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FrostProof

FrostProof

Diploid Annual Ryegrass

Cold hardy, high yielding diploid ryegrass

A recent release from the University of Florida, FrostProof is an improved ryegrass that handles cold weather and provides superior forage production.

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Features

Cold Hardy

Specifically bred for improved cold tolerance, FrostProof has many potential uses for both southern and northern regions.

Disease Resistant

FrostProof’s better crown rust resistance allows it to keep producing in tough conditions.

High Yielding

This dependable diploid provides high yields for grazing, hay, haylage, baleage and silage.

Uses

Grazing

Yes. Yes. And YES! Graze it with all livestock species. FrostProof is a great option for both rotational grazed and continuous grazed pastures. As is true with other ryegrasses, continuous grazing can adversely affect yield and survivability. If possible, always choose rotational grazing practices.

Hay and Silage

Looking for a single-cut harvest? No problem. Bale it, roll it, wrap it, or chop it. Then feed it as needed. Good cold and disease resistance equals more quality feed in the bag.

Wildlife

Draw in the big racks or grow the herd for next year. FrostProof comes up quick and is ryegrass-sweet; ideal for wildlife food plots.

Cover Crop

Need a cover crop to go through winter? FrostProof is up for the challenge. Grab that excess nitrogen, break up your hard soil, build the carbon bank. High tonnage means lots and lots of biomass. Use by itself or as part of a multi-species cover crop mixture.

History Bred for Cold Told Tolerance

FrostProof is the result of a multi-location breeding process including cycling germplasm at the Noble Foundation in Ardmore, OK, selections in Scottsbluff, NE, as well as germplasm from selection in North Carolina and Florida. FrostProof has been evaluated extensively for over ten years before being released to the marketplace.

Regional Performance Good for the North and the South

In the South

Resists Cold Winters and Disease Pressures

Southerners need ryegrass that can perform well under grazing and also be resistant to cold snaps and disease. During the winter of 2016-17, North-Central Florida experienced nine separate freezing events with the coldest temperature of 25°F on March 16, followed by a high temperature of 88°F on March 22 and 92.5°F on April 2. Crown rust was also a significant disease that "became epidemic" by early March. FrostProof's ability to resist crown rust gave it the ability to continue to produce high yields. Even under these tough conditions, FrostProof was one of the highest performing entries with excellent early season yields, as well as overall forage yields.

University of Florida

Forage Yields (DM/A)

Gainesville, FL – 2016–2017

Entry Jan. 12 Feb. 28 Apr. 26 Total
Highest Yield 4922* 4612* 3200* 11681*
FrostProof 4764* 4211* 2200 11175*
Nick 4487* 4359* 2080 10926*
Jackson 4563* 3740* 2265 10568*
Nelson 4444* 3203 2610* 10257*
Marona 4708* 4114* 1007 9829*
Marshall 4389* 3307 2078 9774
Jumbo 4110* 3183 2030 9323
Marmid 3987 3956* 1007 8950
Tetrastar 4099* 3168 1454 8721
Arnie 4178* 3129 1273 8580
Vortex 3421 3430 1680 8531
Lonestar 3706 3160 829 7695
lowest yield 1854 1676 745 4484
LSD* (0.05) 833 912 806 1804
*Equal to top score based on LSD.
Complete results available upon request.

University of Florida

Crown Rust

Gainesville, FL – March 6, 2017

Entry Disease  level
Least disease 1.7*
Jumbo 2.3*
Nelson 2.7*
FrostProof 3.7*
Marmid 3.7*
Jackson 4.7
Arnie 5.3
Lowboy 5.3
Lonestar 6.0
Passerel Plus 6.0
Marshall 8.3
Greatest disease 8.3
LSD± (0.05) 2.1
Crown Rust Rating: 0 - 10, where 0 = no disease and 10 = 100% coverage or death. 
*Equal to top score based on LSD.

Dependable Diploid for Southern Hay, Pastures and Silage

What do we mean by dependable? When disease comes, it’s not knocked out. When there’s a cold snap, it’s not hammered. It can be grazed intensely, and still be there. FrostProof has been tested in numerous locations throughout the southern United States and has good yields. These tables are a sampling of some of the results.

Dry Matter Yields (Total DM/A)

2016–2017

Variety Tallassee, AL Headland, AL Crossville, AL Three location ave.
Highest Yield 4413* 4749 * 10326* 6496
FrostProof 3815* 4429* 8881* 5708
Nelson 3415* 4662* 8991 * 5689
TAMTBO 3815 * 3991* 8359* 5388
Wax Marshall 2978 4063 * 8815 * 5285
Diamond T 3283* 4315* 7941 5180
McKinley 3269* 3651* 8557 * 5159
Passarel Plus 4045* 2967 8202 5071
Double Diamond 3614* 4157* 7325 5032
Andes 3219* 3432 8002 4884
Flying A 3103 4078* 7375 4852
Gulf (Local) 2836   6535 4686
Lowest Yield 2712 2618 6400 3910
LSD (0.1) 1200 960 2049  
*Yielded statistically the same as the top-yielding entry.

