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.

Barmetra

Terminated

Lolium perenne L. · Perennial ryegrass

BARENBRUG HOLLAND

AT DE NL PL

7 records

Arusi

Active

Lolium perenne L. · Perennial ryegrass

DLF SEEDS A/S

CZ DE NL PL

8 records

Toledo

Active

Lolium perenne L. · Perennial ryegrass

WELLEN J. J.

DE DK PL

10 records

Toleranza KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS, D

CZ LT PL

8 records

Taptoe

Terminated

Lolium perenne L. · Perennial ryegrass

D.J.VAN DER HAVE

DK ES NL

7 records

Sucral

Active

Lolium perenne L. · Perennial ryegrass

Vincent Beguier

DE FR UA

8 records

Rotra

Active

Trifolium pratense L. · Red clover

Rijksstation Voor Plantenveredeling (BE)

DE FR NL

9 records

Rossera

Active

Lolium perenne L. · Perennial ryegrass

WOLTERS LUKAS / STELLING DIETER

DE FR NL

11 records

Santa Rosa

Active

Prunus salicina Lindl. · Japanese plum

ES FR SI

12 records

Milonia

Active

Trifolium pratense L. · Red clover

Agroscope Reckenholz

AT FR LU

8 records

Mercedes

Active

Medicago sativa L. · Alfalfa

Limagrain Genetics Grandes Cultures SA (FR)

AT FR NL

9 records

Maro

Active

Trifolium pratense L. · Red clover

Dr. Rolf Gaue

DE EE LU

11 records

Meirilocra

Active

Rosa L. · Rose

Meilland, Marie L.|Antibes, France

FR IT NL

7 records

Lassik

Active

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S, 4000 Roskilde

BE DK NL

8 records

Indicus 1

Active

Lolium perenne L. · Perennial ryegrass

DLF Seeds A/S, 4000 Roskilde

DE FR LU

8 records

Ibex

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Forschungsanstalt Agroscope Reckenholz-Tänikon ART Herrn Dr. Beat Boller

DE FR LU

12 records

Fancy

Active

Lolium perenne L. · Perennial ryegrass

KWS SAAT SE and CO KGAA

DE FR UA

10 records

Explosion

Active

Lolium perenne L. · Perennial ryegrass

DSV Zaden Nederland B.V.

AT DE NL

10 records

Bargala

Active

Lolium perenne L. · Perennial ryegrass

PIET ARTS

DE FR PL

11 records

Apis

Active

Trifolium repens L. · White clover

FAL Station de Recherche Agronomique Federale (CH)

AT DE FR

11 records

Bernache

Active

Beta vulgaris Sugar Beet Group · Sugar beet

SAS FLORIMOND-DESPREZ Veuve et Fils

FR PL UA

8 records

Bokser

Active

Lolium perenne L. · Perennial ryegrass

Jan Wojciech Kaszuba / Anna Ostrowska

CZ DE PL

10 records

Boreal

Active

Festuca rubra L. · Red fescue

CANADIAN DEPT OF AGRICULTURE

FR NL SE

9 records

Arelio

Active

Lolium perenne L. · Perennial ryegrass

STELLING DIETER

DE NL UA

14 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.