2023 Phytophthora Tolerance Test Results

Ontario Phytophthora Tolerance Test 2023: Woodslee, Ontario

This Report Contains Published Registered Varieties Only.

Planting Date: June 19, 2023

Stand Count Dates:

HUZ	Date
2200 & 2400	August 31, 2023
2600	September 2, 2021
2800	September 2, 2021
3100 & 3400	October 10, 2023

Plot Size: Single row, 50 seeds/row

Replications: 4, randomized blocks

Phytophthora root rot testing is carried out on clay soils infested with common races of Phytophthora at Woodslee. Phytophthora Root Rot (PRR) ratings were changed starting in 2019. Previous methodology used counting plants shortly after emergence (3-4 weeks after planting) and a subsequent counting 4 weeks later. The loss was estimated based on the difference between count 2 and count 1, taken as a percentage. The limitation in this counting method is that it does not take into account pre-emergence mortality due to PRR nor does it take into account late season mortality. Starting in 2019 we began expressing the PRR ratings based on final stand in a High phytophthora pressure environment. This final stand was only rated once for all maturity groups and this was again changed to rate the plants near the R6 growth stage which was done in 2020 in order to capture late season PRR damage.

2023 Phytophthora Tolerance Test MG00E & MG00 (2200/2400)

Entry	Name		Final Stand/50 Plants	% Stand	% Loss
2	ABACA		34.25	68.5	31.5
3	Amino R2X		33.00	66.0	34.0
4	Atiron		33.00	66.0	34.0
5	B0073EE		38.50	77.0	23.0
6	Bourke R2X		36.50	73.0	27.0
7	Bronco R2X		34.25	68.5	31.5
10	Donaldo R2X		32.25	64.5	35.5
11	Elmo E3		34.25	68.5	31.5
13	Fresco R2X		7.00	14.0	86.0
14	Hana		27.75	55.5	44.5
15	Hart R2X		36.75	73.5	26.5
16	JAGO		37.75	75.5	24.5
17	Koa		29.25	58.5	41.5
18	Kudo R2X		27.75	55.5	44.5
19	Liska		32.25	64.5	35.5
20	Maya		34.00	68.0	32.0
21	Merino R2X		30.25	60.5	39.5
22	Mozart		26.25	52.5	47.5
32	P002A42E		25.00	50.0	50.0
33	P005A59E		31.25	62.5	37.5
34	Nala		27.50	55.0	45.0
41	PR229001Z		24.00	48.0	52.0
42	PR23X2650		28.25	56.5	43.5
43	PRO 03X74		31.00	62.0	38.0
44	PS 0072 XR		39.50	79.0	21.0
45	PS 0098 XR		38.50	77.0	23.0
46	Rico R2X		38.00	76.0	24.0
47	Salto R2		35.25	70.5	29.5
48	Siberia		21.00	42.0	58.0
50	Enduro E3		43.00	86.0	14.0
53	SI 00723XFN		34.25	68.5	31.5
56	Triquet R2X		24.25	48.5	51.5
57	Utica		32.75	65.5	34.5
58	Verso R2X		32.50	65.0	35.0
59	Young R2X		32.50	65.0	35.0
60	P007A68E		treated seed*
61	Sloan	check – low field tolerance, rps	10.50	21.0	79.0
62	Conrad	check – high field tolerance, rps	28.75	57.5	42.5
63	Williams	check – moderate field tolerance, rps	29.75	59.5	40.5
64	OX20-8	check – no field tolerance, Rps 1a	0.75	1.5	98.5
65	Haro(1-7)1	check – minimal field tolerance, rps	11.50	23.0	77.0
		Mean of Entries	31.74
		CV	31.80

