Effects of manganese-excess on CO2 assimilation, ribulose-1,5-bisphosphate carboxylase/oxygenase, carbohydrates and photosynthetic electron transport of leaves, and antioxidant systems of leaves and roots in Citrus grandisseedlings

Table 1 Effects of Mn-excess on leaf, stem and root DW, and specific leaf weight in sour pummelo seedlings

Treatments	Root DW (g plant^-1)	Stem DW (g plant^-1)	Leaf DW (g plant^-1)	Root DW/Shoot DW	Specific leaf weight
					(g FW m^-2)	(g DW m^-2)
Control	5.83 ± 0.68 a	6.16 ± 0.64 a	10.41 ± 0.59 a	0.35 ± 0.02 b	275 ± 4 a	124 ± 3 a
Mn-excess	3.68 ± 0.62 b	3.16 ± 0.68 b	5.78 ± 0.86 b	0.41 ± 0.02 a	244 ± 10 b	109 ± 5 b

Data are means ± standard errors (n = 5 or 10). Within a column, values followed by different letters are significantly different at P < 0.05.

ISSN: 1471-2229