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∙g1)

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∙g1 dry soil)

1.66 (0.08)a

1.83 (0.09)a

1.72 (0.07)a

2.89 (0.07)b