Variations in Hormones and Antioxidant Status in Relation to Flowering in Early, Mid, and Late Varieties of Date Palm (Phoenix dactylifera) of United Arab Emirates

Table 2

Variation in nonenzymatic antioxidant contents at different stages of growth in the early, mid, and late varieties of date palm.

Variety	Growth stage	Ascorbic acid; Mg/g DW	-Tocopherol	GSH
Nagal	Preflowering	0.694 ± 0.072^b	1.997 ± 0.430^c	0.507 ± 0.056^a
	Flowering	0.814 ± 0.125^a	4.369 ± 0.539^b	0.400 ± 0.274^a
	Postflowering	1.930 ± 0.185^b	5.284 ± 1.102^a	0.450 ± 0.035^b
Khalas	Preflowering	7.494 ± 0.491^b	4.788 ± 0.513^b	1.321 ± 0.074^c
	Flowering	9.358 ± 0.610^a	6.913 ± 0.434^b	3.347 ± 0.054^a
	Postflowering	9.168 ± 0.880^a	7.122 ± 0.690^b	2.349 ± 0.079^b
Lulu	Preflowering	0.862 ± 0.123^b	1.908 ± 0.342^b	0.513 ± 0.045^a
	Flowering	0.963 ± 0.101^b	2.392 ± 0.355^b	0.491 ± 0.021^a
	Postflowering	1.532 ± 0.049^a	4.199 ± 0.836^a	0.619 ± 0.030^b

GSH: reduced glutathione.
Means with different letters in the same variety indicate significantly different values at < 0.05.