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

68Table 2.Mean squares of grain yield, number of ears/plant, host damage score, and number of emergedStriga plants at 10 weeks after planting from a combined analysis of variance for diallel crosses of 10 inbred linestested at Abuja, Mokwa, Ina and Angaradébou in 2001 and 2002.Grain yield/infested plotGrain yield/non-infested plotNumber ofears/plantHostdamagescore/plotNumber ofemergedStriga plants/plotSource of variation DFSource 7 137090531.8** 255214430.0** 0.90** 232.18** 1034544.67**0.11**Env 16 3558375.0** 5068637.0**7.75** 12927.87**0.74**Rep (Env) 9 20996695.2** 3400218.9*37.99** 101286.14**0.03GCA 35 929089.4* 1663138.7**ns 1.48 ns 2651.60 ns0.10***SCA 63 2556932.9** 1090068.3**4.91** 18895.94**0.02GCA × Env 245 481902.0 ns 566159.1nsns 1.00 ns 2376.63 ns0.02SCA × Env 704 334502.0 639735.00.71 3354.27Env= 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.