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Table 1 Results of variance analysis of the Zea mays treated with nano Tio ₂ at vegetative and reproductive stages

From: Study of photosynthetic pigments changes of maize (Zea mays L.) under nano Tio₂ spraying at various growth stages

Means square
Anthocyanins	Carotenoids	Chlorophyll a/b	Chlorophyll a + b	Chlorophyll b	Chlorophyll a	df	Sources of variation
15.38**	0.0007 ^ns	0.0006**	0.005**	0.00369**	0.00053 ^ns	3	Replication
47.27**	0.005**	0.0001 ^ns	0.039**	0.00615**	0.01350**	2	(a) Times of spraying
192.66**	0.005**	0.0026**	0.554**	0.01722**	0.07128**	3	(b) Amounts of Tio₂
1.10^ns	0.0007**	0.0001 ^ns	0.001**	0.00005^ns	0.00116**	6	b × a
2.88	0.0001	0.00008	0.0005	0.00017	0.00018	33	Error

Note: Ns, Non Significant, * and **, Significant at 5% and 1% levels respectively.

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