Varieties Omitted from Grain Yield Comparison

An article in the March, 2003 Prairie Grains (pages 41-42) compared the disease reactions and agronomic characteristics of 17 spring wheat varieties in two tables.  A third grain yield table listed 12 varieties, inadvertently omitting five varieties included in the first two tables.  The following table offers a more complete grain yield performance evaluation (as percentage above or below the mean) of spring wheat varieties at the University of Minnesota last year and over the past three years (2000-2002). Wheat producers should weigh yield performance potential with disease resistance, quality performance, and agronomic characteristics best suited to their farms and growing conditions.

	State			North 2			South 3			On-Farm 4
	1 yr	2 yr	3 yr	1 yr	2 yr	3 yr	1 yr	2 yr	3 yr	1 yr	2 y	3 yr
Variety1	% of mean
No. Envir.	6	13	20	2	5	8	4	8	12	7	14	22
Ingot	95	96	96	90	96	95	98	96	96	92	96	97
Forge	87	93	93	83	91	91	90	95	94	—	—	—
Walworth	105	106	107	105	107	103	105	106	110	107	107	—
Briggs	102	—	—	106	—	—	100	—	—	109	—	—
Oxen	107	108	107	97	101	102	113	112	111	109	108	105
2375	89	97	97	92	100	100	87	96	95	97	99	99
Mercury	109	111	110	115	113	111	105	109	109	113	109	109
McKenzie	93	91	91	113	101	97	82	85	88	—	—	—
Reeder	103	107	105	100	107	105	105	106	105	103	103	103
Dandy	108	106	106	102	105	105	112	107	106	108	106	104
Parshall	93	94	94	95	99	98	91	91	92	92	93	93
Alsen	94	96	97	106	103	98	87	92	96	105	100	96
Knudson	105	105	—	104	103	—	106	106	—	123	—	—
Russ	97	100	102	93	95	99	99	104	104	98	98	98
Keystone	95	96	—	100	98	—	92	95	—	—	—	—
NorPro	103	107	105	96	96	100	108	113	109	99	102	105
Hanna	87	90	—	98	97	—	80	85	—	85	—	—
HJ98	101	101	101	103	95	101	100	104	102	103	99	104
Gunner	74	85	82	72	84	85	75	85	81	78	86	86
Marshall	86	93	93	81	87	93	89	97	93	86	01	96
Verde	97	99	101	102	99	101	94	99	101	110	102	102
Ivan	101	104	103	110	107	107	96	102	101	107	103	106
Granite	97	—	—	87	—	—	102	—	—	98	—	—
LSD (0.05)	6	5	4	8	8	6	8	6	5	12	8	6
Mean(bu/A) 5	49	53	55	55	54	56	46	54	56	46	53	60
1 Varieties are listed from earliest to latest heading date. 2 North 2002 includes Crookston and Stephen; 2 yr. includes 2001 and 2002 Crookston and Stephen plus 2001 Roseau; 3 yr. includes 2000, 2001, and 2002 Crookston and Stephen and 2000 and 2001 Roseau. 3 Mean of Lamberton, Morris, St. Paul, and Waseca. 4 Results of the Red River Valley On Farm Yield Trials. 5 Mean is calculated using all entries in the respective trial, including experimental lines.  Therefore, the average yield of varieties within a column may be greater or less than 100%.