Variety traits
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart
The ploidy of Italian ryegrass determines the classification of varieties into diploid (2n=14) and tetraploid (2n=28) forms, which differ significantly in morphology, forage quality, and agronomic characteristics.
In the reference 190 varieties crop Italian ryegrass, where this is mentioned in the description.
Diploid varieties of Italian ryegrass are characterized by smaller cell size, higher tillering capacity, and the formation of a dense sward. They demonstrate increased tolerance to trampling, better competitiveness against weeds, and adaptability to extreme conditions, including waterlogged soils.
Tetraploid varieties have larger cells, which leads to the formation of wider leaves and a higher concentration of water-soluble carbohydrates, improving the palatability of the forage for livestock. These forms exhibit an erect growth habit and require higher seeding rates due to their larger seed size, although they are sensitive to overgrazing and environmental stress.
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. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Deutsche Saatveredelung AG - DSV (DE)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Hodowla Roslin Grunwald Sp. z.o.o. Grupa IHAR
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
FAL Station de Recherche Agronomique Federale (CH)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
FORSCHUNGSANSPALT
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
ILVO-PLANT 39
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Innoseeds B.V.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Danko Hodowla Roslin Sp.z.o.o.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Dr. Beat Boller
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Forschungsanstalt Agroscope Reckenholz-Tänikon ART
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Slechtitelska Stanice Hladke Zivotice s.r.o., Hladke Zivotice
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
DLF Trifolium A-S, DK
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
RAGT SA (FR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
RAGT SA (FR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Agroscope Reckenholz
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Carneau Freres SA (FR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
ILVO - Plant Toegepaste (BE)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Carneau Freres SA Eurogazon (FR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Carneau Freres SA (FR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Mommersteeg International BV (NL)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
VANDIJKE SEMP
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
ZJEDNDCZENIE NASIENNIC
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
DLF-TRIFOLIUM A/S
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Agroscope Reckenholz
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Zelder Holland(NL)