Research Article
Contribution of Superabsorbent Polymers to Growth and Yield of African Leafy Vegetables
Table 4
Variation of ANOVA over 32 days of cowpea plant from emergence.
| No. of days from emergence | Source of variation | -values at 95% confidence level | Plant height | Stem diameter | Leaf area | No. of mature leaves/plant |
| 14 days | SAP | <0.001 | 0.056ns | <0.001 | 0.004 | Irrigation | <0.001 | 0.085ns | <0.001 | <0.001 | SAP × Irrigation | 0.007 | 0.542ns | 0.061ns | <0.001 |
| 21 days | SAP | 0.010 | <0.001 | 0.279ns | 0.059ns | Irrigation | 0.008 | 0.164ns | 0.304ns | 0.002 | SAP × Irrigation | 0.388ns | 0.115ns | 0.307ns | 0.070ns |
| 28 days | SAP | 0.857ns | 0.064ns | 0.084ns | 0.421ns | Irrigation | 0.020 | 0.008 | 0.078ns | <0.001 | SAP × Irrigation | 0.091ns | 0.321ns | 0.149ns | 0.042 |
| 35 days | SAP | 0.199ns | 0.987ns | 0.429ns | 0.141ns | Irrigation | 0.065ns | <0.001 | 0.025 | <0.001 | SAP × Irrigation | 0.005 | 0.522ns | 0.085ns | <0.001 |
| 32 days | SAP | 0.066ns | 0.779ns | 0.704ns | 0.176ns | Irrigation | <0.001 | <0.001 | 0.323ns | <0.001 | SAP × Irrigation | <0.001 | 0.336ns | 0.698ns | 0.028 |
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Represents significance at 0.05 confidence level. nsrepresents nonsignificance. |