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Meroa

Meroa

Tetraploid Italian Ryegrass

Tastes better, matures later and beats the cold.

Meroa is a late-maturing, high-yielding true tetraploid Italian ryegrass. It has excellent forage quality, high yields and good winter hardiness.

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Features

Tetraploid Italian Ryegrass

Meroa has all the great benefits of being a tetraploid Italian ryegrass. It’s got twice the chromosomes of a diploid ryegrass and unique maturing of an Italian ryegrass.

High Yields

Meroa has demonstrated high yields when planted as a short-lived spring forage or a fall-planted forage.

Forage Quality

In multiple trials, Meroa shows the forage quality that you would expect from late-maturing tetraploid ryegrasses.

Winter Hardy

Meroa has outscored other varieties in winter hardiness trials.

Strengths

A True Tetraploid Italian Ryegrass

Meroa is a tetraploid ryegrass. This means it has twice the chromosomes as a diploid, higher sugar content, and big juicy leaves.

Meroa is also a true Italian ryegrass, meaning that it normally does not go to seedhead until the next summer. True Italians need to go through a cold spell before wanting to reproduce. This means you get plenty of valuable forage regardless of when you plant it.*

*This does not apply to warm-season climates where all ryegrasses burn out in the summer due to high temperatures, but is specific to regions where ryegrass can grow through the summer months.

Mero without seedheads after 45 days compared to Big Boss with seedheads at 45 days.

Winter Hardiness

Meroa has displayed good winter hardiness. Here are results/comments from 2014-15 winter:

  • Tennessee – Forage evaluator David McIntosh commented that Meroa had 10% damage in all the replication and that it "did good considering the winter we have had" at their Greeneville, TN location.

  • Ohio – At South Charleston, Meroa had nearly no winter injury and outscored 15 other entries.

Meroa with almost no winter injury.

Maturity and Forage Yields

In addition to being utilized as a spring-planted short-lived forage, Meroa can be used as a fall-planted forage or cover crop grass. When planted in the fall, Meroa has exhibited excellent yields, including very strong late-season yields.

Yield Trial

GRIFFIN, GA

Meroa had the highest score, outscoring 41 other entries. It even out-yielded the ext best variety by 1,774 lbs. DM/ac (15%).  Most of the extra yield was in the last cutting, which was 4,754 lbs DM/ac, as compared to the next best entry's 2,447 lbs. DM/ac (nearly 50% less!)

Yield Data

WINNSBORO, LA

Meroa produced 11,207 lbs DM/a over 4 harvests. This was the highest scoring entry out of 35 ryegrass entries. Of importance to note, Meroa's yields were also highest for both of the last two cuttings (April 8th and May 12th).

Yield Data

STARKVILLE & POPLARVILLE, MS

Meroa had the highest last cutting yield in Poplarville and the highest combined last two cutting yields in Starkville, MS.

2015-16 Annual Ryegrass Study* (Tons DM/A)

SOUTH CHARLESTON, OH

Variety 9/20/15 4/27 5/24 6/20 Total 2015-16
Meroa 0.09 2.18 2.25 1.54 6.07
PS 15 0.23 2.19 1.77 1.52 5.71
Winterhawk 0.06 2.38 1.82 1.44 5.69
FIPE 0.08 2.22 1.76 1.39 5.45
Fria 0.19 2.24 1.71 1.28 5.42
Nu Spirit 0.07 2.29 1.68 1.38 5.42
Passerel Pluss 0.26 2.16 1.69 1.2 5.31
Frosty 0.14 2.17 1.55 1.08 4.94
Fiser 0.45 0.24 0.77 0.52 1.97
LSD 0.05 0.09 0.27 0.18 0.24 0.43
*Planted September 4, 2015.
Complete data available upon request.

