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.
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Lolium perenne L. · Perennial ryegrass
L. DÆHNFELDT A/S
Malus domestica (Suckow) Borkh. · Apple
Pepinieres et Roseraies Georges Delbard| FR
Malus domestica (Suckow) Borkh. · Apple
Pepinieres et Roseraies Georges Delbard| FR
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
RAGT SA (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
SAS FLORIMOND-DESPREZ Veuve et Fils
Lolium perenne L. · Perennial ryegrass
JUNTA DE GALICIA (S.I.A.)
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE, DE
Lolium multiflorum Lam. · Italian ryegrass
CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.
Lolium x hybridum Hausskn. · Hybrid ryegrass
DLF-TRIFOLIUM| DLF-Trifolium A/S
Brassica rapa L. subsp. campestris (L.) A. R. Clapham · Field mustard
Domaine Public (FR)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
R 2n (FR)
Lolium multiflorum Lam. · Italian ryegrass
CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.
Lolium multiflorum Lam. · Italian ryegrass
ARC - Range and Forage Institute Cedara
Cannabis sativa L. · Hemp
Canimpex GmbH (CH)
Lolium multiflorum Lam. · Italian ryegrass
SEMILLAS BATLLE, S.A.
Lolium perenne L. · Perennial ryegrass
VIRGINIA LEHMAN/LOFT'S
Festuca pratensis Huds. · Meadow fescue
NORDDEUTSCHE| Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Carneau Freres SA (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
KUHN & Co Internacional B.V. (NL)
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Lolium multiflorum Lam. · Italian ryegrass
CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.