Aberystwyth s23
Protection expiredLolium perenne L. · Perennial ryegrass
IE
3 records
Variety traits
Winter hardiness — perennial ryegrass
Lolium perenne L.
The winter hardiness of perennial ryegrass is limited by the shallow depth of the tillering node and susceptibility to temperatures below -20 °C in the absence of snow cover. The crop's low adaptability to severe winters leads to stand thinning and reduced longevity of the sward.
In the reference 120 varieties crop Perennial ryegrass, where this is mentioned in the description.
A critical factor in the winterkilling of perennial ryegrass is the location of the tillering node at a depth of only 8–13 mm from the soil surface, a depth which tends to decrease as the stand matures. The crop does not tolerate snowless winters or late spring frosts well, which can lead to mass plant loss in unfavorable conditions as early as the first year of growth.
In breeding and variety testing, winter hardiness is assessed visually on a 5-point scale before winter dormancy and after spring regrowth. Additionally, instrumental methods are used, such as counting shoot density per unit area after wintering or laboratory freezing of plants in chambers followed by an assessment of the percentage of surviving shoots 14 days after thawing.
Due to its lower winter hardiness compared to other forage grasses, such as fescue, perennial ryegrass is often used in grass mixtures in limited proportions (no more than 25–30%) to prevent total loss of cover in the event of plant death. Its tendency to winterkill must be taken into account when planning the longevity of pastures and turf covers.
General information about the subject — on the page Winter hardiness.
Varieties of Perennial 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.
Pronum
ActiveLolium perenne L. · Perennial ryegrass
CZ
4 records
Movana
TerminatedLolium perenne L. · Perennial ryegrass
DE
3 records
Fraxinus
TerminatedLolium perenne L. · Perennial ryegrass
DE
3 records
Olaf
ActiveLolium perenne L. · Perennial ryegrass
CZ
4 records
Dexter
ActiveLolium perenne L. · Perennial ryegrass
NL
4 records
Delgrazi
TerminatedLolium perenne L. · Perennial ryegrass
DE
3 records
Riikka
ActiveLolium perenne L. · Perennial ryegrass
FI
3 records
Barfriso
TerminatedLolium perenne L. · Perennial ryegrass
DE
3 records
Premo
TerminatedLolium perenne L. · Perennial ryegrass
CZ
SK
3 records
Slugger 3GL
ActiveLolium perenne L. · Perennial ryegrass
CZ
3 records
Zoldike
ActiveLolium perenne L. · Perennial ryegrass
HU
3 records
Gyöngyvér
ActiveLolium perenne L. · Perennial ryegrass
HU
3 records
Jonas
ActiveLolium perenne L. · Perennial ryegrass
CZ
4 records
Lemon
ActiveLolium perenne L. · Perennial ryegrass
SK
2 records
Zambesi
TerminatedLolium perenne L. · Perennial ryegrass
NL
2 records
Ragnar Ii
ActiveLolium perenne L. · Perennial ryegrass
CZ
2 records
Prominent
ActiveLolium perenne L. · Perennial ryegrass
CZ
2 records
Žvilgė
TerminatedLolium perenne L. · Perennial ryegrass
Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas
LT
1 record
Indicus
WithdrawnLolium perenne L. · Perennial ryegrass
INNOSEEDS| Innoseeds B.V.
DE
1 record
Więcławicki
ActiveLolium perenne L. · Perennial ryegrass
Malopolska Hodowla Roslin Spolka z o.o.
PL
1 record
Salsa
TerminatedLolium perenne L. · Perennial ryegrass
Carneau Freres SA (FR)
FR
1 record
Tetrany
ActiveLolium perenne L. · Perennial ryegrass
Anelia Katova
BG
1 record
Pashavy
WithdrawnLolium perenne L. · Perennial ryegrass
Flor`ianovych Mykhailo Oleksiiovych
UA
1 record