Table 1.

Differential responses of lines for eight traits in high N and low N environments in the maturity assay. The average, range, and repeatability of each trait was presented for each line. The significance of line, N treatment, and the line × N treatment interaction (L × T).

	Days to Heading (#)		Plant Height (cm)		Shoot Dry Matter (g)		Root-Shoot (g/g)		Root Dry Matter(g)		Yield (g)		Kernel Number (#)		Grain N Concentration (g N/g DM)
	High N	Low N	High N	Low N	High N	Low N	High N	Low N	High N	Low N	High N	Low N	High N	Low N	High N	Low N
Opata	39	40	57.9	63.2	1.74	1.80	0.16	0.09	0.27	0.15	1.82	2.26	43	59	56.7	57.6
PI 189823	38	38	101.4	97.5	2.42	2.39	0.08	0.04	0.20	0.09	1.94	2.13	53	58	69.1	59.9
PI 245427	44	51	77.0	94.9	1.67	2.57	0.26	0.32	0.47	0.91	1.85	2.42	37	55	51.4	48.9
PI 519677	35	36	47.9	53.9	0.98	1.03	0.12	0.11	0.12	0.12	1.73	1.92	56	62	47.2	48.0
PI 542457	62	64	100.8	94.6	5.08	4.10	0.32	0.34	1.66	1.39	2.28	1.86	107	93	61.1	39.1
PI 626655	57	60	102.9	100.7	5.50	4.34	0.33	0.35	1.81	1.56	3.17	2.69	141	112	70.2	57.5
PI 94379	53	57	105.4	104.6	4.25	3.36	0.25	0.18	1.06	0.62	2.55	2.15	67	55	63.4	49.1
Average	46	49	84.5	86.8	3.07	2.77	0.21	0.2	0.78	0.68	2.2	2.2	72.06	69.78	59.9	51.4
Range	35–62	36–64	47.9–105.4	53.9–104.6	0.98–5.49	1.03–4.34	0.08–0.33	0.03–0.35	0.12–1.81	0.09–1.56	1.73–3.17	1.86–2.69	37–141	55–112	47.2–70.2	39.1–59.9
Repeatability	86.79%	77.18%	83.08%	85.13%	85.76%	73.87%	50.20%	62.86%	69.74%	72.41%	25.24%	3.01%	73.87%	49.35%	87.13%	95.45%
Line	***		***		***		***		***		ns		***		***
N Treatment	ns		ns		ns		.		ns		ns		ns		*
L * T	ns		*		**		ns		ns		ns		ns		**

p value significance of as follows: *** < 0.001; 0.001 < ** < 0.01; 0.01 < * < 0.05; 0.05 < . < 0.1; ns > 0.1.