In the North

Good Performance for Forage and Cover Crop Use

FrostProof has been tested in multiple northern locations for use as a short-term spring forage crop and as a cover crop. Data from Kentucky indicates FrostProof has high forage yield potential. Data from Ohio shows that FrostProof is very cold tolerant.

University of Kentucky

Forage Yield Trials

Lexington, KY – 2016–2017

Variety Height (inches) Yield (Tons DM/A)
    4/18 5/18 6/20 Total
Highest score 21 2.00* 1.54* 0.66* 3.69*
FrostProof 21 1.91* 1.14 0.23 3.28*
TetraPrime 14 1.20 1.54* 0.36 3.11
Gulf 21 1.77 0.94 0.27 2.98
Bruiser 21 1.86* 0.92 0.19 2.96
Feast II 12 1.21 1.19 0.35 2.75
Lsd 2 0.22 0.32 0.19 0.43
*Equal to top score based on LSD
Planted Sept 7, 2016

Ohio State University

Cover Crop Variety Trial

South Charleston, OH – 2017–2018

Entry % Winterkill 3/26/18 Yield (Total DM/A)
LowBoy 5 0.68
FrostProof 9 2.40
Koga 10 1.79
Kodiak 13 2.16
Winterhawk 13 2.17
McKinley 16 1.65
New Dawn 18 1.74
Sheriff 28 1.45
LSD P=.05 11.73 0.52

Yield Data

University of Florida

Forage Yields (DM/A)

Gainesville, FL – 2016–2017

Variety Jan. 12 Feb. 28 Apr. 26 Total
Highest Yield 4922* 4612* 3200* 11681*
FrostProof 4764* 4211* 2200 11175*
Nick 4487* 4359* 2080 10926*
Jackson 4563* 3740* 2265 10568*
Nelson 4444* 3203 2610* 10257*
Marona 4708* 4114* 1007 9829*
Marshall 4389* 3307 2078 9774
Jumbo 4110* 3183 2030 9323
Marmid 3987 3956* 1007 8950
Tetrastar 4099* 3168 1454 8721
Arnie 4178* 3129 1273 8580
Vortex 3421 3430 1680 8531
Lonestar 3706 3160 829 7695
lowest yield 1854 1676 745 4484
LSD* (0.05) 833 912 806 1804
*Equal to top score based on LSD.
Complete results available upon request.

Louisiana State University

Annual Ryegrass Trials (Total DM/A)

2017–2018

Variety Franklinton Winnsboro Two location 
Highest yield 8746* 7886*  
FrostProof 7619* 7490* 15109
Andes 7782* 7069 14851
Winterhawk 7436 7405* 14841
Jumbo 7613* 7155* 14768
Prine 7685* 6948 14633
Double Diamond 7726* 6881 14607
Flying A 7514 7054 14568
Diamond T 7273 7011 14284
McKinley 6324 7886* 14210
Ribeye 7175 6991 14166
Nelson Tetraploid 6845 7202* 14047
Triangle T 7020 7007 14027
Gulf Certified 6884 7066 13950
Lagniappe 7165 6653 13818
Spicer 6811 7003 13814
Grits 7018 6778 13796
Jackson 6587 7194* 13781
Herdsman 7218 6423 13641
Earlyploid 6964 6435 13399
Passerel Plus 6910 6489 13399
Angusta 6175 6718 12893
lowest yield 5492 5882  
LSD (.1) 1200 774  
*Equal to top score based on LSD.
Complete results available upon request.

Dry Matter Yields (Total DM/A)

Headland, AL – 2016–2017

Variety Yield (Total DM/A)
Highest Yield 4749 *
FrostProof 4429*
Nelson 4662*
TAMTBO 3991*
Wax Marshall 4063 *
Diamond T 4315*
McKinley 3651*
Passarel Plus 2967
Double Diamond 4157*
Andes 3432
Flying A 4078*
Gulf (Local)  
Lowest Yield 2618
LSD (0.1) 960

Dry Matter Yields (Total DM/A)

Tallassee, AL – 2016–2017

Variety Yield (Total DM/A)
Highest Yield 4413*
FrostProof 3815*
Nelson 3415*
TAMTBO 3815 *
Wax Marshall 2978
Diamond T 3283*
McKinley 3269*
Passarel Plus 4045*
Double Diamond 3614*
Andes 3219*
Flying A 3103
Gulf (Local) 2836
Lowest Yield 2712
LSD (0.1) 1200

University of Tennessee

Forage Yield (Tons DM/A)

Crossville, TN – 2018

Variety Apr. 10 May 2 May 29 Total
Highest score 2.53 1.77* 1.77* 4.91*
Koga 1.88 1.07 1.77* 4.72*
FrostProof 1.59 1.46* 1.30 4.35*
Angusta 1.72 1.26* 1.25 4.24*
Kodiak 1.55 1.24 1.45 4.23*
Passerel Plus 1.47 1.50* 1.22 4.19*
Credence 1.56 1.30* 1.10 3.97
GRAZER 1.67 1.37* 0.93 3.97
Maximus 1.67 0.73 1.03 3.42
LSD ns¹ 0.52 0.31 1.04
*Yielded statistically the same as the top‐yielding variety.
¹Non‐significant at the 0.05 level.
Nitrogen application: 45 lb/acre at planting, 60 lb/acre at green‐up, 30 lb/acre after first harvest.

