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Variety traits

Ploidy

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.

Sources10

Breakdown by crop

Ploidy — Perennial Ryegrass 853 Apple Ploidy 479 Ploidy — Sugar beet 465 Ploidy — Italian ryegrass 278 Ploidy — Red Clover 252 Ploidy — Italian ryegrass 190 Ploidy — Hybrid Ryegrass 110 Watermelon ploidy 100 Ploidy — Westerwold ryegrass 95 Ploidy — Fodder Beet 55 Ploidy — Rye 49 Ploidy of pear 40 Mandarin Ploidy 31 Ploidy — Meadow Fescue 29 Citrus Ploidy 25 Beet Ploidy 24 Ploidy of Festulolium 24 Apple Ploidy 23 Ploidy — Japanese plum 21 Lily Ploidy 19 Alstroemeria Ploidy 19 Ploidy of orchardgrass 17 Ploidy of German chamomile 17 Ploidy of the European Plum 14

Found in these crops

Perennial ryegrass 853 Apple 498 Sugar beet 466 Italian ryegrass 278 Red clover 252 Italian ryegrass 191 Hybrid ryegrass 110 Watermelon 102 Westerwolds Ryegrass 95 Mangelwurzel 55 Rye 49 European pear 42

Varieties that feature this in their description

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.

Dagny

Protection expired

Trifolium pratense L. · Red clover

ANDERSSON BENGT

SE
4 records

Daliryan

Active

Malus domestica (Suckow) Borkh. · Apple

SNC Elaris (FR)/Davodeau Ligonniere Sarl (FR)

FR
6 records

Chorus

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed

PL
3 records

Clerpin

Terminated

Lolium perenne L. · Perennial ryegrass

Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)

FR
5 records

Colanima

Active

Lolium perenne L. · Perennial ryegrass

DEUTSCHE SAATVEREDELUNG AG

DE
4 records

Channi 1

Active

Lolium perenne L. · Perennial ryegrass

DLF B.V.

NL
5 records

Charlfield

Active

Lolium perenne L. · Perennial ryegrass

Teagasc

IE
4 records

Cerante

Active

Trifolium pratense L. · Red clover

CENTRO DI RICERCA MIGLIORAMENTO GENETICO PIANTE AGRARIE S.R.L. C.M.G.P.A.

IT
3 records

Creator

Active

Lolium perenne L. · Perennial ryegrass

Agroscope (CH)/Delley Semences et Plantes SA (CH)

FR
3 records

Colosse

Protection expired

Beta vulgaris L. · Beet

L'INSTITUT NATIONAL DE LA

AT
6 records

Coralia KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

FR
3 records

Catus

Active

Lolium multiflorum Lam. · Italian ryegrass

SEMILLAS BISCAYART S.A.

IT
3 records

Chevalier

Active

Lolium perenne L. · Perennial ryegrass

Deutsche Saatveredelung AG, Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

DE
4 records

Cirvija

Active

Lolium perenne L. · Perennial ryegrass

Lietuvos agrarinių ir miškų mokslų centras

LT
4 records

Cabestan

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Carneau Freres SA (FR)

FR
3 records

Catanga

Active

Lolium perenne L. · Perennial ryegrass

Semences De France (FR)

FR
4 records

Bragelim

Active

Lolium multiflorum Lam. · Italian ryegrass

Instituto Nacional de Investigação Agrária (INIA) -Portugal-, Instituto Nacional de Recursos Biológicos (INRB) -Portugal-

PT
5 records

Bomium

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

NL
3 records

Boost

Active

Lolium perenne L. · Perennial ryegrass

Oregro Seeds

IT
3 records

Carvallo

Active

Lolium perenne L. · Perennial ryegrass

Carneau Freres SA (FR)

FR
3 records

Bovinel

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Barenbrug Holland BV (NL)

FR
4 records

Caid

Active

Lolium multiflorum Lam. · Italian ryegrass

RAGT 2n

DE
6 records

BISON

Terminated

Lolium x hybridum Hausskn. · Hybrid ryegrass

INTERNATIONAL SEEDS INC

ES
3 records

Borellus

Terminated

Secale cereale L. · Rye

SCHMIECHEN| Dipl.Lw.Ulrich Schmiechen in Fa.Saatzucht Steinach GmbH & Co KG - Zuchtstation Bornhof - / HAAG| Franz Haag / MOELLER CHRISTA| Christa Moeller

DE
4 records

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