Demand-Driven Technologies for Sustainable Maize ... - IITA

70Table 4. Mean squares of grain yield, number of ears/plant, host damage score, and number of emerged Striga plants at 10 weeks afterplanting from a combined analysis of variance for diallel crosses of 10 inbred lines tested at Ina and Angaradébou (Republic of Benin)in 2001 and 2002.Source of variation DFGrain yield/infested plotGrain yield/non-infested plotNumber ofears/plantHostdamagescore/plotNumber ofemergedStriga plants/plotEnv 3 24260859.2** 299340949.4**Rep (Env) 8 2042230.7** 429188.2**GCA 9 4676284.88** 1272245.8 nsSCA 35 438746.3 ns 586372.6 nsGCA × Env 27 1690702.8** 919766.4**SCA × Env 105 296746.0 ns 302429.2 nsPooled error 352 161484.1 363916.01.72**0.08**0.22**0.02*0.10**0.01 ns0.02236.95**2115875.32**5.44**15771.26**8.06** 85192.08**1.00 ns 4145.36 ns1.91** 29056.58**0.58 ns 2638.07 ns0.51 4557.57Env= Environment; Rep= Replicate; GCA= General combining ability; SCA= Specifi c combining ability.*, **, Signifi cant at the 0.05 and 0.01 probability levels, respectively; ns = not signifi cant.