Grain Sorghum Response to Row Spacing and Plant Populations in the Texas Coastal Bend Region

Table 2

Grain sorghum response to single and twin rows and plant populations under dryland conditions.

Rows	Plant populations	Heads/plant		Number of seed/head		Grain weight/head (g)		Weight of; 1,000 seed (g)		Yield (kg/ha)
	(1000s/ha)	2000	2001	2000	2001	2000	2001	2000	2001	2000	2001
Single row	124–160	0.98	0.71	1610	776	40.3	23.8	25.0	18.9	4400	2140
	161–198	0.88	0.63	1436	592	33.1	14.0	23.1	19.8	5110	1910
	199–235	0.90	—	1272	—	34.0	—	26.9	—	5400	—
Twin rows	124–160	0.77	0.68	1937	531	48.1	10.4	24.8	19.6	5700	1810
	161–198	0.81	0.42	1650	542	40.4	10.1	24.5	18.7	5640	1430
	199–235	0.84	—	1449	—	34.4	—	23.8	—	5780	—
LSD (0.05)		0.12	0.13	316	150	11.2	2.3	NS	NS	1010	570