2023 Phytophthora Tolerance Test MG0 (2600)

Entry	Name		Final Stand	% Stand	% Loss
1	Stine 05EG62		35.50	71.0	29.0
2	Stine 06EG29		38.00	76.0	24.0
3	AAC Kovik		33.00	66.0	34.0
4	AAC Shinju		32.50	65.0	35.0
6	Acardia		34.25	68.5	31.5
7	Acora		35.75	71.5	28.5
8	Acuna		32.00	64.0	36.0
9	Altitude R2		16.25	32.5	67.5
11	Angelica		34.75	69.5	30.5
12	Apollina		37.00	74.0	26.0
13	Asahi		29.75	59.5	40.5
14	Asana		30.25	60.5	39.5
15	Atacama		32.50	65.0	35.0
16	Atena		37.75	75.5	24.5
17	Aurelina		27.50	55.0	45.0
18	Axis E3		MV*	MV*
19	Aya		32.25	64.5	35.5
20	B036CE		37.00	74.0	26.0
21	B043EE		31.25	62.5	37.5
22	B074HE		42.75	85.5	14.5
23	Beliveau R2X		34.50	69.0	31.0
24	Canstar		43.00	86.0	14.0
34	Dyno R2X		41.50	83.0	17.0
35	Elico E3		37.75	75.5	24.5
36	Emilio E3		29.25	58.5	41.5
37	Enyo E3		44.75	89.5	10.5
38	PS 0423EN		38.50	77.0	23.0
39	Ezra		35.50	71.0	29.0
40	Genesis		26.75	53.5	46.5
41	Haltifo		33.75	67.5	32.5
42	Harvey E3		36.50	73.0	27.0
43	Havane		30.00	60.0	40.0
45	Hola		29.50	59.0	41.0
46	Kagawa		37.50	75.0	25.0
47	Kristian		40.75	81.5	18.5
48	Kyoto		26.25	52.5	47.5
49	Malart		42.00	84.0	16.0
50	Marula		35.75	71.5	28.5
51	MONDO		41.00	82.0	18.0
52	Mya		32.25	64.5	35.5
54	Nano R2X		34.00	68.0	32.0
55	Navan		35.75	71.5	28.5
63	OAC Acclaim		34.25	68.5	31.5
64	OAC Bruno		27.25	54.5	45.5
65	OAC Carson		31.50	63.0	37.0
66	OAC Champion		25.75	51.5	48.5
67	OAC Elevation		12.25	24.5	75.5
68	OAC Evolution		33.50	67.0	33.0
69	OAC Kamran		32.75	65.5	34.5
70	OAC Strive		33.75	67.5	32.5
71	OAC Wallace		33.75	67.5	32.5
72	Orr R2X		40.25	80.5	19.5
96	P04A98E		30.25	60.5	39.5
98	P06A38E		29.50	59.0	41.0
101	P08A44E		37.25	74.5	25.5
102	Panorama		26.75	53.5	46.5
103	Park E3		34.00	68.0	32.0
104	Pico R2X		35.00	70.0	30.0
105	Katano		30.50	61.0	39.0
112	PS 0322 EN		36.75	73.5	26.5
113	PS 0420 XRN		23.25	46.5	53.5
114	PS 0521 XRN		39.50	79.0	21.0
115	PS 0779 XRN		34.25	68.5	31.5
116	PS 0944 XRN		38.75	77.5	22.5
117	Ramage XF		37.00	74.0	26.0
118	Reece R2X		28.75	57.5	42.5
119	RICHMOND		14.25	28.5	71.5
120	Samson E3		28.25	56.5	43.5
121	Savage R2X		35.75	71.5	28.5
122	Mason XF		20.25	40.5	59.5
123	Sharp E3		28.75	57.5	42.5
124	Ridley XF		31.00	62.0	38.0
125	Seabrook R2X		32.50	65.0	35.0
130	SI 0620XTN		34.25	68.5	31.5
131	SI 0720E3N		37.25	74.5	25.5
132	SI 0921XTN		27.25	54.5	45.5
136	SI 0323E3N		33.00	66.0	34.0
148	Vertigo R2		37.50	75.0	25.0
149	Sloan	check – low field tolerance, rps	13.00	26.0	74.0
150	Conrad	check – high field tolerance, rps	34.00	68.0	32.0
151	Williams	check – moderate field tolerance, rps	29.25	58.5	41.5
152	OX20-8	check – no field tolerance, Rps 1a	0.50	1.0	99.0
153	Haro(1-7)1	check – minimal field tolerance, rps	7.50	15.0	85.0
		Mean of Entries	32.35
		CV	29.82

