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.
Matricaria recutita L. · German chamomile
Jozef Fejér^^^Ivan Šalamon
Citrus x limon (L.) Osbeck · Lemon
GIUSEPPE REFORGIATO/GIUSEPPE RUSSO/SANTO RECUPERO
Beta vulgaris Fodder Beet Group · Mangelwurzel
DLF Seeds A/S, 4000 Roskilde
Trifolium pratense L. · Red clover
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Dr. Rolf Gaue / Wilbert Luesink
Lolium multiflorum Lam. · Italian ryegrass
DEUTSCHE SAATVEREDELUNG AG
Trifolium pratense L. · Red clover
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Trifolium pratense L. · Red clover
Linda Öhlund
Trifolium pratense L. · Red clover
Hagberg, Arne
Foeniculum vulgare Mill. · Fennel
Ricard SAS (FR)
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
PETOSEED CO
Trifolium pratense L. · Red clover
Biruta Jansone, Sarmite Rancane
Lolium perenne L. · Perennial ryegrass
PICKSEED
Malus Mill. · Apple
Jozef Morren c/o Jomobel N.V.
Lolium multiflorum Lam. · Italian ryegrass
Grass G.I.E.
Trifolium pratense L. · Red clover
Alfaseed Kft, Budapest
Lolium perenne L. · Perennial ryegrass
Aneliya Katova, Petar Vekovski, Georgi Georgiev, Anna Ilieva, Yordanka Naydenova
Beta vulgaris Sugar Beet Group · Sugar beet
KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.
Lolium multiflorum Lam. · Italian ryegrass
PADANA SEMENTI ELETTE S.R.L.
Lolium x hybridum Hausskn. · Hybrid ryegrass
ILVO-PLANT 39
Triticum aestivum L. · Bread wheat
Unisigma (FR)/Limagrain Europe (FR)
Lolium perenne L. · Perennial ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium perenne L. · Perennial ryegrass
Nilsson, Bengt
Lolium perenne L. · Perennial ryegrass
PURE SEED TESTING
Lolium perenne L. · Perennial ryegrass
HBLFA Raumberg-Gumpenstein