Table 3.

Means (±SE) of chromosome doubling (% DH) following caffeine treatment during anther culture on five crosses in 2018. Plants were grown to maturity at DPIRD South Perth (DPI) or Virginia, South Australia (VIR). The number of plants transplanted for each treatment and cross is indicated in parentheses.

Cross	Grow-Out Location	% DH
		Control	Caffeine (0.5 mM/24 h)	5% LSD
Lancer/LPB14-0392	DPI	31 (±2.6)	31 (±2.5)	9.6
		(309)	(351)
Coolah/LPB16-3182	DPI	29 (±2.7)	35 (±3.0)
		(285)	(249)
Scepter/05PN240	DPI	62 (±4.4)	61 (±4.7)
		(125)	(108)
Trojan/Havoc	VIR	64 (±3.5)	58 (±3.6)	10.0
		(200)	(190)
Trojan/Chief CL	VIR	47 (±3.6)	42 (±3.5)
		(200)	(200)