Oat Variety Trial 2019 Results

Oat Variety Trial 2019 Results (PDF)

Ellen Mallory and Tom Molloy, University of Maine Cooperative Extension

Maine typically grows 20,000-30,000 acres of oats per year, mostly for feed markets, however, demand for food grade oats is increasing. In 2019, we trialed 29 varieties of oats at two locations in Maine. All except one were sourced as food grade types, and 7 were free-threshing hulless or ‘naked’ types.

Table 1. Oat varieties evaluated in Old Town and Mapleton, Maine in 2019.
Variety Type Developer
AAC Nicolas Covered Secan
AAC Noranda Covered Semican
AAC Richmond Covered Semican
Antigo Covered Univ. of Wisconsin
Beach Covered North Dakota State University
Canmore Covered Semican
CDC Arborg Covered Semican
CDC Orrin Covered Semican
CDC Ruffian Covered Semican
Colt Covered North Dakota State University
CS Camden Covered Secan
Deon Covered Univ. of Minnesota
Hayden Covered South Dakota State University
Jury Covered North Dakota State University
Newburg Covered North Dakota State University
Orford Covered Semican
Reins Covered Univ. Illinois
Rockford Covered North Dakota State University
Shelby Covered South Dakota State University
Souris Covered North Dakota State University
Sumo Covered South Dakota State University
Casino Hulless Semican
Gehl Hulless Semican
Idaho Hulless Semican
Navaro Hulless Semican
Shadow Hulless Semican
12ANS01 Hulless Semican
15ANS06 Hulless Semican
Everleaf Covered, forage/cover crop Secan

METHODS

The trials were conducted at the University of Maine Rogers Research Farm, in Old Town, and Buck Farms, in Mapleton. The locations were managed using organic practices in Old Town and conventional practices in Mapleton. Agronomic practices for both locations are described in Table 2.

Table 2. Agronomic practices in Old Town and Mapleton, Maine in 2019.
Old Town Mapleton
Previous Crop Potato Potato
Soil Type Nicholville very fine sandy loam Caribou gravelly loam
pH 6.2 5.9
Pre-plant Fertility 16 tons/acre solid dairy manure (approx. 50 lb/acre of nitrogen) 225 lb/acre of 19-0-19 at planting (43 lb/acre of nitrogen)
Planting Date, Rate May 9, 1.25 million live seeds/acre May 24, 1.40 million live seeds/acre
Topdress Nitrogen June 4, 62 lb/acre Chilean nitrate (10 lb/acre of nitrogen) None
Weed Control May 31, cultivation and tine harrow June 9, MCPA Rhomene – 1 pt/acre
Fungicide None None
Harvest Date August 7 September 1

RESULTS

Monthly average weather conditions are presented in Table 3 and agronomic results in Table 4. For each column in Table 4, the greatest value is indicated with underlining and bold type. Varieties that are not significantly different from the greatest value are also in bold type. Each column also has at the bottom the site average, least significant difference (LSD), and coefficient of variation (CV). The LSD is the minimum difference needed between two varieties to consider them statistically different at a 95% confidence level. The CV measures the variability of the data, which influences how easy it is to detect difference among the varieties.

