Table 2.

Grain yield, straw and root dry weight (DW), and harvest index of rice under different water regimes and Zn source treatments

Genotype	Zn treatment	Grain yield (g/pot)		Straw DW (g/pot)		Root DW (g/pot)		Harvest index (%)
		CF	AWD	CF	AWD	CF	AWD	CF	AWD
Nipponbare	Control	29.9c	33.4c	55.4b	60.2c	6.9c	7.6c	35.1c	34.9b
	ZnSO4	38.6a	44.2a	61.0a	71.3a	7.9a	9.4a	40.7a	38.3a
	Zn-EDTA	36.0b	39.6b	57.0a	66.1b	7.3b	8.4b	37.1b	39.4a
	Mean	34.8A	39.1A	57.8A	65.9A	7.3A	8.5A	37.6A	37.5A
Jiaxing27	Control	27.4c	29.6c	48.9b	51.0b	6.2c	6.7c	35.9b	35.5b
	ZnSO4	34.5a	38.9a	60.0a	65.7a	7.4a	8.6a	37.9a	38.7a
	Zn-EDTA	32.7b	36.1b	56.4a	61.7a	7.0b	8.0b	36.8ab	36.8ab
	Mean	31.5B	34.9B	55.1A	59.4B	6.9B	7.7B	36.9A	37.0A

Within a column, means followed by different letters are significantly different at P<0.05 according to Duncan’s multiple range test. Lower-case and upper-case letters indicate comparisons among three Zn treatments and between two genotypes, respectively