Table 2.

Variance components analysis (F-stat. and F-prob.) and standard errors of differences of means (SED) of cultivar effects on rice grain dry weights (rice grain DW), maximum above-ground Striga numbers (NSmax) and above-ground Striga biomass (dry weights) (Striga DW) at harvest, obtained from S. asiatica (Kyela) and S. hermonthica (Mbita) infested fields during two seasons per location.

Striga sp.a	Trial	df	Rice grain DW			NSmaxb			Striga DW
			F-stat.	F-prob.	SED	F-stat.	F-prob.	SED	F-stat.	F-prob.	SED
Sa	Kyela 2011	24	2.982	<0.001	0.030	9.477	<0.001	0.490	2.922	<0.001	0.077
	Kyela 2012-1	24	4.953	<0.001	0.025	4.172	<0.001	0.496	1.255	0.217	0.096
	Kyela 2012-2	24	3.058	<0.001	0.026	75.408	<0.001	0.304	2.017	0.009	2.430
Sh	Mbita 2010	24 (23)c	1.881	0.019	0.048	11.115	<0.001	1.060	1.946	0.012	5.008
	Mbita 2011	24 (23)c	1.256	0.221	0.043	55.181	<0.001	0.627	5.548	<0.001	11.100

^aSa = S. asiatica; Sh = S. hermonthica.

^bBased on a generalized linear model with Poisson distribution.

^cGrain DW of Mbita trials have 23 degrees of freedom, as Supa India did not reach flowering due to photoperiodicity.