|
Table 16 : Productivity of some indigenous and exotic grasses: biomass at the end of the growing season in dry matter ton per hectare. |
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|
Species |
Ecotypes or Orstom cultivars |
DM (t/ha) |
Means |
Standard deviation |
||||||
|
Years |
||||||||||
|
1980 |
1981 |
1982 |
1983 |
1984 |
1985 |
1986 |
||||
|
Indigenous species |
||||||||||
|
Wakwa |
05.92 |
07.68 |
08.79 |
07.65 |
07.11 |
04.50 |
05.85 |
06.79 |
01.44 |
|
|
Andropogon gayanus |
Faro |
07.63 |
05.05 |
13.20 |
12.99 |
10.50 |
04.34 |
05.80 |
08.50 |
03.73 |
|
Brachiaria brizantha |
03.49 |
03.46 |
2.96 |
05.01 |
08.35 |
6.65 |
07.05 |
05.28 |
02.10 |
|
|
Hyparrhenia rufa |
08.33 |
06.41 |
11.72 |
10.46 |
12.50 |
9.80 |
10.10 |
09.90 |
02.05 |
|
|
Melinis tenuissima |
07.34 |
07.42 |
10.94 |
04.83 |
08.69 |
07.80 |
08.10 |
07.87 |
01.82 |
|
|
Exotic species |
||||||||||
|
Pennisetum purpureum |
Kizozi |
01.73 |
0.87 |
17.88 |
10.09 |
03.20 |
04.50 |
04.67 |
06.14 |
05.97 |
|
Tripsacum laxum |
01.77 |
02.64 |
09.13 |
10.79 |
07.68 |
01.70 |
03.31 |
05.29 |
03.80 |
|
|
Brachiaria ruziziensis |
03.56 |
04.04 |
2.64 |
3.83 |
5.64 |
02.32 |
03.50 |
03.65 |
01.08 |
|
|
Panicum maximum |
Bamenca |
06.57 |
01.57 |
21.53 |
18.04 |
08.74 |
02.94 |
04.10 |
09.07 |
07.75 |
|
Panicum maximum |
Bambui |
01.76 |
02.27 |
13.13 |
13.12 |
06.83 |
01.84 |
02.80 |
05.96 |
05.19 |
|
Panicum maximum |
Makueni |
04.67 |
03.48 |
15.00 |
17.79 |
06.92 |
04.79 |
13.00 |
03.38 |
05.77 |
|
Panicum maximum |
Shika |
07.54 |
4.60 |
12.96 |
15.84 |
6.61 |
04.27 |
08.05 |
08.55 |
04.31 |
|
Panicum maximum |
Trichoglume |
01.67 |
- |
07.42 |
10.18 |
- |
- |
- |
- |
- |
|
Panicum maximum |
Coloniao |
6.80 |
3.63 |
12.20 |
12.49 |
7.81 |
05.33 |
04.42 |
07.52 |
03.58 |
|
Panicum maximum |
Killo |
02.56 |
- |
08.37 |
05.51 |
05.47 |
1.60 |
05.52 |
- |
- |
|
Panicum maximum |
K 187 a |
04.59 |
03.96 |
16.38 |
21.81 |
13.97 |
04.15 |
07.98 |
10.41 |
07.06 |
|
Panicum maximum |
K 187 b |
04.88 |
02.68 |
13.69 |
10.97 |
21.68 |
02.35 |
04.93 |
08.74 |
07.12 |
|
Panicum maximum |
K 184 |
04.94 |
02.78 |
07.41 |
06.00 |
24.96 |
02.50 |
05.31 |
07.70 |
07.80 |
|
Panicum maximum |
K 160 |
02.52 |
0.92 |
07.29 |
06.06 |
09.74 |
- |
- |
- |
- |
|
Panicum maximum |
K 89 a |
01.69 |
01.62 |
04.38 |
11.40 |
06.75 |
01.10 |
02.68 |
04.23 |
03.72 |
|
Panicum maximum |
K 89 B |
05.01 |
03.11 |
10.78 |
14.33 |
10.41 |
04.29 |
1.80 |
07.10 |
04.71 |
|
Panicum maximum |
K 211 |
03.03 |
03.06 |
06.20 |
09.55 |
07.30 |
06.02 |
04.51 |
05.67 |
02.35 |
|
Panicum maximum |
G 23 a |
03.42 |
02.12 |
07.93 |
08.12 |
07.15 |
01.09 |
02.65 |
04.64 |
02.99 |
|
Panicum maximum |
G 23b |
04.22 |
01.64 |
11.14 |
04.17 |
07.55 |
02.10 |
03.45 |
04.89 |
03.35 |
|
Panicum maximum |
G17 |
03.09 |
01.38 |
05.22 |
10.07 |
2.79 |
04.51 |
02.38 |
04.21 |
02.89 |