Rice

Table 3 Major important agronomic traits of MH725, WH6725 and hybrid rice

From: Marker-assisted breeding of the rice restorer line Wanhui 6725 for disease resistance, submergence tolerance and aromatic fragrance

Field trial^a	Variety^b	Growth duration (days)	Plant height (cm)	Number of effective panicles/plant	Panicle length (cm)	Total number of spikelets/panicle	Spikelet fertility (%)	1000-grain weight (g)	Yield/plant (g)
1	MH725 (I)	159	91.5 ± 1.4	8.6 ± 0.9	22.7 ± 0.4	167.3 ± 14.3	88.9 ± 1.1	29.7 ± 0.9	38.4 ± 8.2
	WH6725 (I)	160	92.1 ± 1.3	7.7 ± 0.9	22.0 ± 0.4	154.7 ± 5.1	90.9 ± 3.7	29.4 ± 0.3	31.9 ± 3.4
	P-value^c	-	0.76	0.24	0.58	0.50	0.45	0.70	0.40
2	MH725 (I)	154	93.4 ± 0.3	5.1 ± 0.3	21.4 ± 0.7	157.3 ± 27.2	91.7 ± 1.4	27.7 ± 0.5	21.6 ± 2.0
	WH6725 (I)	155	98.5 ± 1.3*	5.0 ± 0.2	21.5 ± 0.1	149.7 ± 2.8	91.0 ± 1.2	29.8 ± 0.6*	20.5 ± 0.9
	P-value	-	0.03	0.42	0.75	0.70	0.71	0.05	0.20
3	MH725 (I)	138	121.2 ± 2.1	6.7 ± 1.0	26.8 ± 0.5	216.1 ± 11.2	72.1 ± 5.8	26.1 ± 0.3	27.3 ± 4.2
	WH6725 (I)	139	130.1 ± 2.6**	6.9 ± 0.9	26.9 ± 1.6	182.4 ± 44.5	77.6 ± 9.9	28.3 ± 0.4**	26.9 ± 2.6
	P-value	-	0.01	0.30	0.95	0.32	0.18	0.00	0.93
	II-32A/MH725 (H)	139	145.1 ± 6.3	6.4 ± 1.3	30.3 ± 3.0	226.3 ± 21.6	77.9 ± 4.1	26.4 ± 0.1	29.4 ± 3.7
	II-32A/WH6725 (H)	140	145.1 ± 4.7	6.3 ± 1.0	28.5 ± 0.8	245.9 ± 31.8	84.8 ± 5.5	27.0 ± 0.3	35.1 ± 3.5
	P-value	-	0.98	0.88	0.31	0.12	0.32	0.07	0.25
4	MH725 (I)	136	115.2 ± 0.3	7.4 ± 0.1	28.4 ± 0.6	217.8 ± 43.4	87.9 ± 1.3	26.5 ± 0.4	38.2 ± 7.4
	WH6725 (I)	136	122.6 ± 1.1**	7.5 ± 0.7	27.0 ± 0.3**	183.6 ± 7.6	88.6 ± 2.4	29.1 ± 0.4**	35.2 ± 2.3
	P-value	-	0.01	0.72	0.01	0.35	0.77	0.00	0.47
	II-32A/MH725 (H)	138	131.6 ± 1.1	7.4 ± 0.6	26.8 ± 1.4	299.5 ± 74.1	91.3 ± 2.7	26.9 ± 0.4	45.8 ± 3.0
	II-32A/WH6725 (H)	138	131.9 ± 0.8	6.7 ± 0.6	26.4 ± 0.2	220.1 ± 4.7	90.0 ± 3.8	27.9 ± 0.6*	38.2 ± 3.1
	P-value	-	0.69	0.09	0.61	0.22	0.61	0.04	0.12

*, **Stand for significance at 0.01 and 0.05 probability levels, respectively
^aField trial 1 was conducted in Lingshui, Hainan, China, in the winter season from November 2013 to April 2014. Plant spaced at 13 cm × 25 cm coupled a seedling per hill. Field trial 2 was conducted in Lingshui, Hainan, China, in the winter season from November 2014 to April 2015. Plants spaced at 13 cm × 17 cm coupled a seedling per hill. Field trial 3 was conducted in Hefei, Anhui, China, in the summer season from May 2014 to October 2014. Plant spaced at 16 cm × 17 cm coupled a seedling per hill. Field trial 4 was conducted in Hefei, Anhui, China, in the summer season from May 2015 to October 2015. Plant spaced at 13 cm × 27 cm coupled a seedling per hill
^bI, inbred rice; H, hybrid rice
^c P-value for each trait was calculated in Microsoft Office Excel 2007 according to a two-tailed t-test for paired samples

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