Agronomic Behaviour and Chemical Composition of Three Varieties of Pennisetum sp in the Peruvian Tropics
Table 2
Chemical composition of three varieties of Pennisetum sp according to cutting age and interaction variety × cutting age1.
Variables
N (%)
P (%)
K (%)
Ca (%)⸸
Mg (%)
Fe (mg/kg)
Cu (mg/kg)⸸
Zn (mg/kg)⸸
Mn (mg/kg)
Variety
Maralfalfa
1.72 ± 0.19
0.12 ± 0.02
1.47 ± 0.13
0.53 ± 0.02
0.22 ± 0.01b
191.0 ± 28.05
10.67 ± 1.02
12.67 ± 4.27
140.00 ± 11.96
King grass
1.62 ± 0.16
0.13 ± 0.01
1.70 ± 0.15
0.55 ± 0.03
0.19 ± 0.01b
194.50 ± 33.96
11.00 ± 0.72
10.33 ± 3.26
121.67 ± 12.87
Cameroon
1.81 ± 0.10
0.15 ± 0.01
1.73 ± 0.15
0.64 ± 0.02
0.27 ± 0.02a
241.19 ± 46.29
17.00 ± 4.90
10.83 ± 3.34
154.33 ± 21.44
value
0.41
0.16
0.24
0.103
<0.001
0.32
0.204
0.893
0.32
Cutting age
8th week
2.38 ± 0.11a
0.18 ± 0.01a
1.76 ± 0.13
0.70 ± 0.03a
0.21 ± 0.01b
253.83 ± 27.71a
14.00 ± 0.60
3.83 ± 0.97b
145.50 ± 15.55
12th week
1.44 ± 0.10b
0.10 ± 0.01c
1.64 ± 0.13
0.49 ± 0.01c
0.20 ± 0.02b
291.33 ± 33.19a
9.00 ± 0.87
27.33 ± 1.91a
123.50 ± 9.34
16th week
1.32 ± 0.08b
0.13 ± 0.01b
1.50 ± 0.16
0.53 ± 0.03b
0.26 ± 0.02a
81.52 ± 8.98b
15.67 ± 4.96
2.67 ± 0.67b
147.0021.36
value
<0.001
<0.001
0.28
<0.001
0.002
<0.001
0.26
<0.001
0.5
Block
B1
1.52 ± 0.17
0.15 ± 0.02a
1.85 ± 0.17a
0.58 ± 0.05
0.20 ± 0.01
212.92 ± 46.74
16.89 ± 6.77
10.89 ± 4.04
120.89 ± 19.88
B2
1.70 ± 0.16
0.13 ± 0.02ab
1.21 ± 0.08b
0.58 ± 0.05
0.25 ± 0.02
256.67 ± 51.24
11.11 ± 1.06
8.67 ± 3.38
172.22 ± 19.79
B3
1.88 ± 0.14
0.15 ± 0.01a
1.60 ± 0.09a
0.57 ± 0.04
0.24 ± 0.02
187.78 ± 26.93
11.11 ± 1.06
11.56 ± 4.89
144.67 ± 11.35
B4
1.77 ± 0.29
0.11 ± 0.01b
1.87 ± 0.20a
0.57 ± 0.05
0.21 ± 0.03
178.22 ± 41.84
12.44 ± 0.60
14.00 ± 4.51
116.89 ± 18.41
value
0.18
0.022
0.010
0.99
0.069
0.26
0.61
0.85
0.14
Varietycutting age
Maralfalfa8th week
2.46 ± 0.52
0.18 ± 0.05
1.76 ± 0.39
0.62 ± 0.04
0.21 ± 0.06
210.00 ± 0.05
14.00 ± 8.08
4.00 ± 2.31
124.00 ± 48.74
Maralfalfa12th week
1.54 ± 0.37
0.10 ± 0.02
1.59 ± 0.29
0.51 ± 0.03
0.20 ± 0.05
268.50 ± 0.07
7.00 ± 4.04
32.00 ± 3.40
121.00 ± 30.53
Maralfalfa16th week
1.18 ± 0.25
0.10 ± 0.05
1.06 ± 0.41
0.46 ± 0.02
0.24 ± 0.03
94.50 ± 0.04
11.00 ± 6.35
2.00 ± 0.01
175.00 ± 23.12
King grass8th week
2.22 ± 0.40
0.16 ± 0.02
1.76 ± 0.65
0.68 ± 0.07
0.18 ± 0.13
243.00 ± 0.02
13.00 ± 7.51
4.00 ± 8.53
124.00 ± 46.50
King grass12th week
1.27 ± 0.28
0.10 ± 0.02
1.83 ± 0.44
0.48 ± 0.03
0.16 ± 0.05
261.50 ± 0.02
10.00 ± 5.57
25.00 ± 2.40
120.00 ± 43.70
King grass16th week
1.37 ± 0.37
0.13 ± 0.03
1.51 ± 0.50
0.50 ± 0.02
0.24 ± 0.03
79.00 ± 0.06
10.00 ± 5.57
2.00 ± 0.01
121.00 ± 56.63
Cameroon8th week
2.47 ± 0.26
0.18 ± 0.04
1.76 ± 0.45
0.81 ± 0.05
0.26 ± 0.08
308.51 ± 0.01
15.00 ± 8.66
3.50 ± 1.73
188.50 ± 49.08
Cameroon12th week
1.53 ± 0.41
0.10 ± 0.02
1.51 ± 0.59
0.48 ± 0.01
0.24 ± 0.03
344.00 ± 0.04
10.00 ± 5.77
25.00 ± 4.67
129.50 ± 30.52
Cameroon16th week
1.41 ± 0.26
0.16 ± 0.05
1.92 ± 0.52
0.64 ± 0.08
0.32 ± 0.14
71.06 ± 0.07
26.00 ± 15.01
4.00 ± 2.31
145.00 ± 119.97
value
0.69
0.22
0.13
0.08
0.76
0.65
0.47
0.27
0.46
1Mean values ± standard error of the mean are presented. Different superscript letters in columns (a, b, c) represent significant differences at the < 0.05 level (), at the < 0.01 level (), or at the < 0.001 level () by multiple comparison with Duncan’s test (N, P, K, Mg, Fe, and Mn) and ⸸Kruskal–Wallis (Ca, Cu, and Zn).
