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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.

Minona

Active

Trifolium repens L. · White clover

2 records

Karmen

Active

Malus domestica (Suckow) Borkh. · Apple

4 records

Amanlis

Active

Pyrus communis L. · European pear

2 records

Banquet II

Terminated

Lolium perenne L. · Perennial ryegrass

2 records

Trylek

Active

Agrostis stolonifera L. · Creeping bentgrass

CZ
2 records

Millenium

Active

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

PL
2 records

Tigouan

Withdrawn

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

GIE GRASS (FR)

FR
1 record

Mazurka

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS, DK

FR
1 record

Barriot

Withdrawn

Festuca arundinacea Schreb. · Tall fescue

Barenbrug Holland BV (NL)

FR
1 record

Jade

Active

Humulus lupulus L. · Common hop

Herbert Ehrmaier

1 record

Zirka Mykoly Vavylova

Terminated

Echinacea purpurea (L.) Moench · Purple coneflower

Pospielov Serhii Viktorovych, Samorodov Viktor Mykolaiovych,

UA
1 record

Złoty Łan

Terminated

Matricaria recutita L. · German chamomile

Instytut Roślin i Przetworów Zielarskich

PL
1 record

Zluka

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Borysova Tetiana Oleksandvivna, Borysova Larysa Serhiivna, Fedorenko Inha Anatoliivna, Mel`nychuk IUrii Viktorovych, Mel`nyk Nadiia Serhiivna, Malihon Halyna Serhiivna, Zmiievs`kyi Volodymyr Mykolaiovych, Chemerys Lina Mykolaivna, Panov Mykhailo Ivanovych

UA
2 records

Yavorovets`ke

Terminated

Secale cereale L. · Rye

Skorobreschuk Natalia Pavlivna, Korotych Pavlo Pylypovych, Zarva Olena Ivanivna, Orlov Stanislav Dmytrovych, Roik Mykola Volodymyrovych, Voloshyn Volodymyr Mykolaiovych, Mazur Zoia Oleksandrivna,

UA
2 records

Žvilgė

Terminated

Lolium perenne L. · Perennial ryegrass

Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas

LT
1 record

Zumo

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Bernström, P/Johansson, Evert/Lindqvist, Kjell

SE
2 records

Winter Surprise

Active

Erica x darleyensis Bean · Darley heath

Johannes van Leuven

DE
1 record

Zimbawe

Withdrawn

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

MERIDIEM SEEDS S.L.

IT
1 record

Wilmuta ISK

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
2 records

Zharynka

Terminated

Lilium L. · Lily

Kykot Larysa Mykhailivna

UA
2 records

Vorskla

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Harmatiuk Natalia Vasylivna, Sinel`nyk Volodymyr Mykolaiovych, Lytvyniuk Volodymyr Viktorovych, Datsenko Petro Petrovych, Kulik Oleksandr Heorhiiovych, Vlasiuk Vitalii Ivanovych, Roik Mykola Volodymyrovych,

UA
1 record

Welbo

Active

Malus domestica (Suckow) Borkh. · Apple

Information not available - Contact NL authorities

NL
1 record

Vyliai

Terminated

Trifolium pratense L. · Red clover

Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas

LT
1 record

Viliia

Active

Trifolium hybridum L. · Alsike clover

Shtoiko Liubov Mykhailivna, Bortnovskyi Vitalii Mykolaiovych, Petrychenko Vasyl Florovych, Scherbyna Liudmyla Petrivna, Buhaiov Vasyl Dmytrovych,

UA
2 records

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