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
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
Institute of Biological, Environmental & Rural Sciences, Aberystwyth University
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Lolium x hybridum Hausskn. · Hybrid ryegrass
VANDINTER SEMO B.V.
Lolium perenne L. · Perennial ryegrass
Forschungsanstalt Agroscope Reckenholz-Tänikon ART Herrn Dr. Beat Boller
Lolium perenne L. · Perennial ryegrass
DEUTSCHE SAATVEREDELUNG AG
Lolium perenne L. · Perennial ryegrass
DLF-TRIFOLIUM DANSK PLANTEFORAEDLING
Lolium x hybridum Hausskn. · Hybrid ryegrass
DLF Seeds A/S, Dansk Planteforedling (DK)
Lolium perenne L. · Perennial ryegrass
Lantmannen SW Seed AB, SE-268 81 Svalof
Poa pratensis L. · Kentucky bluegrass
FORSCHUNGSANSTALT AGROSCOPE RECKENHOLZ
Trifolium pratense L. · Red clover
DEUTSCHE SAATVEREDELUNG AG
Festuca pratensis Huds. · Meadow fescue
Feldsaaten Freudenberger GmbH & Co. KG., D-47800 Krefeld
Lolium multiflorum Lam. · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium multiflorum Lam. · Italian ryegrass
Lukas H. Wolters c/o Euro Grass BV
Lolium perenne L. · Perennial ryegrass
Joost Baert
Trifolium pratense L. · Red clover
Saatzucht Steinach GmbH (DE)
Beta vulgaris Sugar Beet Group · Sugar beet
Miroslav Lakomi
Trifolium pratense L. · Red clover
Jogeva Plant Breeding Institute, Jõgeva alevik 48309
Trifolium pratense L. · Red clover
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Lolium perenne L. · Perennial ryegrass
Grass G.I.E.
Trifolium pratense L. · Red clover
P.BREED.INST.WALES
Lolium perenne L. · Perennial ryegrass
BARENBRUG HOLLAND B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Syngenta Crop Protection AG
Lolium perenne L. · Perennial ryegrass
Beat Boller