Table 1.

Root dry mass (DM), shoot DM, and root:total plant dry mass ratio of cv. Mercia measured in a gel chamber, a soil-filled column, and field experiments

	Experiment	Control (rht)	Rht-B1b	Rht-D1b	Rht-B1c	Rht8c	Rht-D1c	Rht12	SED	lsd 5%
Root DM (mg)	Gel chamber	5.57	6.41	6.24	6.87	6.31	6.84	7.49	0.78	1.54
	Soil-filled columns	144	169	183	105	205	97	135	30	61
	Field	2.96	4.66	6.49	4.42	3.42	2.87	3.45	1.07	2.13
Shoot DM (mg)	Gel chamber	6.79	6.01	6.58	5.82	6.84	5.47	7.45	0.61	1.21
	Soil-filled columns	471	507	545	387	460	315	422	80	160
	Field	8.97	8.45	8.15	10.67	9	7.76	8.59	2.01	3.98
Root:total plant ratio	Gel chamber	0.45	0.51	0.48	0.54	0.47	0.55	0.50	0.02	0.05
	Soil-filled columns	0.23	0.24	0.25	0.22	0.29	0.25	0.24	0.03	0.06
	Field	0.25	0.31	0.34	0.23	0.31	0.23	0.23	0.05	0.09