Dry Matter Yields (Tons DM/A)

Crossville, TN – 2016–2017

Variety Yield (Tons DM/A)
Highest Yield 5.95*
Kodiak 4.83
Nelson 4.64
FrostProof 4.47
Angusta 4.44
Credence 4.31
Vortex 4.28
McKinley 4.27
Winterhawk 4.27
Andes 4.23
Jackson 4.18
Arnie 3.78
LSD (0.1) 0.77

University of Kentucky

Forage Yield Trials

Lexington, KY – 2016–2017

Variety Height (inches) Yield (Tons DM/A)
    April 18 May 18 June 20 Total
Highest score 21 2.00* 1.54* 0.66* 3.69*
FrostProof 21 1.91* 1.14 0.23 3.28*
TetraPrime 14 1.20 1.54* 0.36 3.11
Gulf 21 1.77 0.94 0.27 2.98
Bruiser 21 1.86* 0.92 0.19 2.96
Feast II 12 1.21 1.19 0.35 2.75
Lsd 2 0.22 0.32 0.19 0.43
*Equal to top score based on LSD.
Planted Sept 7, 2016.

Ohio State University

Cover Crop Variety Trial

South Charleston, OH, – 2017–2018

Entry Yield (Tons DM/A)
FrostProof 2.40
Winterhawk 2.17
Kodiak 2.16
Koga 1.79
New Dawn 1.74
McKinley 1.65
Sheriff 1.45
LowBoy 0.68
LSD P=.05 0.52

Texas Trial Results (Six Harvests – Total DM/A)

Overton, TX – 2017–2018

Variety Total Season
Highest 12116*
FrostProof 10385*
Kodiak 10314*
Maximus 9869
Gulf 9803
TAMTBO 9566
Tetrastar 9301
Nelson 9125
Winterhawk 9009
Jackson 8693
Ribeye 8426
Passerel Plus 8016
TAM 90 7885
Prine 7628
Fria 7227
LSD (0.05) 2081
*Equal to top score based on LSD. 
Planted Oct 5, 2017.
Complete results available upon request.

Cornell University

Forage Yields (Tons DM/A)

Ithaca, NY – 2018

Variety August 2 October 25 2018 Total
FrostProof 2.27* 0.90* 3.17*
Feast II 1.74 0.99* 2.73
True 1.76 0.78* 2.54
LSD 0.20 0.20 0.23
Sown May 18, 2018.
*Statistically equal to top score.

Forage Quality

In 2017–2018, FrostProof was trialed in Crossville, TN. In addition to forage yield, University of Tennessee evaluators sampled entries for forage quality at each of the three cuttings. This chart compares FrostProof to the mean data of the 44 other entries.

University of Tennessee

Forage Quality

Crossville, TN – 2018

Harvest Variety CP ADF NDF TDN
April 10 FrostProof 18.3 28.5 57.6 69
April 10 Trial mean 16.5 30.2 56.5 67.3
           
May 2 FrostProof 12.46 29.8 46.05 67.7
May 2 Trial mean 12.6 30.9 49.1 66.6
           
May 29 FrostProof 11.6 35.07 55.37 62.43
May 29 Trial mean 11.9 34.4 53.1 63.1
Nutritive values represented at 100% DM Basis for CP, crude protein; ADF, acid detergent fiber; NDF, neutral detergent fiber; TDN, total digestible nutrients; (Analysis performed using Near Infrared Spectrometer [NIRS] Technology) Target stage of growth for harvest was late boot. Grass Hay Equation (NIRS Consortium, 2017).

Planting

Prior to Planting

For optimal performance, prior to planting, obtain a soil test. Amend soil according to recommendations and fertilize after planting according to recommendations and use. Optimal pH Range is 6.0–7.0.

When to Plant

FrostProof can be planted throughout the year. However, maximum utilization will be obtained by planting in the fall as soon as adequate moisture is available. If planted at other times of the year, performance will be limited.

How to Plant

FrostProof can be drilled or broadcast into either a prepared seedbed or an existing sod bed. For prepared seedbed, lightly disc and pack well. For existing sod bed, reduce existing sod height as much as possible.

Fertilization

Application of fertilizer (following soil test recommendations) throughout the growing season and/or use of legumes will provide maximum forage tonnage and root growth.

Seeding Rate – new pastures 25–35 lbs/ac
Seeding Rate – overseeding 10–15 lbs/ac
Planting Zones (map) green
Planting Depth ⅛"–½"
Optimal pH Range 6.0–7.0
Germination 5–10 days
FrostProof Planting Map

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