Table 2. ANOVA Analysis for Response Surface Quadratic Model.
| source | sum of the squares | df | mean square | F value | P value | |
|---|---|---|---|---|---|---|
| modelNa-SGM | 6904.92 | 9 | 767.21 | 211.75 | <0.0001 | significant |
| modelK-SGM | 25373.76 | 9 | 2819.31 | 112.08 | <0.0001 | significant |
| A—pHNa-SGM | 1371.57 | 1 | 1371.57 | 378.55 | <0.0001 | |
| A—pHK-SGM | 13001.59 | 1 | 13001.59 | 516.86 | <0.0001 | |
| B—C0,Na-SGM | 628.88 | 1 | 628.88 | 173.57 | <0.0001 | |
| B—C0,K-SGM | 908.45 | 1 | 908.45 | 36.11 | 0.0005 | |
| C—dosageNa-SGM | 161.46 | 1 | 161.46 | 44.56 | 0.0003 | |
| C—dosageK-SGM | 1816.24 | 1 | 1816.24 | 72.20 | <0.0001 | |
| ABNa-SGM | 393.23 | 1 | 393.23 | 108.53 | <0.0001 | |
| ABK-SGM | 0.40 | 1 | 0.40 | 0.016 | 0.9036 | |
| ACNa-SGM | 2276.72 | 1 | 2276.72 | 628.37 | <0.0001 | |
| ACK-SGM | 6555.33 | 1 | 6555.33 | 260.60 | <0.0001 | |
| BCNa-SGM | 644.40 | 1 | 644.40 | 177.85 | <0.0001 | |
| BCK-SGM | 101.71 | 1 | 101.71 | 4.04 | 0.0843 | |
| A2Na-SGM | 1188.03 | 1 | 1188.03 | 327.89 | <0.0001 | |
| A2K-SGM | 135.72 | 1 | 135.72 | 5.40 | 0.0532 | |
| B2Na-SGM | 148.69 | 1 | 148.69 | 41.04 | 0.0004 | |
| B2K-SGM | 170.45 | 1 | 170.45 | 6.78 | 0.0353 | |
| C2Na-SGM | 16.09 | 1 | 16.09 | 4.44 | 0.0731 | |
| C2K-SGM | 2511.92 | 1 | 2511.92 | 99.86 | <0.0001 |