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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.

Mira

Active

Trifolium incarnatum L. · Crimson clover

Jouffray-Drillaud SA (FR)

FR
1 record

Muro

Terminated

Secale cereale L. · Rye

KOECHLING| Dr. J. Koechling in Fa. Saatzucht Petkus GmbH / ERFURTH LUTZ| Lutz Erfurth in Fa. Saatzucht Petkus GmbH / SCHULZ R.| R. Schulz in Fa. Saatzucht Petkus GmbH

DE
1 record

Minto

Withdrawn

Festuca pratensis Huds. · Meadow fescue

Jönsson Hans Arne

SE
1 record

META ØTOFTE

Terminated

Trifolium hybridum L. · Alsike clover

FDB, ALBERTSLUND & DLF, ROSKILDE

DK
1 record

MOWESTER

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ZJEDNDCZENIE NASIENNIC

ES
1 record

MORADO DE TAXARA

Withdrawn

Asparagus officinalis L. · Asparagus

C.R.D.ESPARRAGO HUETOR-TA

ES
1 record

Merveille

Protection expired

Lolium perenne L. · Perennial ryegrass

Carneau Freres SA (FR)

FR
1 record

Mastar

Active

Matricaria recutita L. · German chamomile

Instytut Włókien Naturalnych i Roślin Zielarskich Państwowy Instytut Badawczy

PL
1 record

Maverick Gold II

Withdrawn

Lolium x hybridum Hausskn. · Hybrid ryegrass

PGG Wrightson Seeds

IT
1 record

MHR Jagoda

Application submitted

Poa nemoralis L. · Wood bluegrass

Malopolska Hodowla Roslin Spolka z o.o.

PL
1 record

MH 4124

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

DLF BEET SEED A.P.S.

ES
1 record

Mabamille

Protection expired

Matricaria recutita L. · German chamomile

Dr. Manfred Herold im Zentralinstitut für Sonder- kulturen und Zierpflanzen / Ernst Buschbeck in Fa. PHARMAPLANT GmbH / Dr. Hans Krüger im Zentralinstitut für Sonder- kulturen und Zierpflanzen / Martin Bauer GmbH & Co KG Herrn Dr. Hans-Jürgen Hannig

DE
1 record

LUNAR

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

ZELDER

ES
1 record

MATIZ

Active

Citrus reticulata Blanco · Mandarin orange

LUIS NAVARRO LUCAS, PABLO ALEZA GIL, JOSÉ JUÁREZ ROLDAN, JOSÉ MANUEL JULVE PARREÑO, JOSÉ CUENCA IBÁÑEZ, JOSE ANTONIO PINA LORCA

ES
2 records

Maverick Gold 11

Withdrawn

Lolium x hybridum Hausskn. · Hybrid ryegrass

PGG Wrightson Seeds

IT
1 record

Mashen'ka

Terminated

Morus L. · Mulberry

UA
1 record

LINOS

Protection expired

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Zanandrea Lino (IT)

HR
1 record

MAGNA POLY

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Danisco Seed

ES
1 record

LEIVA

Application submitted

Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon

SEMILLAS FITO, S.A.

ES
1 record

LP2006DA

Active

Lolium perenne L. · Perennial ryegrass

Cropmark Seeds

IT
1 record

LIMELLA

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

D.SAATVEREDELUNG LIPPSTAD

ES
1 record

Liadovske

Terminated

Panicum virgatum L. · Switchgrass

Wolter Elbersen, Mandrovs`ka Svitlana Mykolaivna, Hanzhenko Oleksandr Mykolaiovych, Honcharuk Hryhorii Semenovych, Roik Mykola Volodymyrovych,

UA
2 records

Lidor

Terminated

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

Societe Eraf (FR)

FR
1 record

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