2014-15 Annual Ryegrass Study* (Tons DM/A)

SOUTH CHARLESTON, OH

Variety 5/8 6/3 7/2 Total 2015 Winter Injury (3/27/15)
Highest yield 1.78 1.80 1.02 3.46 0.6
Meroa 1.14 0.93 0.88 2.96 1.3
KB Supreme 1.26 1.20 0.48 2.94 1.0
Mach 1 0.49 1.02 0.84 2.34 3.4
Dyna-Gain 1.00 0.94 0.36 2.30 2.5
Knight 0.18 0.98 1.02* 2.18 4.2
Green Farm 1.20 0.62 0.33 2.16 1.7
KB Royal 0.69 0.78 0.39 1.86 3.1
LSD 0.05 0.22 0.22 0.19 0.38 0.60
*Planted September 9, 2014.
Complete data available upon request.

Penn State University

Forage Yield (DM/A)

ROCK SPRINGS, PA

  4-May 26-May 16-Jun Total
Highest yield 2.31* 2.56* 1.34 5.71*
Meroa 2.06* 1.78 1.30* 5.13*
Ribeye 2.02* 1.97 1.10* 5.09
Fria 1.95 2.15 0.95 5.06
Bar Extra 1.81 2.04 1.15* 5
McKinley 2.08* 1.88 1.02 4.98
Rootmax 1.93 2.08 0.96 4.97
TetraPrime 1.72 2.32* 0.91 4.95
Nelson 1.82 2.2 0.86 4.88
Jackson 2.08* 1.91 0.88 4.87
Green Farm 2.16* 1.77 0.87 4.81
Barprisma 1.85 1.76 1.14* 4.74
Lonestar 1.89 1.79 0.95 4.64
Tam 90 1.82 1.72 0.92 4.47
Bill 1.55 1.79 0.92 4.26
LSD (.05) 0.32 0.34 0.26 0.54
Planted September 19, 2014
*Statistically equal to the highest score

Penn State University

2015 PSU Short-Lived Cover Crops Trial

ANNUAL RYEGRASS (MULTI-CUT)

  Yield Tons Dry Matter/Acre
  2-May 23-May 13-Jun Total
ME4 3.66 1.12 1.55 6.34
Marshall 3.40 1.01 1.41 5.83
Meroa 2.68 1.38 1.75 5.81
Centurion 3.05 1.04 1.57 5.65
Mckinley 3.03 1.00 1.58 5.61
Jackson 3.20 1.04 1.36 5.60
Allegro 2.42 1.33 1.75 5.50
Attain 2.66 1.04 1.56 5.26
Grasshancer 2.85 0.88 1.48 5.22
Nelson 2.46 1.04 1.67 5.16
Fria 2.87 0.89 1.37 5.13
Maryna 1.62 1.59 1.89 5.10
Kodiak 2.65 0.93 1.46 5.05
Tetraprime 1.56 1.75 1.61 4.93
Barmultra II 1.94 1.32 1.66 4.93
MO-1 2.86 0.83 1.17 4.86
Andes 2.07 0.97 1.55 4.59
LSD (.05) 0.40 0.19 0.27 0.63
Planted September 18, 2015

Yield Trial

GREENEVILLE, TN

Meroa had the highest final cut (May 26th) forage yield for 18 entries. Total season forage yield was statistically equal to the top variety.

Michigan State University

Forage Yield Trial (DM/A)

East Lansing, 2017

  June 29 July 21 Sept 12 2017 Total
Marshall 0.84 0.81 0.22 1.88
Meroa 0.56 0.71 0.20 1.48
Fox 0.47 0.63 0.33 1.42
Maryna 0.42 0.63 0.32 1.38
Barextra 0.42 0.60 0.28 1.30
Firkin 0.39 0.60 0.25 1.25
LSD 0.09 0.13 0.10 0.20
Planted May 9, 2017.
Experimental varieties not listed.
Yielded statistically the same as the top-yielding entry.
Complete trial data available upon request.

Forage Quality

Meroa has the type of forage quality you would expect from a late-maturing tetraploid ryegrass. Forage quality samples have been taken in both 2015 and 2016 in multiple states.

