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Variety traits

Ploidy — Italian ryegrass

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.

Sources8

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.

Karmyl

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

RAGT 2n, FR

CZ FR
3 records

Meryl

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ILVO PLANT TOEGEPASTE GENETICA EN VEREDELING

BE PL
3 records

Sweetmaryna

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Peak Plant Genetics

PL
3 records

Fedo

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

FAL Station de Recherche Agronomique Federale (CH)

FR
3 records

Bartali

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

BARENBRUG HOLLAND

ES PL
3 records

Mir

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Bc Institut d.d. Zagreb (HR)

HR
2 records

Locobelo

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

SEMILLAS BATLLE, S.A.

ES
2 records

Clorofyl

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

R 2n (FR)

FR
2 records

Mertaki

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

CAUSSADE SERVICES BENELUX

BE
2 records

Syntilla

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

RAGT 2n, FR

FR
2 records

Melcasso

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ILVO-PLANT 39

BE
2 records

Daphnis

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Saatzucht Steinach GmbH & Co KG

3 records

Avensyl

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

RAGT SA (FR)

FR
2 records

Fedra

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

MATTON CLOVIS

BE
2 records

Melclips

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ILVO-PLANT 39

BE
2 records

Arman

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

DEUTSCHE SAATVEREDELUNG AG

CZ
3 records

Talvike

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Herbert Korjus 70%, Rene Aavola 30%

EE
3 records

Maggyl

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

R 2n (FR)

FR
2 records

Passat

Protection expired

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

AT
2 records

AMENDA

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ZWAAN & DE WILJES

DK ES
2 records

Meldela

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ILVO-PLANT 39

BE
2 records

BETTINA

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

DLF-TRIFOLIUM A/S

DK ES
3 records

Raborika

Active

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

DLF Seeds A/S

CZ
4 records

Agryl

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

RAGT SA (FR)

FR
2 records