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.
Beta vulgaris Sugar Beet Group · Sugar beet
Dr. Herman Strube
Lolium perenne L. · Perennial ryegrass
Poznanska Hodowla Roslin Sp. z o.o
Lolium multiflorum Lam. · Italian ryegrass
Grasslands Innovation Ltd
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Barenbrug Holland BV (NL)
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Barenbrug Holland BV, 6501 BH Nijmegen
Malus domestica (Suckow) Borkh. · Apple
Top Plant Vivai (IT)
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V.
Lolium perenne L. · Perennial ryegrass
Theodorus P.M. op den Kamp
Dactylis glomerata L. · Cocksfoot
Barenbrug Holland B.V.
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Lantmannen SW Seed AB, SE-268 81 Svalof
Lolium perenne L. · Perennial ryegrass
DEUTSCHE SAATVEREDELUNG AG
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Green Genetics BV (NL)
Trifolium pratense L. · Red clover
Hagberg, Arne
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V. (NL)
Lolium perenne L. · Perennial ryegrass
Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG / Dr. Ulf Feuerstein
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V.
Lolium multiflorum Lam. · Italian ryegrass
BARENBRUG HOLLAND B.V.
Lolium multiflorum Lam. · Italian ryegrass
Steve Reid
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Paul Degreef
Lolium perenne L. · Perennial ryegrass
Barenbrug Holland B.V.
Lolium perenne L. · Perennial ryegrass
Theodorus P.M. op den Kamp
Lolium perenne L. · Perennial ryegrass
BARENBRUG H.J.M.| H.J.M. Barenbrug
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
R 2n (FR)
Lolium multiflorum Lam. · Italian ryegrass
Theodorus P.M. op den Kamp