
0.383
P and F are values of variance analysis followed by a Tukey test.
