Table 1 ANOVA tables identifying significant differences between treatment means before (T1) and after treatment (T2) for each physiological response variable (predawn leaf water potential, photosynthesis, stomatal conductance, root to shoot biomass ratio (root:shoot), root exudate total C (TC), root exudate total organic C (TOC), root exudate total inorganic C (TIC), total (root + shoot) biomass).
From: Root exudate composition reflects drought severity gradient in blue grama (Bouteloua gracilis)
T1 | T2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
DF | SS | MS | F | p Value | DF | SS | MS | F | p Value | |
Predawn leaf water potential | ||||||||||
Treatment | 2 | 2.46 | 1.23 | 0.35 | 0.71 | 2 | 12,532.20 | 6266.10 | 7.92 | < 0.01 |
Residuals | 12 | 41.62 | 3.47 | 12 | 9494.50 | 791.20 | ||||
Photosynthesis | ||||||||||
Treatment | 2 | 0.19 | 0.09 | 0.02 | 0.98 | 2 | 13.16 | 6.58 | 15.65 | < 0.001 |
Residuals | 12 | 73.67 | 6.14 | 11 | 4.63 | 0.42 | ||||
Stomatal conductance | ||||||||||
Treatment | 2 | 0.00 | 0.00 | 1.24 | 0.32 | 2 | 0.00 | 0.00 | 1.42 | 0.28 |
Residuals | 12 | 0.00 | 0.00 | 11 | 0.00 | 0.00 | ||||
Root:shoot | ||||||||||
Treatment | 2 | 0.94 | 0.47 | 1.65 | 0.23 | 2 | 0.55 | 0.28 | 1.65 | 0.23 |
Residuals | 12 | 3.41 | 0.28 | 12 | 2.01 | 0.17 | ||||
Total (root + shoot) biomass | ||||||||||
Treatment | 2 | 67,637 | 33,818 | 1.55 | 0.25 | 2 | 61,070 | 30,535 | 4.26 | 0.040 |
Residuals | 12 | 261,665 | 21,805 | 12 | 85,918 | 7160 | ||||
TC | ||||||||||
Treatment | 2 | 2.04 | 1.02 | 3.88 | 0.05 | 2 | 2.65 | 1.32 | 10.13 | < 0.01 |
Residuals | 12 | 3.15 | 0.26 | 12 | 1.57 | 0.13 | ||||
TOC | ||||||||||
Treatment | 2 | 1.64 | 0.82 | 3.81 | 0.05 | 2 | 4.83 | 2.42 | 14.45 | < 0.001 |
Residuals | 12 | 2.58 | 0.22 | 12 | 2.01 | 0.17 | ||||
TIC | ||||||||||
Treatment | 2 | 2.28 | 1.14 | 3.59 | 0.06 | 2 | 1.01 | 0.51 | 2.84 | 0.10 |
Residuals | 12 | 12.00 | 3.81 | 0.32 | 12 | 2.13 | 0.18 | |||
