Table 2.

Elemental compositions (%) and phytolith content in organs (grains, sheath, stem and leaf) of the different rice cultivars.

Rice cultivars	Rice organs	Phytolith	Si	Al	Fe	PhytOCa
		%
Xiushui-09	Grains	2.06 ± 0.03C	1.21 ± 0.15A	0.004 ± 0.001A	0.013 ± 0.002A	0.04 ± 0.00AB
Ning-81		2.66 ± 0.39A	0.98 ± 0.12A	0.003 ± 0.000AB	0.012 ± 0.000A	0.08 ± 0.02A
Xianghu-301		2.72 ± 0.58A	0.99 ± 0.02A	0.003 ± 0.000AB	0.012 ± 0.001A	0.06 ± 0.02AB
Zhejing-37		1.55 ± 0.58D	0.64 ± 0.06B	0.002 ± 0.001AB	0.013 ± 0.001A	0.04 ± 0.02B
Jiahua-11		2.16 ± 0.21B	1.26 ± 0.06A	0.001 ± 0.000B	0.009 ± 0.002A	0.06 ± 0.01AB
Mean		2.23d	1.00d	0.003b	0.012b	0.06d
Xiushui-09	Sheath	12.48 ± 0.57B	4.95 ± 0.09AB	0.012 ± 0.001A	0.030 ± 0.005B	0.25 ± 0.02A
Ning-81		10.89 ± 0.38D	4.37 ± 0.48B	0.011 ± 0.001A	0.047 ± 0.005A	0.21 ± 0.01BC
Xianghu-301		11.86 ± 0.58C	4.38 ± 0.21B	0.009 ± 0.001AB	0.033 ± 0.004B	0.24 ± 0.02AB
Zhejing-37		10.31 ± 0.24D	3.89 ± 0.38B	0.006 ± 0.001B	0.027 ± 0.002B	0.23 ± 0.01ABC
Jiahua-11		14.40 ± 0.70A	6.41 ± 0.79A	0.006 ± 0.002B	0.031 ± 0.001B	0.20 ± 0.01C
Mean		11.99a	4.80a	0.009a	0.034a	0.23a
Xiushui-09	Leaf	7.46 ± 0.01B	3.51 ± 0.32B	0.007 ± 0.002A	0.020 ± 0.004A	0.14 ± 0.00B
Ning-81		6.46 ± 0.92C	3.76 ± 0.25B	0.006 ± 0.001A	0.019 ± 0.003A	0.16 ± 0.03B
Xianghu-301		7.79 ± 0.52A	3.72 ± 0.23B	0.005 ± 0.001A	0.022 ± 0.001A	0.17 ± 0.02AB
Zhejing-37		7.93 ± 0.52A	3.37 ± 0.16B	0.004 ± 0.001A	0.022 ± 0.001A	0.20 ± 0.02A
Jiahua-11		7.46 ± 0.01AB	4.99 ± 0.35A	0.003 ± 0.001A	0.014 ± 0.001A	0.17 ± 0.00AB
Mean		7.04b	3.87b	0.005b	0.019b	0.17b
Xiushui-09	Stem	3.09 ± 0.34C	2.14 ± 0.07A	0.003 ± 0.000AB	0.029 ± 0.004A	0.07 ± 0.01C
Ning-81		3.74 ± 1.16B	1.26 ± 0.07A	0.005 ± 0.000A	0.012 ± 0.002B	0.07 ± 0.03C
Xianghu-301		3.91 ± 0.24AB	1.46 ± 0.17B	0.004 ± 0.000AB	0.029 ± 0.004A	0.13 ± 0.01A
Zhejing-37		4.02 ± 0.23A	2.14 ± 0.23B	0.004 ± 0.001AB	0.014 ± 0.000B	0.09 ± 0.01BC
Jiahua-11		4.00 ± 0.50A	2.08 ± 0.19A	0.002 ± 0.001B	0.014 ± 0.001B	0.11 ± 0.02AB
Mean		3.75c	1.82c	0.004b	0.020b	0.09c

Means with various letters are significantly different at the p < 0.05 level of confidence according to Duncan's Multiple Range Test.

Different lowercase and uppercase letters indicate significant differences among the stands in rice organs and rice cultivars.

^aPhytOC, OC occluded in phytoliths per 100 g of dry matter for each organs.