Selection in early Agroscope breeding material originating from a colchicine treatment of Swiss ecotypes
Mean value of standard varieties Mean
1 = very good; 5 = medium; 9 = very poor
Row trial 2004 (LP0475) under organic conditions with seed harvest on 9 half- sib families of a polycross with 9 clones.
Mean of 4 experimental sites over 2 years Base material
M0 seed
Yield Scoring scale
Literature Descent
National listing
On the Swiss List of Recommended Varieties of Forage Plants since 2013
Mean ARCTURUS
Results of the official Swiss variety trials 2014-2016
ARCTURUS
Perennial Ryegrass (4n)
Lolium perenne L.
Fact Sheet
The first organic perennial ryegrass variety of Agroscope
DUS test conducted at Scharnhorst, BSA (DE), 2010-2012
UPOV No Characteristics State of expression Note
Arcturus is our earliest variety of perennial ryegrass, requiring an early harvest (beginning May) to get a high quality forage. Furthermore, Arcturus is our first variety bred under organic conditions. In the first main season and under conventional conditions, it showed 13% higher yield than the variety Artesia. In organic plot trials, Arcturus showed lower weed infestation than observed for Artesia. Seed multiplication of Arcturus will be performed under coditions of organic agriculture.
(Suter et al. 2017) (4n, früh) Situation in Switzerland Situation abroad
Agronomic caracteristics
Description according to UPOV gidelines Things to know
Suter D.,Hirschi H.-U.,Frick R., 2017. Englisches Raigras: neue Sorten für den Schweizer Kunstfutterbau empfohlen.
Agrarforschung Schweiz 8(7), 292-299
Grieder C.,Tanner P.,Schubiger F.-X.,Boller B., 2015. Sechs neue Sorten von Englischem Raigras aus Schweizer Züchtung.
Agrarforschung Schweiz 6(7), 320-327
3.6 3.9
Yield
2.5 2.8
General impression
1.6 1.7
Juvenile growth
4.6 5.0
Competing ability
3.7 3.9
Persistence
4.2 4.4
Resistance to winter conditions
2.1 2.5
Resistance to leafspots an rust
4.5 4.6
Digestibility of the organic matter
2.1 2.2
Persistence at higher altitudes
3.0 3.2
Index (weighted average of all notes)
Ploidy tetraploid 4
1
Leaf: intensity of green color medium 5
5
Plant: vegetative growth habit (without
vernalization) semi-erect to intermediate 4
7
Plant: tendency to form inflorescences
(without vernalization) medium 5
10
Time of inflorescence emergence (after
vernalization) very early 1
11
Flag leaf: length medium 5
14
Flag leaf: width medium to wide 6
15
Publisher: Agroscope, Reckenholzstrasse 191, 8046 Zürich
In Collaboration with: Delley Seeds and Plants Ltd (DSP), 1567 Delley Editorial Team: Christoph Grieder and Peter Tanner, Agroscope Copyright: © 2018, Agroscope
Version: 16.02.2018
www.agroscope.ch www.futterpflanzen.ch
