Table 4 Average number of seeds and pods measured during growth and production experiment GP2 across treatments A-E (n = 20) and treatment F (n = 5), with average concentration of total plant P (µmol/g) in above-ground soy tissue (n = 3). Standard Pi fertilizer treated plants (treatment F) were compared with treatments A-E using TukeyHSD post-hoc analysis following one-way ANOVA that showed significant increases in seed, pod number, and plant P concentration in treatment F compared to all other treatments (P < 0.0001). Mean values with common superscript letters are not significantly different based on post-hoc analysis (α = 0.05).
Treatment | Average Seed Number | Average Pod Number | Plant P Concentration (µmol/g) | |
|---|---|---|---|---|
A | Control | 3.2 + 0.9b | 1.9 + 0.6b | 4.9 + 0.9b |
B | −P Control | 3.4 + 1.7b | 2.5 + 1.1b | 8.1 + 1.7b |
C | HA (15 ppm P) | 3.0 + 1.0b | 2.1 + 0.8b | 8.3 + 2.7b |
D | nHA (15 ppm P) | 2.7 + 0.8b | 2.3 + 0.6b | 7.3 + 0.7b |
E | nHA (56.5 ppm P) | 3.4 + 1.1b | 2.5 + 0.6b | 6.6 + 0.8b |
F | Soluble Pi (P2O5) | 41.2 + 9.1a | 20.0 + 1.6a | 148.0 + 16.5a |
