| Treatments | |||
Control | + R. irregularis | |||
2012 | 2013 | 2012 | 2013 | |
Total biomass Yield (kg∙ha−1) | 4312 (20.4)(1) a(2) | 4184 (28.7)a | 4662 (25.6)a | 5401 (71.6)b |
Spike number per ha (×104) | 177.1 (27.5) a | 167.3 (29.1)a | 227.7 (18.8)b | 236.7 (26.9)b |
Thousand-seed weight | 42.3 (2.5) a | 41.7 (2.8)a | 42.7 (2.5)a | 45.2 (2.5)b |
Shoot N content (%) | nd(3) | 5.31 (0.60)a | nd | 5.39 (0.11)a |
Shoot P content (mg∙g−1) | nd | 6.25 (0.91)a | nd | 7.62 (0.29)b |
Mycorrhizal colonization (%) | 46.7 (5.8)a | 54.7 (4.7)a | 53.9 (5.6)a | 66.9 (3.9) b |
Hyphal length (m∙g−1 dry soil) | 1.66 (0.08)a | 1.83 (0.09)a | 1.72 (0.07)a | 2.89 (0.07)b |