Factors | Levels | ||||
−a (−2.378) | −1 | 0 | +1 | +a (+2.378) | |
D: Starch | 1.890 | 5 | 10 | 15 | 21.890 |
E: Yeast extract | 0.378 | 1 | 2 | 3 | 4.378 |
G: CaCl2 | 0.524 | 0.800 | 1 | 1.2 | 1.475 |
J: Salts: |
|
|
|
|
|
FeSO4, 7H2O | 0.034 | 0.065 | 0.10 | 0.135 | 0.182 |
MnSO4 | 0.034 | 0.065 | 0.10 | 0.135 | 0.182 |
MgCl2∙6H2O | 0.070 | 0.13 | 0.20 | 0.27 | 0.364 |
B: pH | 5.20 | 5.35 | 5.50 | 5.65 | 5.80 |