Marker-assisted breeding of Indonesia local rice variety Siputeh for semi-dwarf phonetype, good grain quality and disease resistance to bacterial blight

Rice

Table 3 Agronomic traits of Siputeh and TS4 plants grown in field trials

	Field trial 1^a			Field trial 2^b
Agronomic trait	Siputeh	TS4	t-test^c	Siputeh	TS4	t-test
Growth duration (days)	160	117	-	182	162	-
Plant height (cm)	208.3 ± 3.9	123.7 ± 2.1**	33.081	214.6 ± 4.4	106.7 ± 1.1**	41.120
Productive panicles per plant	6.5 ± 0.8	9.0 ± 0.4**	4.841	4.8 ± 0.2	5.7 ± 0.5*	3.298
Grain number per panicle	137.3 ± 3.4	129.7 ± 2.9*	2.946	172.4 ± 11.5	139.0 ± 16.3*	2.902
Seed-setting rate (%)	70.1 ± 2.8	80.6 ± 2.6**	4.760	70.5 ± 1.2	82.8 ± 2.0**	9.097
1000-grain weight (g)	27.4 ± 0.7	27.6 ± 0.4	0.430	31.7 ± 0.6	34.1 ± 0.5**	8.978
Yield (t/ha)	4.3 ± 0.3	6.5 ± 0.1**	12.050	6.6 ± 0.7	8.0 ± 0.2*	3.538

^aField trial 1 was conducted in Banda Aceh, Indonesia, in the wet season of 2011/2012 (November 2011 to April 2012).
^bField trial 2 was conducted in Lingshui, China, in the winter season of 2013/2014 (November 2013 to May 2013).
^ct-test is the comparision between Siputeh and TS4. T_{0.05, 4} = 2.776, T_{0.01, 4} = 4.604. “**” and “*” stand for significance difference at 0.01 and 0.05 probability levels, respectively.