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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.

GRASSLANDS TAMA

Terminated

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

GRASSLANDS DIVISION

ES
1 record

Beltoise

Application submitted

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

DLF Seeds A-S, DK

HR
1 record

Jako

Withdrawn

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

Padana Sementi Elette

BE
1 record

LUNAR

Terminated

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

ZELDER

ES
1 record

Licherry

Terminated

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

1 record

TORNADO

Withdrawn

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

DK
1 record

Maddalena

Terminated

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

1 record

BILLION 4N

Terminated

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

SESVANDERHAVE N.V./S.A. (BE)

HR
1 record

Muriello

Terminated

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

1 record

Portax

Terminated

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

1 record

Star

Active

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

1 record

Marvel

Active

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

1 record

Bormitra

Active

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

1 record

ANGUS

Withdrawn

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

DK
1 record

Lilio

Terminated

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

1 record

Javorio

Terminated

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

1 record

Jedor

Active

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

1 record

Winter Star 3

Active

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

1 record

Baukis

Terminated

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

1 record

Winterstar II

Active

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

1 record

Astound

Active

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

1 record

Caversham

Terminated

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

1 record

Danakyl 1504

Terminated

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

1 record