Skip to main content
. 2022 Oct 19;13:1013023. doi: 10.3389/fmicb.2022.1013023

Table 2.

Analysis of variance (ANOVA) for the effects of fungal inoculation (Fungi) and nitrogen addition treatment (N) on growth and physiological parameters and microbial composition in the rhizosphere soil of Pinus tabulaeformis.

Fungi N Fungi × N
F p F p F p
Fungi colonization rate 45.881 <0.001 120.735 <0.001 79.895 <0.001
Plant height 19.885 <0.001 62.675 <0.001 6.060 <0.001
Ground diameter 8.220 <0.001 89.460 <0.001 1.975 0.084
Shoot dry weight 1.712 0.173 46.127 <0.001 2.140 0.063
Root dry weight 6.979 <0.001 115.226 <0.001 32.099 <0.001
Total dry weight 4.193 <0.001 96.866 <0.001 8.461 <0.001
Mycorrhizal growth response 5.561 0.005 179.965 <0.001 3.537 0.012
Total root length 21.519 <0.001 304.060 <0.001 4.048 0.002
Root surface area 41.821 <0.001 98.026 <0.001 17.421 <0.001
Root volume 27.442 <0.001 405.086 <0.001 45.573 <0.001
Average root diameter 12.492 <0.001 35.555 <0.001 28.349 <0.001
Shoot N concentration 3.311 0.023 170.377 <0.001 3.087 0.012
Shoot P concentration 20.156 <0.001 215.700 <0.001 3.746 0.004
Shoot K concentration 16.939 <0.001 251.842 <0.001 3.019 0.013
Root N concentration 20.005 <0.001 93.647 <0.001 2.359 0.042
Root P concentration 30.805 <0.001 210.569 <0.001 15.254 <0.001
Root K concentration 23.139 <0.001 463.239 <0.001 34.561 <0.001
Gram-positive bacteria 5.266 0.002 25.013 <0.001 1.919 0.094
Gram-negative bacteria 19.857 <0.001 45.345 <0.001 0.961 0.484
Fungi 3.807 0.013 21.142 <0.001 0.406 0.908
Actinomycetes 5.802 0.001 86.796 <0.001 3.114 0.011
Total PLFAs 29.905 <0.001 152.590 <0.001 2.528 0.031
Shannon–Weaver index 1.349 0.275 20.992 <0.001 3.203 0.009

Significant p values are in bold.