Table 2.

Summary of analysis of variance (ANOVA) for the influence of high temperature, soil fertilization treatments, and their interactions on metabolites, antioxidants, and ROS production in xylem sap of two rice cultivars

Source of Variation	Sugar	Protein	Proline	SOD	POD	CAT	As	GR	GSH	GSSG	ASC	MDA	H2O2
IR-64
Temperature treatments	**	**	**	**	**	*	**	**	**	**	**	**	**
Soil fertilization treatments	**	**	**	**	*	**	**	**	**	**	**	**	**
Temperature × SFT	ns	ns	ns	*	ns	ns	ns	**	ns	ns	**	Ns	ns
CV	11.79	11.38	4.18	5.67	7.24	5.84	7.78	12.53	5.37	9.11	7.92	6.79	6.06
HHZ
Temperature treatments	**	**	**	**	*	**	**	**	**	**	**	**	**
Soil fertilization treatments	**	**	**	*	*	**	**	**	*	**	**	**	**
Temperature × SFT	ns	ns	ns	ns	*	ns	ns	ns	ns	ns	ns	ns	Ns
CV	10.50	6.88	4.04	4.78	6.56	7.91	6.97	7.38	6.08	7.66	6.95	5.99	4.62

** and * denote significance at the 0.01 and 0.05 probability level, respectively

ns non-significant, CV Coefficient of variation, PGR Plant growth regulators, SOD superoxide dismutase, POD peroxidase, CAT catalase, APX ascorbate peroxidase, GR glutathione reductase, GSH glutathione, GSSG glutathione disulfide, ASC ascorbate, HHZ Huanghuazhan (heat tolerant), IR-64 (heat susceptible)