Table 1.

Main characteristics of the whole set of samples.

	Growth condition	Field				Tunnel						TOTAL (n= 2427)
	Growth season	2014–2015		2015–2016		2014–2015		2015–2016		2016–2017
	Nutrition regimea	N-	N+	N-	N+	N-	N+	W-	W+	W-	W+
Tissues	Roots	13	13	10	12	228	238	48	36	30	10	638
	Leaves	222	236	16	18	115	124	0	0	30	10	771
	Stems	142	137	11	12	92	111	48	36	30	10	629
	Flowers	0	0	0	0	11	21	0	0	0	0	32
	Pods	0	0	0	0	133	148	24	12	30	10	357

^aPlants were grown under optimal (+) or suboptimal (-) conditions of nitrogen nutrition (N) or watering (W) as described in the experimental design.