Table 1.

Field sites, sowing and harvest dates of the winter oat trials grown across the UK over four harvest years (2011–2014) and environmental conditions during those trials including total rainfall (mm) in the periods specified and mean air temperatures for March and July.

Environment	Site	Latitude (N, °.′)	Longitude (E, °.′)	Sowing Date	Harvest Date	Rainfall Dec to April (mm)	Rainfall June + July (mm)	Mean March Temperature (°C)	Mean July Temperature (°C)
1	Gogerddan	52.43	−4.02	28/09/11	09/08/12	387	273	8.0	13.9
2	Gogerddan	52.43	−4.02	23/10/12	18/08/13	426	91	2.9	16.6
3	Gogerddan	52.43	−4.02	25/09/13	24/07/14	574	96	6.8	15.7
4	Lydbury	52.45	−2.94	30/09/11	22/08/12	270	211	7.9	14.3
5	Lydbury	52.45	−2.94	08/10/13	20/08/14	316	84	6.4	16.2
6	Bidney	52.20	−2.87	15/10/10	17/08/11	145	105	6.1	14.4
7	Rosemaund	52.08	−2.39	06/10/11	05/09/12	325	249	8.1	14.8
8	Rosemaund	51.97	−2.62	06/02/13	03/09/13		56	2.4	17.9
9	Rosemaund	51.98	−2.60	30/09/13	31/07/14	555	88	6.9	16.9
10	ADAS Rosemaund	52.09	−2.39	28/09/10	13/08/11	149	93	6.6	15.0
11	ADAS Rosemaund	52.09	−2.39	27/09/11	06/09/12	325	249	8.1	14.8
12	ORC Elm Farm	52.36	1.35	19/10/10	03/08/11	131	126	6.4	15.3
13	ORC Elm Farm	52.36	1.35	12/10/11	22/08/12	275	168	8.1	16.0
14	ORC Elm Farm	52.36	1.35	16/10/12	24/08/13	292	35	2.7	17.6
15	Glenrothes	56.19	−3.11	28/09/11	24/08/12	205	260	7.0	12.5
16	Glenrothes	56.19	−3.11	02/10/12	14/08/13	317	90	1.4	15.4
17	Glenrothes	56.19	−3.11	26/09/13	04/08/14	360	105	5.2	14.8
18	Devon	50.27	−3.76	03/10/11	28/08/12	420	275	9.0	15.0
19	Devon	50.27	−3.76	20/10/12	13/08/13	442	43	5.3	17.2
20	Devon	50.27	−3.76	07/10/13	31/07/14	565	120	8.3	17.2
21	Essex	51.58	0.41	06/10/11	16/08/12	218	193	8.5	16.0
22	Essex	51.58	0.41	05/10/13	22/07/14	232	94	8.0	17.7