Byron Seed

Forage Quality - Indiana

ROCKVILLE, IN - SAMPLED 04/25/2016

  DM % of Ave Yield CP NDF ADF NDFD 30H NEL M/Ton
Highest score 4795 116 23.4 57.6 35.3 42.4 0.71 3599
Meroa 4795 116 22 45.7 28.2 37.6 0.71 3599
lowest score 3772 91 18.1 45.7 28.2 37.6 0.63 2953

Cornell University

Forage Quality - New York*

ITHACA, NY - SAMPLED 05/19/2016

CP ADF aNDF Lignin NEL, Mcal/Lb RFV IFTD 30H NDFD 30H
16.9% 27.8% 45.6% 2.9% 0.73 137 87% 71%
* See Full Analysis

Penn State University

Forage Quality PA

ROCK SPRINGS, PA, PLANTED 9-19-14

First Cutting – May 4th
  CP% ADF% NDF% NDFD30 RFV
Meroa It. 22.0 24.4 41.7 72.5 157.0
Centurion It. 22.0 25.4 42.6 71.5 152.5
Bar Extra It. 23.6 23.6 41.2 77.5 159.5
TetraPrime It. 22.9 24.3 40.5 78.0 161.0
Barprisma It. 22.8 26.3 41.2 71.0 154.5
 
Second Cutting – May 26th
  CP% ADF% NDF% NDFD30 RFV
Meroa It. 16.4 32.6 52.9 58.5 112.0
Centurion It. 17.3 32.0 53.8 58.0 110.5
Bar Extra It. 19.1 31.7 52.7 59.5 114.0
TetraPrime It. 17.6 32.8 53.8 58.0 109.5
Barprisma It. 18.4 31.7 52.0 56.0 115.0
 
Third Cutting – June 16th
  CP% ADF% NDF% NDFD30 RFV
Meroa It. 20.4 34.3 54.6 60.5 106.5
Centurion It. 19.3 35.2 55.1 56.5 104.0
Bar Extra It. 21.7 33.2 53.0 60.0 110.5
TetraPrime It. 24.9 32.0 48.6 59.0 122.5
Barprisma It. 21.6 31.7 53.8 59.5 111.5

King's Agriseed

Forage Quality - Pennsylvania*

RONKS, PA - SAMPLED 04/25/2016

CP ADF ANDFom Lignin
16.55% 23.39% 34.27% 1.83%
NEL 3x, Mcal/Lb RFV NDFD 30H TTNDFD, % NDF
0.73 177 72% 71.36%
* See Full Analysis

University of Tennessee

Forage Quality TN

GREENEVILLE, TN, PLANTED 9/17/14

First Cutting - April 8th*
RFQ CP ADF NDF TDN DE NEL NEM NEG
144.42 23.94 37.52 59.32 59.77 2.06 0.61 0.59 0.33
IVTDMD48 NFC LIGNIN ASH CA P MG K FAT
79.15 17.12 1.5 3.11 1.12 0.24 0.26 1.98 3.43
 
Second Cutting - May 6th**
RFQ CP ADF NDF TDN DE NEL NEM NEG
136.34 21.33 39.83 58.86 57.14 2.04 0.58 0.55 0.3
IVTDMD48 NFC LIGNIN ASH CA P MG K FAT
115.92 14.28 39.46 59.28 57.56 2.05 0.59 0.56 0.3
 
Third Cutting - May26th***
RFQ CP ADF NDF TDN DE NEL NEM NEG
115.92 14.28 39.46 59.28 57.56 2.05 0.59 0.56 0.30
IVTDMD48 NFC LIGNIN ASH CA P MG K FAT
75.62 18.3 1.47 4.64 1.02 0.23 0.23 2.01 3.84
*Plots fully vegetative, but slow to grow due to late cold winter.
**10% seed head production.
***Fiber higher here due to the end of the season seed head production.
NIRSC equation for Grass Hay used on a Unity Spectra Star XL machine, database was updated in 2012 with ryegrass samples and these fit the statistics very well. Above are the means for the 3 replications forMeroa.

Planting

Seeding Rate 34–45 lbs. /ac
Planting Dates Aug–Dec, Mar–May
Planting Zones (map) green
Planting Depth 0–½"
Optimal pH Range 5.5–7.0
Planting zones

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