Variety traits
Ploidy is the number of sets of chromosomes in a cell nucleus, which determines the biological properties and productivity of a variety. This trait is used in breeding to modify morphological parameters of plants, such as increasing fruit size.
Mentioned in descriptions 10 934 varieties reference book.
Ploidy reflects the number of sets of chromosomes in a plant cell nucleus. An organism can be diploid, having two sets, haploid with one, or polyploid, containing three or more sets. In agricultural practice, this indicator is an important factor in the productivity and stability of a variety, as polyploidy allows for targeted changes in the size of plant cells and organs.
The choice of ploidy level depends on the cultivation goals of a specific crop. The effect of polyploidy is not universal: while it serves as a tool for increasing productivity in some species, such as sugar beet, a diploid set remains critical for others to ensure normal seed set.
Ploidy assessment is conducted during the breeding process and state variety trials using flow cytometry, direct cytogenetic chromosome analysis, or indirect methods based on stomatal cell size. During trials, the stability of the chromosome set is verified, as any deviations, such as the appearance of aneuploid forms, can lead to reduced yields and increased crop variability.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Lolium perenne L. · Perennial ryegrass
Weibull, Peder
Avena strigosa Schreb. · Black oat
Panam France sarl (FR)/Panam Chili (CL)
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Lolium multiflorum Lam. · Italian ryegrass
Barenbrug Holland B.V.
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium perenne L. · Perennial ryegrass
Mr Alan Lovatt
Lolium perenne L. · Perennial ryegrass
Innoseeds B.V. (NL)
Lolium x hybridum Hausskn. · Hybrid ryegrass
Freudenberger, D
Lolium perenne L. · Perennial ryegrass
STELLING DIETER
Lolium perenne L. · Perennial ryegrass
DLF Trifolium A-S, DK
Malus domestica (Suckow) Borkh. · Apple
SNC Elaris| FR
Festuca ovina L. · Sheep's fescue
SAATZUCHT STEINACH GMBH and CO KG
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Malus domestica (Suckow) Borkh. · Apple
Sally Mennell^^^Wilfrid Mennell
Malus domestica (Suckow) Borkh. · Apple
SOUTHERN TREES LIMITED
Lolium perenne L. · Perennial ryegrass
NEW ZEALAND AGRISEED
Lolium perenne L. · Perennial ryegrass
NEW ZEALAND AGRISEED
Lolium perenne L. · Perennial ryegrass
WRIGHTSON PAS S.A.
Lolium perenne L. · Perennial ryegrass
VIJN| R. Vijn c/o Cebeco Seeds B.V.
Lolium perenne L. · Perennial ryegrass
VANDIJKE SEMP
Lolium multiflorum Lam. · Italian ryegrass
BARENBRUG HOLDING| Barenbrug Holding B.V.
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Rijksstation Voor Plantenveredeling (BE)
Lolium perenne L. · Perennial ryegrass
D.J.VAN DER HAVE
Trifolium pratense L. · Red clover
VEB SAAT