Variety traits
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.
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.
Lolium multiflorum Lam. · Italian ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Lolium multiflorum Lam. · Italian ryegrass
EURO GRAS| Euro Grass Breeding GmbH & Co. KG
Lolium multiflorum Lam. · Italian ryegrass
ILVO Plant
Lolium multiflorum Lam. · Italian ryegrass
DSV DEUTSCHE SAATVEREDELUNG
Lolium multiflorum Lam. · Italian ryegrass
GAPP Semillas SA
Lolium multiflorum Lam. · Italian ryegrass
RAGT 2N S.A.S
Lolium multiflorum Lam. · Italian ryegrass
Norddeutsche Pflanzenzucht
Lolium multiflorum Lam. · Italian ryegrass
Theodorus P.M. op den Kamp
Lolium multiflorum Lam. · Italian ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Lolium multiflorum Lam. · Italian ryegrass
ROCALBA S.A.
Lolium multiflorum Lam. · Italian ryegrass
PICKSEED
Lolium multiflorum Lam. · Italian ryegrass
DEPT FOR PLANT BREEDING and GENETICS -ILVO
Lolium multiflorum Lam. · Italian ryegrass
SAATZUCHT STEINACH GMBH and CO KG
Lolium multiflorum Lam. · Italian ryegrass
BARENBRUG HOLLAND
Lolium multiflorum Lam. · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium multiflorum Lam. · Italian ryegrass
DSV Francia
Lolium multiflorum Lam. · Italian ryegrass
DEUTSCHE SAATVEREDELUNG AG
Lolium multiflorum Lam. · Italian ryegrass
Forschungsanstalt Agroscope Reckenholz-Tänikon ART Herrn Dr. Beat Boller
Lolium multiflorum Lam. · Italian ryegrass
RAGT 2N S.A.S
Lolium multiflorum Lam. · Italian ryegrass
VAN ENGELEN ZADEN BV
Lolium multiflorum Lam. · Italian ryegrass
BARENBRUG HOLLAND B.V.
Lolium multiflorum Lam. · Italian ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Lolium multiflorum Lam. · Italian ryegrass
RAGT 2N S.A.S
Lolium multiflorum Lam. · Italian ryegrass
DLF SEEDS A/S