2023 Phytophthora Tolerance Test MG1 (2800)

Entry	Name		Final Stand	% Stand	% Loss
1	Stine 10EG20		35.50	71.0	29.0
2	Stine 12EB32		37.50	75.0	25.0
3	Alinova		36.75	73.5	26.5
4	B103EE		41.75	83.5	16.5
5	B119KE		37.25	74.5	25.5
6	B158DE		43.75	87.5	12.5
7	B163EE		26.25	52.5	47.5
8	B173EE		41.50	83.0	17.0
9	B182ME		40.75	81.5	18.5
10	Baltazar		44.50	89.0	11.0
11	Barton		40.75	81.5	18.5
13	Compass E3		MV**	MV**
15	EXP1123XFN		36.50	73.0	27.0
16	Finch		39.75	79.5	20.5
17	Forto		39.50	79.0	21.0
18	Inwood		37.00	74.0	26.0
19	Keith XF		42.00	84.0	16.0
20	Matilda		31.00	62.0	38.0
21	Miko R2		32.75	65.5	34.5
31	OAC Aberdeen		39.00	78.0	22.0
32	OAC Malory		43.75	87.5	12.5
33	OAC Union		40.00	80.0	20.0
34	Odessa		33.75	67.5	32.5
35	P11A10		26.00	52.0	48.0
36	P12T94E		35.25	70.5	29.5
38	P14A12E		19.50	39.0	61.0
40	P17A87E		32.25	64.5	35.5
41	P18A73E		34.00	68.0	32.0
42	P19A37E		38.00	76.0	24.0
46	Mercado XF		37.50	75.0	25.0
48	PS 1022 EN		35.00	70.0	30.0
49	PS 1421 EN		34.75	69.5	30.5
50	PS 1520 XRN		36.25	72.5	27.5
51	PS 1721 EN		40.50	81.0	19.0
52	Rask E3		40.75	81.5	18.5
53	Rondo R2X		43.25	86.5	13.5
54	Savard E3		38.25	76.5	23.5
61	Elliott R2X		30.00	60.0	40.0
67	SI 1120E3N		37.50	75.0	25.0
68	SI 1222E3N		33.75	67.5	32.5
69	SI 1422XTN		26.00	52.0	48.0
70	SI 1820XTN		38.50	77.0	23.0
71	Skyline		37.25	74.5	25.5
72	Summit E3		42.00	84.0	16.0
78	SI 1323XFN		34.75	69.5	30.5
79	SI 1823E3N		32.75	65.5	34.5
82	Haldi		34.25	68.5	31.5
89	Taku		38.75	77.5	22.5
90	Wilma		42.50	85.0	15.0
91	Zeta		37.50	75.0	25.0
92	HDC Blake		treated seed*
93	S14-H3		treated seed*
94	Sloan	check – low field tolerance, rps	13.00	26.0	74.0
95	Conrad	check – high field tolerance, rps	36.25	72.5	27.5
96	Williams	check – moderate field tolerance, rps	31.50	63.0	37.0
97	OX20-8	check – no field tolerance, Rps 1a	1.50	3.0	97.0
98	Haro(1-7)1	check – minimal field tolerance, rps	14.50	29.0	71.0
		Mean of Entries	36.48
		CV	26.65

2023 Phytophthora Tolerance Test MG2E & MG2L (3100/3400)

Entry	Name		Final Stand	% Stand	% Loss
2	Stine 20EG02		43.50	87.0	13.0
3	Stine 25EG20		36.00	72.0	28.0
4	AAC 26-15		44.50	89.0	11.0
5	AAC Big Ben		44.50	89.0	11.0
6	AAC Wigle		36.25	72.5	27.5
8	B213EE		41.25	82.5	17.5
9	B243EE		41.00	82.0	18.0
10	B253LE		39.75	79.5	20.5
13	PS 1923XFN		36.50	73.0	27.0
14	Express R2X		38.75	77.5	22.5
15	Masters XF		34.75	69.5	30.5
19	OAC Bruton		38.25	76.5	23.5
20	OAC Kent		43.75	87.5	12.5
21	OAC Marvel		41.50	83.0	17.0
22	OAC Stirling		46.25	92.5	7.5
23	P20A48E		40.50	81.0	19.0
25	P22A67E		28.50	57.0	43.0
26	P24A07E		42.25	84.5	15.5
27	PS 2120 EN		42.25	84.5	15.5
28	PS 2322 XFN		41.25	82.5	17.5
29	PS 2521 XFN		45.75	91.5	8.5
30	Rowan		41.50	83.0	17.0
37	Kraft E3		43.50	87.0	13.0
38	Lawson R2X		40.75	81.5	18.5
39	SG 2311		42.25	84.5	15.5
40	SI 2121XTN		41.00	82.0	18.0
43	Tillson		40.00	80.0	20.0
44	Siena		38.50	77.0	23.0
47	Stine 29EF02		40.00	80.0	20.0
48	Stine 31EF02		37.50	75.0	25.0
50	Darby E3		44.25	88.5	11.5
51	PS 2923EN		43.25	86.5	13.5
54	P28A65E		35.75	71.5	28.5
55	P29A19E		40.00	80.0	20.0
56	P30A75E		39.50	79.0	21.0
57	P33A62E		35.00	70.0	30.0
58	PS 3022XFN		48.50	97.0	3.0
61	AAC McRae		treated seed*
62	B283EE		treated seed*
63	DF 155		treated seed*
64	HDC Blake		treated seed*
65	Sloan	check – low field tolerance, rps	16.75	33.5	66.5
66	Conrad	check – high field tolerance, rps	35.25	70.5	29.5
67	Williams	check – moderate field tolerance, rps	36.00	72.0	28.0
68	OX20-8	check – no field tolerance, Rps 1a	0.00	0.0	100.0
69	Haro(1-7)1	check – minimal field tolerance, rps	19.50	39.0	61.0
		Mean of Entries	39.58
		CV	21.57