Table 3.

Correlation matrix for ear (E) traits in 2006; data from water stress plots (lower left) and well-watered plots (upper right) of 350 maize inbreds

	E_DW	E_Glc	E_Tsug	E_Suc	E_Fsuc	E_Str	E_Pro	E_ABA	E_ABA-GE	E_PA	S_DW
E_DW		–0.36	–0.71	–0.65	–0.48	–0.04	–0.03	–0.36	–0.46	–0.43	0.63
E_Glc	–0.23		0.61	0.10	–0.39	–0.22	0.13	0.27	0.24	0.23	–0.22
E_Tsug	–0.61	0.63		0.79	0.36	–0.04	0.10	0.24	0.33	0.32	–0.50
E_Suc	–0.61	0.08	0.80		0.80	0.15	0.01	0.13	0.27	0.26	–0.50
E_Fsuc	–0.39	–0.56	0.22	0.70		0.32	–0.11	0.05	0.17	0.15	–0.41
E_Str	0.29	–0.48	–0.35	–0.09	0.27		–0.45	–0.28	–0.15	–0.17	0.07
E_Pro	–0.33	0.33	0.34	0.19	–0.09	–0.52		0.20	0.09	0.09	–0.17
E_ABA	–0.61	0.25	0.45	0.39	0.18	–0.42	0.40		0.74	0.48	–0.39
E_ABA-GE	–0.64	0.32	0.53	0.45	0.17	–0.48	0.46	0.66		0.44	–0.44
E_PA	–0.49	0.07	0.23	0.25	0.19	–0.23	0.17	0.47	0.40		–0.32
S_DW	0.53	–0.27	–0.40	–0.31	–0.08	0.33	–0.37	–0.39	–0.48	–0.28

Shown are Pearson's correlation coefficients for average of plots sampled 0 d and 7 d after anthesis. Values < –0.18 or > +0.18 are significant at P ≤ 0.001. Values < –0.40 or >0.40 are in bold. Also shown is silk (S) dry weight.

ABA, abscisic acid; ABA-GE, ABA-glucose ester; DW, dry weight; Fsuc, fraction of sugar as sucrose; Glc, glucose; PA, phaseic acid; Pro, proline; Str, starch; Suc, sucrose; Tsug, total sugar.