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Table 2 Mean above ground biomass yields (kg ha−1) of the six grass species in pure and mixed stands at 80, 50 and 30 % FC at 12, 14 and 16 weeks phenological stage

From: Irrigation levels affects biomass yields and morphometric characteristics of range grasses in arid rangelands of Kenya

  CR ES EM CC CG SB CR/ES CR/ES/EM CR/ES/EM/CC CR/ES/EM/CC/CG
Week 12
 80 % FC 3600.4b ± 76.9 3468.3b ± 34.0 6600.6b ± 37.7 4064.6b ± 18.9 7932.2e ± 93.1 9464.4e ± 23.1 4000.8b ± 84.1 3932.5b ± 14.4 5532.7b ± 11.5 9524.2e ± 163.3
 50 % FC 2532.3a ± 68.1 1800.5a ± 30.4 7400.7e ± 57.7 6532.9b ± 93.0 9400.6e ± 44.4 9200.5e ± 31.2 1464.9a ± 2.9 6732.3b ± 59.7 5932.1b ± 66.6 7664.4e ± 59.7
 30 % FC 2732.3a ± 17.6 3264.1b ± 7.6 5400.1b ± 30.4 5932.4b ± 45.1 9000.7e ± 50.0 7264.8e ± 35.1 1200.9a ± 5.0 4132.1b ± 18.9 4932.3b ± 7.6 6800.6b ± 21.8
 Rainfed 732.5c ± 87.1 364.1d ± 57.6 500.3d ± 80.4 532.5c ± 75.1 707.5c ± 80.0 764.6c ± 55.2 340.4d ± 85.2 432.8c ± 78.1 432.4c ± 57.5 610.5c ± 51.8
Week 14
 80 % FC 2400.2a ± 13.2 4332.5b ± 18.9 5132.9b ± 12.6 2532.4a ± 17.6 9000.3e ± 47.7 12,664.7f ± 25.7 8400.3e ± 26.5 5264.2b ± 16.1 5400.3b ± 13.2 8464.4e ± 44.8
 50 % FC 1800.5a ± 5.0 1200.6a ± 5.0 9000.8e ± 15.0 8400.2e ± 20.0 9532.1e ± 18.9 6864.2b ± 128.5 1600.8a ± 18.0 7864.9e ± 15.3 4332.4b ± 12.6 7932.3e ± 81.3
 30 % FC 3264.5b ± 7.6 3600.6a ± 5.0 6400.9b ± 5.0 5332.1b ± 10.4 9400.5e ± 18.0 7124.3e ± 10.4 1932.1a ± 5.8 4064.0b ± 10.4 5000.1b ± 15.0 5800.7b ± 26.5
 Rainfed 764.2c ± 57.6 381.0d ± 55.1 604.3d ± 45.0 558.2c ± 50.4 767.0c ± 48.0 824.9c ± 60.4 532.8c ± 55.5 464.8c ± 60.3 511.0c ± 65.1 680.6c ± 56.5
Week 16
 80 % FC 3320.6b ± 9.8 5600.3b ± 13.2 6464.5b ± 20.8 2464.8a ± 24.7 10,864.1e ± 41.9 13,664.2f ± 17.6 8864.8e ± 34.03 5600.9b ± 13.2 5732.5b ± 15.3 9664.2e ± 106.1
 50 % FC 2532.3a ± 10.4 1532.2a ± 12.5 10,464.4e ± 17.6 9132.6e ± 34.0 10,200.1e ± 25.0 11,600.0e ± 17.3 1800.5a ± 5.0 7332.1e ± 59.2 6200.8b ± 37.8 9264.6e ± 20.0
 30 % FC 2132.6a ± 12.6 3132.7b ± 12.6 6664.8b ± 10.4 6864.8b ± 12.6 10,132.1e ± 7.6 7664.5e ± 10.4 2864.3a ± 12.6 4400.2b ± 18.0 5132.1b ± 2.9 6800.0b ± 15.0
 Rainfed 759.8c ± 62.2 372.3d ± 42.6 664.8c ± 50.4 664.5c ± 42.5 832.7c ± 3 7.6 964.8c ± 60.5 764.5c ± 42.5 480.1c ± 48.0 532.4c ± 32.2 702.3c ± 45.1
  1. Means within the same columns with different superscripts are significantly different at p < 0.05
  2. CR C. roxburghiana, ES E. superba, EM E. macrostachyus, CC C. ciliaris, CG C. gayana, SB S. sudanense, FC field capacity, ± standard deviation