Table 3. Monthly rainfall totals and average temperatures in Old Town and Caribou in 2019.
† The weather station in Caribou is approximately 20 miles from the Mapleton site. 30-year norms are from 1981 to 2010.
Total Rainfall (inches) Temperature (F)
Old Town Caribou† Old Town Caribou†
Month 2019 30-yr avg. 2019 30-yr avg. 2019 30-yr avg. 2019 30-yr avg.
April 3.8 3.8 4.8 2.5 41 41 38 39
May 3.0 3.8 3.2 3.4 49 53 49 52
June 3.6 4.1 2.9 3.4 60 62 60 61
July 1.9 3.6 2.5 3.7 69 67 69 66
August 6.4 3.3 2.5 3.7 65 66 65 64
Total 18.8 18.6 15.9 16.7
Table 4. Agronomic characteristics of oat varieties grown in Old Town and Mapleton in 2019.
† Yield is reported at 13.5% moisture.
‡ Measured at time of harvest.
§ Scored visually using a scale from 1 = none to 9 = severe.
† Thousand kernel weight.
* Forage type
Yield†
(bu/acre)		 Grain Moisture‡
(%)		 Foliar Disease Severity
(1 – 9) §		 Plant Ht.
(in)		 Test Wt.
(lbs/bu)		 TKW†
(g)		 Heading date
(days after 5/31)
Variety
Old Town
Mapleton
Old Town
Mapleton
Old Town
Mapleton
Old Town
Mapleton
Old Town
Mapleton
Old Town
Mapleton
Old Town
Mapleton
Covered AAC Nicolas 105 91 13 – 2.3 – 35 – 36 36 33 32 44 –
AAC Noranda 120 89 14 – 2.0 – 41 – 36 36 36 34 41 –
AAC Richmond 95 76 15 – 2.0 – 36 – 37 37 36 39 42 –
Antigo 84 67 13 – 4.0 – 37 – 41 40 25 24 31 –
Beach 86 82 13 – 2.0 – 39 – 41 40 38 38 37 –
Canmore 85 89 12 – 2.3 – 42 – 36 39 33 36 39 –
CDC Arborg 94 87 13 – 2.0 – 38 – 37 38 37 35 42 –
CDC Orrin 102 91 13 – 2.7 – 41 – 38 38 35 37 39 –
CDC Ruffian 102 95 13 – 2.0 – 38 – 39 37 37 37 40 –
Colt 74 73 13 – 2.7 – 35 – 40 39 30 31 31 –
CS Camden 107 88 12 – 2.0 – 37 – 39 37 37 35 40 –
Deon 102 84 13 – 1.7 – 40 – 39 38 34 34 40 –
Hayden 109 76 13 – 2.0 – 45 – 42 39 37 35 36 –
Jury 109 95 13 – 2.3 – 39 – 38 39 33 37 40 –
Newburg 114 79 13 – 1.7 – 49 – 39 37 33 32 38 –
Orford 81 83 14 – 2.0 – 33 – 38 38 32 33 44 –
Reins 85 78 12 – 2.7 – 30 – 38 39 34 33 32 –
Rockford 97 72 13 – 2.3 – 41 – 41 39 31 28 40 –
Shelby 77 73 12 – 2.0 – 38 – 41 39 31 31 35 –
Souris 86 76 12 – 2.0 – 36 – 40 37 32 31 37 –
Sumo 90 69 12 – 3.0 – 39 – 42 39 37 36 31 –
Hulless Casino 63 61 14 – 2.3 – 38 – . . 26 28 43 –
Gehl 45 46 15 – 2.7 – 42 – . . 25 30 40 –
Idaho 59 56 14 – 2.3 – 38 – . . 27 29 42 –
Navaro 68 55 15 – 2.0 – 36 – . . 29 28 43 –
Shadow 58 51 14 – 2.3 – 38 – . . 24 31 43 –
12ANS01 47 56 14 – 2.0 – 37 – . . 28 27 41 –
15ANS06 65 46 14 – 2.0 – 39 – . . 28 26 42 –
Everleaf* 77 64 35 – 2.0 – . – 33 34 28 30 50 –
Site average 86 74 14 – 2 – 38 – 39 38 32 32 39 –
LSD (0.05) 24 10 1.4 – 1 – 5 – 2 1 2 2 2 –
CV% 29 21 30 – 30 – 12 – 7 4 14 12 11 –

Updated March, 2020

This project was funded in part by USDA OREI grant program award number 2015-51300-24153 and Hatch Award number ME021815.

Information in this publication is provided purely for educational purposes. No responsibility is assumed for any problems associated with the use of products or services mentioned. No endorsement of products or companies is intended, nor is criticism of unnamed products or companies implied.

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