Estimation of Blast Severity on Rye and Triticale Spikes by Digital Image Analysis

Table 2

Blast severity and the area under the disease progress curve (AUDPC) on rye and triticale spikes assessed visually and by analysis of digital images.

SIS method		SCU method		Visual assessment		AUDPC
11	70.00^a	6	71.33^a	11	81.67^a	11	219.33^a
9	66.69^ab	9	71.07^a	18	79.00^a	1	171.07^ab
15	63.47^ab	11	65.60^ab	15	71.20^ab	18	148.80^abc
4	63.47^ab	16	61.57^ab	1	66.67^ab	2	138.67^abc
12	61.36^ab	22	59.20^ab	10	61.67^ab	10	127.53^abc
3	60.32^ab	18	56.73^ab	20	58.67^ab	6	123.20^abc
5	60.32^ab	4	56.20^ab	19	56.33^ab	20	109.60^abc
22	58.78^abc	15	55.40^ab	14	54.73^ab	8	109.20^abc
7	57.76^abc	3	54.37^ab	16	53.33^ab	19	107.67^abc
6	56.25^abc	5	53.70^ab	17	53.07^ab	15	105.07^abc
16	55.25^abc	12	52.67^ab	26	52.33^ab	14	103.87^abc
14	54.76^abc	7	50.87^ab	2	52.00^ab	16	103.07^abc
17	54.76^abc	1	48.80^ab	8	50.67^ab	9	97.93^abc
18	54.76^abc	14	48.67^ab	9	48.67^ab	3	92.87^abc
21	53.78^abc	8	47.77^ab	3	48.47^ab	17	91.40^abc
1	52.32^abc	21	46.50^ab	6	47.53^ab	12	80.53^abc
8	48.53^abc	13	44.97^ab	13	42.53^ab	26	80.20^abc
10	47.61^abc	17	44.70^ab	27	41.53^ab	13	73.20^abc
2	46.24^abc	20	42.47^ab	22	39.20^ab	27	73.00^abc
13	44.00^abc	10	42.23^ab	4	37.73^ab	22	71.00^abc
26	43.12^abc	26	41.43^ab	24	37.20^ab	4	62.40^abc
20	42.68^abc	19	40.63^ab	12	37.07^ab	24	62.33^abc
19	40.96^abc	2	39.77^ab	5	35.60^ab	5	60.47^abc
25	40.53^bc	25	26.67^ab	7	33.40^ab	21	60.27^abc
24	39.69^bc	27	26.67^ab	21	27.20^ab	7	46.13^bc
27	39.27^bc	24	26.53^ab	25	23.33^ab	23	30.00^c
23	29.88^c	23	13.53^b	23	14.67^b	25	29.70^c
Mean	51.63		47.78		48.35		95.50
CV (%)^c	11.93		25.63		29.13		21.84

aThe numbers in the first column of each assessment method refer to the genotypes listed in Table 1.
bIn each column, means followed by the same letter are not significantly different at 𝑃<0.05.
cCV values were obtained from performed ANOVA with transformed data.
SCU: selection of symptomatic areas with mouse cursor; SIS: selection of symptomatic areas by image segmentation.