Table 1.

Confusion matrices of the LDA model in training and testing sets using reflectance data of black oat seeds obtained at 19 wavelengths (365 to 970 nm) for class membership of non-inoculated (NI) and inoculated seeds (I) with Drechslera avenae (Eidam) Sharif for 24, 72 and 120 h.

Treatment1	Training Set (n = 480)
	NIa	I.b 24 h	I. 72 h	I. 120 h	% correct
NI	98	18	3	1	81.67
I. 24 h	16	93	11	0	77.50
I. 72 h	7	11	93	9	77.50
I. 120 h	5	3	11	101	84.17
Overall Accuracy	0.80
Kappa	0.74
Treatment	Testing Set (n = 320)
	NIa	I.b 24 h	I. 72 h	I. 120 h	% correct
NI	58	19	2	1	72.50
I. 24 h	22	41	15	2	51.25
I. 72 h	3	6	66	5	82.50
I. 120 h	1	2	8	69	86.25
Overall Accuracy	0.73
Kappa	0.64

¹ In the rows are the true seed classes, and in the columns are the estimated classes. ^a NI: non-inoculatedseeds; ^b I: seeds inoculated with Drechslera avenae (Eidam) Sharif.