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.

Lena

Protection expired

Erica x darleyensis Bean · Darley heath

Ludger Cattelaens

1 record

Lazur

Active

Matricaria

D. Stanev, K. Kamburova, Yu. Mihaylova, A. Tenev

1 record

Kyoho

Active

Vitis L. · Grapevine

Institute for Agronomical and Biological Science (JP)

1 record

KRAKE

Terminated

Beta vulgaris Fodder Beet Group · Mangelwurzel

DLF-TRIFOLIUM A/S

2 records

Kiborh

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Kulik Oleksandr Heorhiiovych, Koval` Mykola Stepanovych, Ivanishen Oleksandr Mechyslavovych, Tsys` Oleksandr Oleksiiovych, Vlasiuk Vitalii Ivanovych, Honcharuk Hryhorii Semenovych, Roik Mykola Volodymyrovych,

2 records

Kalynivskyi

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Falatiuk Liudmyla Volodymyrivna, Rybak Volodymyr Oleksiiovych, Kulik Oleksandr Heorhiiovych, Roik Mykola Volodymyrovych,

2 records

Kaita

Active

Festuca pratensis Huds. · Meadow fescue

Lietuvos agrarinių ir miškų mokslų centras

1 record

Kiršinai

Terminated

Trifolium pratense L. · Red clover

Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas

1 record

JUMPRAVA

Withdrawn

Lilium L. · Lily

Antra Balode

1 record

Izabelė

Terminated

Lophospermum scandens D. Don · Creeping gloxinia

Vytauto Didžiojo universiteto Žemės ūkio akademija

1 record

IVIA TRI 707

Active

Citrus reticulata Blanco · Mandarin orange

IVIA-LNL-PAG-JCI-JJR-JPL-COC-ANL

1 record

Jastra

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.

1 record

Jako

Withdrawn

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

Padana Sementi Elette

1 record

ITsB 0902

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

Barakhtians`kyi Mykola Pavlovych, Trokhymets` Ol`ha Ivanivna, Herasymenko Volodymyr Hryhorovych, Rybak Volodymyr Oleksiiovych, Lobodyn Oleh Kostiantynovych, Kulik Oleksandr Heorhiiovych, Roik Mykola Volodymyrovych,

1 record

Indicus

Withdrawn

Lolium perenne L. · Perennial ryegrass

INNOSEEDS| Innoseeds B.V.

1 record

JORAYCA

Terminated

Malus domestica (Suckow) Borkh. · Apple

BILSEN MARC & RIK*

1 record

Howard sun

Active

Prunus L. · Plum

CHAMBERLIN THOMAS O.

1 record

Illinois

Active

Miscanthus x giganteus J. M. Greef & Deuter ex Hodk. & Renvoize · Giant miscanthus

Anna Majewska-Sawka

2 records

Janasz

Withdrawn

Beta vulgaris Sugar Beet Group · Sugar beet

KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.

1 record

IVIA TRI-705

Active

Citrus reticulata Blanco · Mandarin orange

IVIA

1 record

IMAGINATION USA

Withdrawn

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

SYNGENTA SEEDS B.V.

1 record

Hustle

Application submitted

Lolium perenne L. · Perennial ryegrass

RAGT 2N S.A.S

1 record

Gumpensteiner (Syn.: Ligunda)

Protection expired

Lolium x hybridum Hausskn. · Hybrid ryegrass

LFZ Raumberg-Gumpenstein Institut für Pflanzenbau und Kulturlandschaft

1 record

Hacnine

Terminated

Malus domestica (Suckow) Borkh. · Apple

T. MINEGISHI, H. WATANABE (JP)

2 records

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Variety traits

Maturity group 89 063
Yield 67 000
Vigor 53 548
Plant height 51 504
Lodging 50 198
Taste and aroma 36 010
Variety origin 29 523
Productivity 27 845

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.