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. 2018 Jul 1;66(4):516–524. doi: 10.1017/wsc.2018.4

Table 2.

Mean squares from combined ANOVA for agronomic traits and S. hermonthica counts under natural S. hermonthica infestation at three locations (Siaya, Teso, and Rachuonyo) in Kenya across 3 yr (2011–2013).a

Source df AD df PH STR8 STR10 STR12 df GY
Env 6 5,463.46*** 10 177,452.01*** 9.55*** 10.91*** 12.05*** 11 73,561,236.6***
Rep (Env) 12 5.16** 20 1,156.58*** 0.38*** 0.49*** 0.25*** 22 2,140,330.6***
CSb 3 5.17ns 3 518.22ns 2.86*** 8.55*** 7.02*** 3 4,706,516.5*
Varietyc 3 156.63*** 3 1,707.97** 23.19*** 17.05*** 12.38*** 3 25,490,761.9***
CS × Variety 9 0.56ns 9 720.12* 0.19* 0.09ns 0.08ns 9 2,163,813.0***
CS × Env 15 4.93ns 25 719.27ns 0.87*** 0.71*** 0.66*** 27 1,551,125.4ns
Variety × Env 18 53.43*** 30 1,591.18*** 1.88*** 1.42*** 1.48*** 33 4,821,431.3***
CS × Variety × Env 45 2.09ns 75 352.47ns 0.11ns 0.13ns 0.08ns 81 760,160.4***
CS × Rep (Env) 36 3.74** 56 590.99*** 0.21*** 0.23** 0.21*** 60 1,167,614.2***
Variety × Rep (Env) 42 2.23ns 66 330.11ns 0.17*** 0.11ns 0.09ns 72 442,532.4ns
Error 106 1.98 168 286.63 0.09 0.13 0.08 180 378,988
a

Abbreviations: AD, days to anthesis; CS, cropping system; Env, environment; GY, grain yield in metric tons per hectare; ns, not significant; PH, plant height in centimeters; STR8,S. hermonthica count at 8 wk after planting (WAP); STR10, S. hermonthica count at 10 WAP; STR12, S. hermonthica count at 12 WAP.

b

Cropping system (main plot): Desmodium spp.; maize only; peanut; soybean rotation.

c

Variety (subplot): imazpyr-resistant hybrid, imidazolinone-resistant open-pollinated variety, S. hermonthica-resistant hybrid, and commercial maize hybrid.

*

significant at P < 0.05;

**

significant at P < 0.01;

***

significant at P < 0.001.