Table 3.

Observed mean grain yield of the three soybean cultivars used in this study across different locations and sowing dates under two irrigation regimes.

Effect	Variables	n	Average grain yield (t ha−1) ± SD	Significance level
Irrigation regime	Non irrigated	33	3.56 ± 0.80	***
	Irrigated	33	4.48 ± 0. 69
Locations	En Crambade	24	4.25 ± 0.57	NS
	Mondonville	18	4.02 ± 1.03
	Rivières	24	3.91 ± 1.03
Sowing date	Early	30	3.91 ± 0.92	NS
	Conventional	36	4.14 ± 0.80
Cultivars	Ecudor	22	4.14 ± 0.80	NS
	Isidor	22	3.91± 0.92
	Santana	22	4.14 ± 1.03
Year	2013	33	3.56 ± 0.80	***
	2014	33	4.60 ± 0.57

***p < 0.001.

Grain yield is referred to yield with 13% of humidity.

NS, not significant