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Table 2 Effect of altitude, cutting age and their interaction on chemical composition and yield of Bracheria grass ecotypes

From: Evaluation of morphological characteristics, yield and nutritive value of Brachiaria grass ecotypes in northwestern Ethiopia

Factors Parameters
Cultivar DM (%) DMY (t/ha) Ash (%) CP (%) CPY (t/ha) NDF (%) ADF (%) ADL (%)
Eth. 13726
 Altitude
  Low 37.60a 4.24 8.97 9.81 0.33 71.70 50.99 14.46
  Mid 36.55b 4.63 9.66 12.36 0.47 67.57 51.02 16.57
  High 35.99b 3.28 13.98 11.51 0.34 69.42 50.29 14.87
  Sig ** NS NS NS NS NS NS NS
 Harvesting stages
  60 35.03c 1.69b 12.67 16.33a 0.29 63.87b 42.14b 11.84
  90 36.64b 3.63ab 10.85 10.63ab 0.42 68.72ab 52.73a 15.37
  120 38.47a 6.83a 9.10 6.72b 0.44 76.11a 57.44a 18.69
  Mean 36.71 4.05 10.87 11.23 0.38 69.56 50.77 15.30
  SE 0.55 0.83 1.06 1.55 0.05 1.99 2.38 1.18
  Sig ** * NS * NS * ** NS
Eth. 13809
 Altitude
  Low 38.77a 7.26a 15.40a 14.93a 1.04a 65.26 41.85 10.64
  Mid 38.13b 5.98ab 9.15b 10.54b 0.57b 66.85 44.96 11.99
  High 36.35c 4.50b 12.48a 8.57b 0.36b 64.31 43.60 10.75
  Sig *** ** ** ** ** NS NS NS
 Harvesting stages
  60 36.58c 2.95c 12.35 13.87a 0.43b 59.91 39.11b 9.12b
  90 37.70b 6.51b 11.83 10.60b 0.72ab 63.89 42.18ab 10.54ab
  120 38.96a 8.28a 12.85 9.57b 0.83a 72.62 49.11a 13.72a
  Mean 37.75 5.91 12.34 11.35 0.66 65.47 43.47 11.13
  SE 0.50 0.89 0.95 1.156 0.12 2.40 1.65 0.80
  Sig *** *** NS ** * NS * NS
Eth. 1377
 Altitude
  Low 36.96a 6.28a 12.30 13.04 0.75a 67.57 48.57 13.38
  Mid 35.14b 4.68b 11.47 11.17 0.47b 63.81 43.07 12.93
  High 35.04b 4.30b 10.03 8.60 0.34b 71.80 48.79 13.61
  Sig *** ** NS NS * NS NS NS
 Harvesting stages
  60 34.85c 2.65c 11.58 14.80a 0.41 61.01 40.70b 9.94b
  90 35.57b 5.72b 9.75 10.15b 0.60 68.64 47.65a 14.28a
  120 36.72a 6.89a 12.47 7.86b 0.54 73.52 52.08a 15.70a
  Mean 35.71 5.09 11.27 10.94 0.52 67.72 46.81 13.31
  SE 0.42 0.71 0.72 1.26 0.07 2.47 1.97 0.92
  Sig ** *** NS * NS NS ** *
  1. DM dry matter, DMY dry matter yield, CP crude protein, CPY crude protein yield, NDF neutral detergent fiber, ADF acid detergent fiber, ADL acid detergent lignin, SE standard error, CV coefficient of variation
  2. Mean values followed by a different lowercase superscript letter in the same column are statistically significant at P < 0.05. NS for non-significant, * for P < 0.05 (5%), ** for P < 0.01 (1%) and *** for P < 0.001 (0.1%)