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.

TANIA 47

Active

Citrus reticulata Blanco · Mandarin orange

IVIA

1 record

Tapiau 8

Terminated

Populus L. · Poplar

Foerderverein fuer nachwachsende Rohstoffe e.V. Forschungsinstitut fuer schnell- wachsende Baumarten

1 record

TANIA 44

Active

Citrus reticulata Blanco · Mandarin orange

IVIA/AVASA

2 records

Swale

Terminated

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

Lantmännen SW Seed

1 record

Supjibi

Terminated

Euphorbia pulcherrima Willd. ex Klotzsch x Euphorbia cornastra (Dressler) Radcl.-Sm.

Gross, E

1 record

Superbissima Rosa

Terminated

Petunia x hybrida hort. ex E. Vilm. · Garden petunia

Warszawskie Przedsiębiorstwo Hodowli Roślin Ogrodniczych

1 record

Svitanok nad Udaiem

Application submitted

Hemerocallis L. · Daylily

Pischenko Oleh Volodymyrovych, Kovera Viktoriia Hryhorivna, Shylo Mykola Petrovych,

4 records

SURREY II

Active

Lolium multiflorum Lam. · Italian ryegrass

DLF-TRIFOLIUM DANSK PLANTEFORAEDLING

1 record

SY Blixa

Terminated

Beta vulgaris L. · Beet

Syngenta Crop Protection AG

1 record

Sweet104

Application submitted

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

Nunhems Netherlands B.V.

2 records

Stena

Terminated

Trifolium hybridum L. · Alsike clover

Hagberg, Arne

2 records

Stendhal

Active

Triticum monococcum L. · Einkorn wheat

CREA-CENTRO DI RICERCA INGEGNERIA E TRASFORMAZIONI AGROALIMENTARI (CREA-IT)

1 record

Sunday Special F1

Application submitted

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

Moshe Zalsman

2 records

Sport

Protection expired

Phleum nodosum L. · Small-leaf timothy

Vilmorin SA (FR)

1 record

Stamm P

Protection expired

Raphanus sativus L. · Radish

AUSTROSAAT Österr. Samenzucht- und Handels-AG

1 record

SONET

Active

Citrus reticulata Blanco · Mandarin orange

AGRICULTURAL RESEARCH COUNCIL

1 record

Sława KWS

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

1 record

Snihova koroleva

Terminated

Miscanthus lutarioriparius L. Liou ex Renvoize & S. L. Chen · Amur silver grass

Kvak Volodymyr Mykhailovych, Henzhenko Oleksandr Mykolaiovych, Hontarenko Svitlana Mykolaivna, Humentyk Mykhailo IAroslavovych, Kurylo Vasyl` Leonidovych, Roik Mykola Volodymyrovych,

2 records

Sigma

Terminated

Hordeum vulgare L. · Barley

Secobra Recherches, FR

1 record

Sarmat

Active

Triticum turgidum L. subsp. turanicum (Jakubz.) Á. Löve & D. Löve · Khorasan wheat

Viniukov Oleksandr, Vyskub Roman, Chuhrii Hanna

2 records

SAMSON

Terminated

Lolium x hybridum Hausskn. · Hybrid ryegrass

INTERNATIONAL SEEDS INC

1 record

Sakini0

Withdrawn

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S

1 record

Sally

Terminated

Trifolium pratense L. · Red clover

Hagberg, Arne

2 records

SAGA W2

Withdrawn

Prunus domestica L. · European plum

Earl Les Hebrards (FR)

1 record

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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.