The effects of soil temperature from soil mulching and harvest age on phenol, flavonoid and antioxidant contents of Java tea (Orthosiphon aristatus B.)

Chemical and Biological Technologies in Agriculture

Table 2 ANOVA of variation of mulch nested in harvesting age on each parameter

Parameter	Sig
Parameter	Harvesting age	Variation of mulch (harvesting age)
Minimum soil temperature	< 0.01**	< 0.01**
Mean soil temperature	0.387^ns	0.213^ns
Maximum soil temperature	0.014*	< 0.01**
Plant height	0.706^ns	0.683^ns
Number of leaves	.037*	< 0.01**
Fresh weight	< 0.01**	0.017*
Dry weight	< 0.01**	< 0.01**
Phenol	< 0.01**	0.280^ns
Flavonoids	0.011*	0.380^ns
Antioxidant	0.014*	0.746^ns
GDD	< 0.01**	0.150^ns