Wheat (Triticum aestivum L.) Cultivar Selection Affects Double-Crop and Relay-Intercrop Soybean (Glycine max L.) Response on Claypan Soils

Table 7

Soybean plant population and height 30 d after planting (DAP), plant population at harvest, and yield main effects for soybean cultivars in a relay-intercropping system, planted in 38-cm wide-row wheat in 2003, 2004, and 2005. All data except height were averaged over relay-intercropped wheat cultivars (Pioneer 25R37 and Ernie).

Soybean cultivar	Population	Height		Population at harvest	Yield
	30 DAP	P25R37	Ernie
	No. m^-2	cm		No. m^-2	kg ha^-1
H431 NC	37	12	13	26	2010
H431 ITC	17	8	4	22	2290
DK 38–52	38	13	12	28	1700
LSD (𝑃=.05)	4	3		3	270

aAbbreviations: ITC, Intellicoat; NC, Noncoated.