Table 3. Effect of T. asperellum on the total ascorbic acid content and the ASA/DHA ratio in the maize leaves and roots on saline–alkaline soil.
| Treatmenta | XY335 | JY417 | |||
|---|---|---|---|---|---|
| ASA+DHA contentb (μmol·g-1 FW) | ASA/DHA content | ASA+DHA content(μmol·g-1 FW) | ASA/DHA content | ||
| Leaf | Con1 | 6.46±0.072dc | 0.35±0.012e | 7.19±0.062d | 0.43±0.008d |
| Con2 | 5.35±0.101e | 3.15±0.041a | 5.90±0.038e | 3.35±0.233a | |
| A1 | 7.22±0.142c | 0.51±0.033d | 8.82±0.172c | 0.71±0.036d | |
| A2 | 10.24±0.143b | 0.85±0.010c | 12.75±0.126b | 0.98±0.017c | |
| A3 | 15.51±0.220a | 1.46±0.035b | 17.06±0.359a | 1.62±0.017b | |
| Root | Con1 | 4.87±0.069d | 3.28±0.148d | 5.63±0.091d | 4.54±0.406e |
| Con2 | 3.88±0.051e | 13.80±0.666a | 4.83±0.088e | 17.94±0.701a | |
| A1 | 6.05±0.038c | 4.70±0.532c | 6.83±0.122c | 5.81±0.501d | |
| A2 | 6.94±0.062b | 6.29±0.725c | 8.03±0.165b | 7.38±0.750c | |
| A3 | 11.62±0.109a | 11.84±0.139b | 13.11±0.116a | 12.80±0.907b | |
Note:
a Con1, A1, A2, and A3 indicate 0, 1 × 103, 1 × 106, and 1 × 109 spores/L suspension, respectively; Con2 is the meadow soil control.
b Total ascorbic acid content was measured on the 27th d after T. asperellum application.
c According to the Duncan’s test, different lowercase letters in the Table indicate the significant differences (P < 0.05) between the different treatments, and the numerical value is the mean value of triplicate repeats ± SE