Table 1.

Selected shoot and root parameter means for Banks and Kite tiller inhibition NILs measured in cool and warm environments in 2003 and 2004

All environments were sampled at between 380 °Cd and 450 °Cd. Data are also given for Silverstar NILs sampled later at week 7 (585 °Cd and 570 °Cd for cool and warm environments, respectively).

Environment	Entry	No. of leaves	Tillers per plant (n)	Tiller leaf area (cm2)	Tiller biomass per plant (mg)	Mainstem leaf area (cm2)	Total leaf area (cm2)	Specific leaf area (cm2 g–1)	Total shoot weight (mg)	No. of seminals per plant (n)
2003 cool	Banks–	4.2	2.0	2.1	69	46	48	439	217	4.7
	Banks+	4.3	0.3*	0.1**	2**	48	48	391*	191*	5.0
	Banks++	4.4	0.0*	0.0**	0**	45	45	354**	192*	5.0
	Kite–	4.2	2.0	1.3	48	48	49	421	213	3.7
	Kite+	4.2	0.4*	0.3**	13**	61**	61*	409	228	3.3
	Silverstar–	5.9	5.3	115	588	127	242	356	1310	4.1
	Silverstar+	6.2	1.7**	32**	118**	124	156**	310**	768**	4.9
2003 warm	Banks–	4.1	2.0	2.3	48	43	45	469	174	5.0
	Banks+	4.3	1.0*	1.2*	28*	44	45	432*	171	4.3*
	Banks++	4.3	0.0*	0.0**	0**	49*	49	362**	175	5.0
	Kite–	4.6	2.0	2.9	67	53	56	431	239	4.3
	Kite+	4.3	1.8	2.3*	54	46*	48*	429	195**	4.7
	Silverstar–	5.8	6.7	77	420	93	170	384	778	4.7
	Silverstar+	6.0	2.7**	84	483*	114*	198*	332*	1005**	5.6
2004 cool	Banks–	4.1	2.0	0.5	73	33	34	374	200	5.3
	Banks+	4.4	1.0*	0.2	71	37	37	328**	237*	5.3
	Banks++	4.2	1.0*	0.0*	12**	38	38	264**	192	4.7*
	Kite–	4.3	2.3	2.8	116	41	44*	334	254	5.3
	Kite+	4.2	2.0	1.9*	81*	49*	51	293*	325**	4.8*
2004 warm	Banks–	3.7	1.7	0.9	28	42	43	491	129	4.3
	Banks+	3.9	0.5*	0.2*	6	44	44	461**	137	4.3
	Banks++	3.8	0.0*	0.1**	4	40	40*	412**	141	4.5
	Kite–	3.8	1.8	0.7	24	50	51	435	159	4.3
	Kite+	3.7	0.8*	0.4	14	47	47*	449	143*	4.0

* and ** denote that restricted-tillering, tin NIL means are statistically different from non-tin, free-tillering sister NIL means at P=0.05 and 0.01, respectively. –, +, ++ refer to free tillering, oligoculm and biculm NILs, respectively.