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Variety traits

Ploidy — Italian ryegrass

Lolium multiflorum Lam.

Ploidy in Italian ryegrass determines productivity levels and morphological characteristics. Breeding programs distinguish between diploid (2n) and tetraploid (4n) varieties, which differ in seed weight and development intensity.

In the reference 278 varieties crop Italian ryegrass, where this is mentioned in the description.

Two forms of ploidy are key for Italian ryegrass: diploid (2n) and tetraploid (4n) varieties. The main difference between them is observed in seed weight: the 1000-seed weight for tetraploids is 3.7–5.1 g, whereas for diploids this value ranges from 2.5–3.0 g.

Tetraploid forms are often characterized by more vigorous initial seedling growth, higher dry matter yield, and better leafiness. Converting diploid forms to a tetraploid base is a common breeding method used to increase the overall productivity and adaptability of cultivar populations of this crop.

General information about the subject — on the page Ploidy.

Sources6

Varieties of Italian ryegrass mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

Frostproof

Active

Lolium multiflorum Lam. · Italian ryegrass

Florida Foundation Seed Producers

IT
3 records

Esmeralda

Active

Lolium multiflorum Lam. · Italian ryegrass

CGS SEMENTI S.P.A.

IT
2 records

Bonivert

Active

Lolium multiflorum Lam. · Italian ryegrass

SEMILLAS BATLLE

PT
2 records

Extrem

Active

Lolium multiflorum Lam. · Italian ryegrass

PADANA SEMENTI ELETTE S.R.L.

IT
2 records

Linos

Active

Lolium multiflorum Lam. · Italian ryegrass

Zanandrea Lino

IT
2 records

Vertibelo

Active

Lolium multiflorum Lam. · Italian ryegrass

SEMILLAS BATLLE S.A.

IT
2 records

Ocala

Active

Lolium multiflorum Lam. · Italian ryegrass

Florida Foundation Seed Producers

IT
3 records

Liremo

Withdrawn

Lolium multiflorum Lam. · Italian ryegrass

Euro Grass Breeding GmbH Co. KG

DE
2 records

Gipsyl

Terminated

Lolium multiflorum Lam. · Italian ryegrass

RAGT| RAGT (Societe Anonyme)

DE
2 records

Galactico

Active

Lolium multiflorum Lam. · Italian ryegrass

F.LLI COZZI S.N.C.

IT
2 records

Tarandus

Active

Lolium multiflorum Lam. · Italian ryegrass

Forschungsanstalt Agroscope Reckenholz-Tänikon ART Herrn Dr. Beat Boller

DE
5 records

Litoro

Protection expired

Lolium multiflorum Lam. · Italian ryegrass

Dr. Ernst Lütke Entrup / Ing. agr. Günter Michelmann

DE
3 records

Sottile

Active

Lolium multiflorum Lam. · Italian ryegrass

GUERRESI SEMENTI S.R.L.

IT
2 records

Melkim

Terminated

Lolium multiflorum Lam. · Italian ryegrass

Feldsaaten Freudenberger G.m.b.H. & Co Kommanditgesellschaft

DE
2 records

KPC Laška

Active

Lolium multiflorum Lam. · Italian ryegrass

KIS (SI)

SI
2 records

Braulio

Active

Lolium multiflorum Lam. · Italian ryegrass

SEMILLAS FITO, S.A.

ES
2 records

Grasslands Bill

Active

Lolium multiflorum Lam. · Italian ryegrass

GRASSLAND TECHNOLOGY LTD

IT
3 records

Cembalo

Active

Lolium multiflorum Lam. · Italian ryegrass

CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.

IT
2 records

Temida

Active

Lolium multiflorum Lam. · Italian ryegrass

Danko Hodowla Roslin Sp.z.o.o.

2 records

Campivert

Active

Lolium multiflorum Lam. · Italian ryegrass

SEMILLAS BATLLE, S.A.

ES
2 records

Triangle T

Active

Lolium multiflorum Lam. · Italian ryegrass

Oregro Seeds

IT
3 records

Bartoluchi

Terminated

Lolium multiflorum Lam. · Italian ryegrass

BARENBRUG HOLLAND

NL
3 records

Sultano

Active

Lolium multiflorum Lam. · Italian ryegrass

GUERRESI SEMENTI S.R.L.

IT
2 records

Elmo

Withdrawn

Lolium multiflorum Lam. · Italian ryegrass

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink

DE
3 records