Variety traits
Lolium perenne L.
The germination of perennial ryegrass reflects the ability of seeds to sprout under temperature conditions of 20–30 °C. This indicator serves as the basis for calculating the seeding rate, which typically ranges from 2–4 million viable seeds per hectare.
In the reference 29 varieties crop Perennial ryegrass, where this is mentioned in the description.
For laboratory determination of perennial ryegrass seed germination, specific temperature regimes for sprouting in the 20–30 °C range have been established. Standard requirements for the sowing qualities of this crop's seeds stipulate a germination level of no less than 80–85%, depending on the category of the seed material.
Perennial ryegrass is characterized by high germination energy and the emergence of seedlings on the 5th–7th day under favorable conditions. When seeds are sown at a depth of more than 2–3 cm or at soil temperatures below 5–8 °C, germination rates decrease, which leads to sparse stands and uneven turf cover.
General information about the subject — on the page Germination capacity.
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 perenne L. · Perennial ryegrass
DLF SEEDS A/S
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Lolium perenne L. · Perennial ryegrass
Seed Research of Oregon & Rutgers, The State University of New Jersey
Lolium perenne L. · Perennial ryegrass
Novel AG
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV, 6501 BH Nijmegen
Lolium perenne L. · Perennial ryegrass
Zelder BV (NL)
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Lolium perenne L. · Perennial ryegrass
INTERNATIONAL SEEDS INC
Lolium perenne L. · Perennial ryegrass
BARENBRUG RESEARCH WOLFHEZE
Lolium perenne L. · Perennial ryegrass
WOLTERS LUKAS / STELLING DIETER
Lolium perenne L. · Perennial ryegrass
Pure Seed Testing Inc (US)
Lolium perenne L. · Perennial ryegrass
Vijn, Ralph
Lolium perenne L. · Perennial ryegrass
REHEUL| Prof. Dr. ir. Dirk Reheul c/o Universitaet Gent - Afd. Planten-teelt en Plantenveredeling
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S, 4000 Roskilde
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND
Lolium perenne L. · Perennial ryegrass
WIJK| Dr. A.J.P. van Wijk c/o Limagrain Advanta Nederland B.V.
Lolium perenne L. · Perennial ryegrass
Dieter Stelling
Lolium perenne L. · Perennial ryegrass
Theodorus P.M. op den Kamp
Lolium perenne L. · Perennial ryegrass
The State University of New Jersey - Rutgers (US)
Lolium perenne L. · Perennial ryegrass
H.J.M. Barenbrug
Lolium perenne L. · Perennial ryegrass
Pennsylvania Agricultural Experiment Station
Lolium perenne L. · Perennial ryegrass
STELLING DIETER
Lolium perenne L. · Perennial ryegrass
SCHUMANN CORD / STELLING DIETER
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland BV (NL)