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.
Festuca pratensis Huds. · Meadow fescue
Latvijas Lauksaimniecibas universitate
Lolium perenne L. · Perennial ryegrass
Teagasc
Lolium perenne L. · Perennial ryegrass
DSV Zaden Nederland B.V.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Petoseed Company
Lolium perenne L. · Perennial ryegrass
Grass G.I.E.
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Trifolium pratense L. · Red clover
MOISA FLOARE
Lolium perenne L. · Perennial ryegrass
GIE GRASS (FR)
Lolium perenne L. · Perennial ryegrass
NUEESCH| Dr. B. Nueesch (+) c/o Forschungsanstalt Agroscope Reckenholz-Taenikon ART
Lolium x hybridum Hausskn. · Hybrid ryegrass
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
Christof Böhm in Fa. Saatzucht Steinach GmbH und Co KG
Festuca pratensis Huds. · Meadow fescue
Lolium perenne L. · Perennial ryegrass
SEMILLAS BATLLE
Lolium perenne L. · Perennial ryegrass
Anelia Katova
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Peak Plant Genetics
Trifolium pratense L. · Red clover
Malopolska Hodowla Roslin Spolka z o.o.
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S
Lolium multiflorum Lam. · Italian ryegrass
LANTMANNEN EK FOR
Trifolium pratense L. · Red clover
ILVO - Plant Toegepaste (BE)
Lolium multiflorum Lam. · Italian ryegrass
ARC - Range and Forage Institute Cedara
Lolium perenne L. · Perennial ryegrass
DEUTSCHE SAATVEREDELUNG AG
Lolium perenne L. · Perennial ryegrass
Hodowla Roslin Grunwald Sp. z.o.o. Grupa IHAR
Lolium multiflorum Lam. · Italian ryegrass
University of Florida