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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.

Ryzon

Terminated

Beta vulgaris L. · Beet

Vasil`ieva Nataliia Oleksandrivna, Bilous Nataliia Vasylivna, Lytvyniuk Volodymyr Viktorovych, Nurmukhammedov Alisher Kakhramonovych, Roik Mykola Volodymyrovych,

UA
2 records

Rubika

Withdrawn

Trifolium pratense L. · Red clover

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
1 record

Salino

Active

Trifolium L. · Clover

D'EUGENIO ASVERO / D'EUGENIO ITALO / D'EUGENIO RIVO

IT
1 record

Rosamunde

Terminated

Begonia x hiemalis Fotsch · Elatior Begonia

MAN| J. Man

DE
1 record

Ritaly

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

Gie Grass

PT
1 record

Regatta

Terminated

Lolium x hybridum Hausskn. · Hybrid ryegrass

Mommersteeg International BV (NL)

FR
1 record

Robumille

Terminated

Matricaria recutita L. · German chamomile

Kreszentia Kirsch

DE
2 records

Regal Gala ISK

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

Radyka

Terminated

Trifolium pratense L. · Red clover

Instytut Hodowli i Aklimatyzacji Roslin Panstwowy Instytut Badawczy

PL
1 record

PURPLE PRIDE

Terminated

Rhipsalidopsis gaertneri (Regel) Moran · Easter Cactus

L.C. THOMAS BOTANICALS

DK
1 record

Punto

Withdrawn

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

Euro Grass B.V. (NL)

FR
1 record

Pukhnastyk

Terminated

Lagurus ovatus L.

Hryd`ko Ol`ha Oleksandrivna, Kudina Halyna Oleksandrivna,

UA
2 records

PRONTO

Terminated

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

RAGT

ES
1 record

Rapid

Terminated

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

V. R. Viljamso pašarų institutas

LT
1 record

PREGO

Terminated

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

L. DÆHNFELDT A/S

DK
2 records

Promyk IRZ

Terminated

Matricaria recutita L. · German chamomile

Instytut Roślin i Przetworów Zielarskich

PL
1 record

POMBA

Active

Lolium multiflorum Lam. · Italian ryegrass

JUNTA DE GALICIA (S.I.A.)

ES
1 record

Prometei

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Panov Mykhailo Ivanovych, Miryshnychenko Vasyl` Mykytovych, Lytvynenko Kateryna IEvheniivna, Kaniber Mariia Dmytrivna, Borysova Tetiana Oleksandrivna, Lytvyniuk Volodymyr Viktorovych, Borysova Larysa Serhiivna, Leibovych Anatolii Solomonovych, Kulik Oleks

UA
2 records

Poliano

Active

Panicum miliaceum L. · Proso millet

Shudria Petro Petrovych

UA
2 records

PRESTO PAJBJERG

Terminated

Lolium perenne L. · Perennial ryegrass

PAJBJERG A/S

DK
1 record

Pisnia Khorsa

Terminated

Hemerocallis L. · Daylily

Pereboichuk Oksana Petrivna, Scherbakova Tetiana Oleksandrivna,

UA
2 records

Plutone F

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Stefaan Horemans

UA
1 record

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