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
Franz, Chlodwig / Isaac, Otto
Beta vulgaris Sugar Beet Group · Sugar beet
SAS Maison Fernand Lepeuple (FR)
Lolium multiflorum Lam. · Italian ryegrass
Dr. Ernst Lütke Entrup / Ing. agr. Günter Michelmann
Beta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
Beta vulgaris Sugar Beet Group · Sugar beet
Dietrich Hauer, Rudolf Jansen, Wolfgang Mechelke,
Brassica napus var. napus · Rapeseed
Lantmännen SW Seed
Beta vulgaris Sugar Beet Group · Sugar beet
DANISCO SEED| Maribo Seed GmbH
Fagopyrum esculentum Moench · Buckwheat
Przedsiebiorstwo Hodowlano-Nasienne sp. z o.o.
Lolium multiflorum Lam. · Italian ryegrass
RAGT| RAGT (Societe Anonyme)
Lolium multiflorum Lam. · Italian ryegrass
Wojciech Mikulski c/o Hodowla Roslin Szelejewo / W. Piotrowski c/o Hodowla Roslin Szelejewo / M. Ratajczyk / K. Fekecz
Lolium multiflorum Lam. · Italian ryegrass
Zanandrea Lino
Lolium multiflorum Lam. · Italian ryegrass
Florida Foundation Seed Producers
Beta vulgaris Sugar Beet Group · Sugar beet
Florimond Desprez Veuve et Fils, FR
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
Carneau Freres SA Eurogazon (FR)
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
Fagopyrum esculentum Moench · Buckwheat
Przedsiebiorstwo Hodowlano-Nasienne sp. z o.o.
Lolium multiflorum Lam. · Italian ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
Karine Bounan-Henry
Beta vulgaris Sugar Beet Group · Sugar beet
Werner Beyer, Dietrich Hauer, Wolfgang Mechelke,
Hordeum vulgare L. · Barley
SECOBRA RECHERCHES S.A.S
Lolium multiflorum Lam. · Italian ryegrass
COZZI GABRIELE
Hordeum vulgare L. · Barley
SEMILLAS BATLLE, S.A.
Gerbera jamesonii Bolus ex Hook. f. · Barberton daisy
Florist De Kwakel B.V. Gerbera Kulturen