Skip to content
agronom.cc cultivar database

Variety traits

Ploidy — Westerwold ryegrass

Lolium multiflorum Lam. var. westerwoldicum Wittm.

A cytogenetic trait defined as the presence of diploid (2n=14) or tetraploid (2n=28) forms, which significantly affects the morphology, nutritional value, and growth intensity of the crop.

In the reference 95 varieties crop Westerwolds Ryegrass, where this is mentioned in the description.

For Westerwold ryegrass, two main cytotypes are distinguished: diploid with a set of 2n = 2x = 14 and tetraploid with a set of 2n = 4x = 28. To determine the ploidy level of modern varieties, flow cytometry is used, allowing for the measurement of DNA content in cells.

Tetraploid forms are characterized by larger cells, which results in increased size of vegetative organs and seed mass. The increase in cell volume facilitates the accumulation of higher levels of water-soluble carbohydrates while maintaining moderate cell wall thickness, which enhances palatability and intake of the forage by animals.

Tetraploids exhibit higher initial growth intensity and vigorous development, although they form a less dense sward compared to diploid varieties. The choice between these forms is based on agronomic objectives, where tetraploid varieties are preferred for producing high-quality forage mass.

General information about the subject — on the page Ploidy.

Sources8

Varieties of Westerwolds 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.

Ritaly

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

Gie Grass

PT
1 record

Mateo

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Ctirad

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Açores

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Linos

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Molisto

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

EE
1 record

Mach1

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Barextra

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Pulse

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Likoloss

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Abys

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Zoom

Withdrawn

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

CZ
1 record

Bigbang

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Rally

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Winterstar II

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Ramiro

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Caversham

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Gaza

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Andes

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

CZ
2 records

Hellen

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Star

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

Grazer

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record

fertital

Terminated

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

1 record