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 multiflorum Lam. · Italian ryegrass
JOORDENS' ZAADHANDEL| J. Joordens' Zaadhandel B.V.
Trifolium pratense L. · Red clover
Lantmannen ek for, SE 268-81 Svalov
Lolium x hybridum Hausskn. · Hybrid ryegrass
Frances Wilson, Courtney Inch, New Zealand Agriseeds Limited
Trifolium pratense L. · Red clover
VANDINTER SEMO B.V.
Alstroemeria L. · Alstroemeria
van Zanten Plants b.v
Lolium perenne L. · Perennial ryegrass
DLF Pickseed USA
Lolium multiflorum Lam. · Italian ryegrass
Rouergue Auvergne Gévaudan Tarnais -RAGT-
Lolium perenne L. · Perennial ryegrass
Grasslands Innovation Ltd, Grasslands Innovation Ltd
x Festulolium Aschers. et Graebn. · Festulolium
Cropmark Seeds
x Festulolium Aschers. et Graebn. · Festulolium
INIA-La Estanzuela
Malus domestica (Suckow) Borkh. · Apple
Markus Kobelt
Lolium multiflorum Lam. · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Lolium multiflorum Lam. · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Trifolium pratense L. · Red clover
SELGEN A.S
Lolium multiflorum Lam. · Italian ryegrass
Euro Grass Breeding GmbH Co. KG
Actinidia Lindl. · Actinidia
RAFFAELE TESTOLIN|GUIDO CIPRIANI
Hemerocallis L. · Daylily
Peter Seldte, Malanseuns Pleasure Plants
Secale cereale L. · Rye
PHP PETERSEN
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG, CH
Beta vulgaris Sugar Beet Group · Sugar beet
Betaseed
Beta vulgaris Sugar Beet Group · Sugar beet
Danisco Seed (AT)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
FAL Station de Recherche Agronomique Federale (CH)
Beta vulgaris Sugar Beet Group · Sugar beet
D J Van der Have BV (NL)