|
Table 15 : Productivity of some indigenous and exotic grasses: sum of 28 days cutting during the growing season in dry matter ton per hectare. |
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|
Species |
Ecotypes or cultivars ORSTOM |
Dry matter (t/ha) |
Means |
Standard deviation |
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|
Years |
||||||||||
|
1980 |
1981 |
1982 |
1983 |
1984 |
1985 |
1986 |
||||
|
Indigenous species |
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|
Andropogon gayanus |
Wakwa |
01.02 |
01.36 |
02.37 |
03.82 |
03.31 |
02.98 |
02.74 |
02.51 |
01.01 |
|
Andropogon gayanus |
Faro |
02.45 |
02.11 |
03.54 |
03.70 |
01.08 |
03.46 |
02.81 |
02.74 |
0.94 |
|
Brachiaria brizantha |
03.01 |
04.10 |
05.91 |
06.18 |
10.62 |
08.52 |
06.50 |
06.41 |
02.56 |
|
|
Hyparrhenia rufa |
02.39 |
03.68 |
08.86 |
06.38 |
08.61 |
08.55 |
07.10 |
06.51 |
02.56 |
|
|
Melinis tenuissima |
06.94 |
06.04 |
07.72 |
11.21 |
07.28 |
06.98 |
06.98 |
06.80 |
07.57 |
01.68 |
|
Exotic species |
||||||||||
|
Pennisetum purpureum |
Kizozi |
01.43 |
03.59 |
04.12 |
11.95 |
05.64 |
03.27 |
04.69 |
04.96 |
03.35 |
|
Tripsacum laxum |
01.08 |
05.09 |
04.63 |
08.75 |
07.28 |
05.75 |
03.12 |
05.10 |
02.54 |
|
|
Brachiaria ruziziensis |
05.95 |
06.11 |
14.43 |
11.37 |
11.47 |
06.64 |
07.93 |
09.13 |
03.30 |
|
|
Panicum maximum |
Bamenda |
03.32 |
03.71 |
08.20 |
11.53 |
09.32 |
07.26 |
06.20 |
07.08 |
02.95 |
|
Panicum maximum |
Bambui |
03.28 |
03.62 |
06.04 |
10.81 |
12.40 |
06.22 |
07.92 |
07.19 |
03.44 |
|
Panicum maximum |
Makueni |
02.66 |
04.20 |
02.27 |
15.19 |
12.00 |
06.03 |
10.61 |
07.57 |
05.05 |
|
Panicum maximum |
Shika |
02.74 |
03.71 |
07.88 |
11.13 |
07.96 |
05.06 |
07.07 |
06.51 |
02.88 |
|
Panicum maximum |
trichoglume |
03.03 |
03.66 |
07.88 |
10.58 |
06.45 |
- |
- |
- |
- |
|
Panicum maximum |
Colaniao |
03.72 |
03.10 |
07.60 |
10.24 |
07.81 |
06.47 |
08.04 |
06.71 |
02.52 |
|
Panicum maximum |
Killo |
05.05 |
04.58 |
08.59 |
12.30 |
11.99 |
07.54 |
08.12 |
08.31 |
03.02 |
|
Panicum maximum |
K 187 a |
03.31 |
04.08 |
07.70 |
15.83 |
08.53 |
07.81 |
10.31 |
08.22 |
04.16 |
|
Panicum maximum |
K 187 b |
02.32 |
03.77 |
07.53 |
12.14 |
09.86 |
06.28 |
07.64 |
07.08 |
03.37 |
|
Panicum maximum |
K 184 |
02.75 |
03.41 |
04.84 |
14.89 |
10.62 |
06.89 |
08.00 |
07.34 |
04.30 |
|
Panicum maximum |
K 160 |
03.20 |
03.40 |
07.51 |
14.38 |
09.31 |
- |
- |
- |
- |
|
Panicum maximum |
K 89 a |
05.07 |
03.41 |
04.84 |
05.61 |
06.41 |
05.46 |
05.60 |
05.20 |
0.93 |
|
Panicum maximum |
K 89 b |
03.03 |
02.93 |
06.82 |
11.78 |
08.26 |
08.92 |
06.71 |
06.92 |
03.18 |
|
Panicum maximum |
K 211 |
01.04 |
01.92 |
03.26 |
08.50 |
06.32 |
07.38 |
08.43 |
05.26 |
03.14 |
|
Panicum maximum |
G 23 a |
04.38 |
04.08 |
09.82 |
13.86 |
11.07 |
06.38 |
11.22 |
08.69 |
03.76 |
|
Panicum maximum |
G 23 b |
04.22 |
05.53 |
08.06 |
14.34 |
09.97 |
08.28 |
08.41 |
08.40 |
03.25 |
|
Panicum maximum |
G 17 |
03.47 |
04.73 |
11.51 |
11.06 |
09.74 |
06.22 |
11.39 |
08.30 |
03.41 |