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	0.056^ns	<0.001	0.004
	Irrigation	<0.001	0.085^ns	<0.001	<0.001
	SAP × Irrigation	0.007	0.542^ns	0.061^ns	<0.001
21 days	SAP	0.010	<0.001	0.279^ns	0.059^ns
	Irrigation	0.008	0.164^ns	0.304^ns	0.002
	SAP × Irrigation	0.388^ns	0.115^ns	0.307^ns	0.070^ns
28 days	SAP	0.857^ns	0.064^ns	0.084^ns	0.421^ns
	Irrigation	0.020	0.008	0.078^ns	<0.001
	SAP × Irrigation	0.091^ns	0.321^ns	0.149^ns	0.042
35 days	SAP	0.199^ns	0.987^ns	0.429^ns	0.141^ns
	Irrigation	0.065^ns	<0.001	0.025	<0.001
	SAP × Irrigation	0.005	0.522^ns	0.085^ns	<0.001
32 days	SAP	0.066^ns	0.779^ns	0.704^ns	0.176^ns
	Irrigation	<0.001	<0.001	0.323^ns	<0.001
	SAP × Irrigation	<0.001	0.336^ns	0.698^ns	0.028

Represents significance at 0.05 confidence level. ^nsrepresents nonsignificance.