Table 2.

Analysis of Variance (ANOVA) table for Pseudoroegneria spicata (PSSP) density and cover and Bromus tectorum (BRTE) cover by site. Year represents sampling year of 2018 and 2019. Values in table represent the following in order: X2/F, p-value, degrees of freedom, with X2 applying to Density and F applying to Cover.

StatisticBelgradeCorvallis WestCorvallis East
PSSP DensityPSSP CoverBRTE CoverPSSP DensityPSSP CoverBRTE CoverPSSP DensityPSSP CoverBRTE Cover
HerbicideX2/F84.67074.32516.8300.13730.1522.8280.4931.5720.706
p-value< 0.001< 0.0010.0020.719< 0.0010.1240.4990.2380.420
df1, 101, 101, 101, 101, 101, 101, 101, 101, 10
SeedingX2/F5.3921.0031.3155.0915.230.8563.1511.3750.398
p-value0.0210.4590.3430.025< 0.0010.5290.0780.3240.805
df4, 84, 84, 84, 84, 84, 84, 84, 84, 8
YearX2/F47.6854.6699.23010.93011.70127.5217.850.08822.60
p-value< 0.0010.043< 0.0010.0040.003< 0.001< 0.0010.770< 0.001
df1, 201, 201, 201, 201, 201, 201, 201, 201, 20
Herbicide * YearX2/F0.53229.723.0696.6045.0560.1510.2530.3480.083
p-value0.474< 0.0010.0950.0180.0360.7020.6210.5620.777
df1, 201, 201, 201, 201, 201, 201, 201, 201, 20
Seeding * YearX2/F8.2631.101.6192.1240.6820.0333.0050.7451.098
p-value< 0.0010.3840.2090.1160.6130.9980.0430.5730.385
df4, 204, 204, 204, 204, 204, 204, 204, 204, 20
Herbicide * SeedingX2/F2.5730.8932.0921.8116.2281.1494.0030.4091.043
p-value0.1030.5030.1570.2030.0090.3880.0340.7990.432
df4, 104, 104, 104, 104, 104, 104, 104, 104, 10
Herbicide * Seeding * YearX2/F1.2500.293.4760.1240.6760.7921.0610.0901.040
p-value0.3220.8810.0260.9720.6160.5440.4010.9840.412
df4, 204, 204, 204, 204, 204, 204, 204, 204, 20