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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.

Amba

Active

Dactylis glomerata L. · Cocksfoot

DLF-TRIFOLIUM A/S

AT DK EE ES HR IE +1
18 records

Montando

Protection expired

Lolium perenne L. · Perennial ryegrass

MOMMERSTEEG INTERNATIONAL

AT DE DK EE HR IE +4
20 records

Vesna

Active

Trifolium pratense L. · Red clover

Ślechtitelska stanice Hladké Životice, s.r.o.

AT CZ EE FR HR LT +3
19 records

SU Arvid

Active

Secale cereale L. · Rye

Saaten-Union

CZ DE DK EE LT PL +2
18 records

Zanzibar

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Sesvanderhave, B

BE DK ES FR HR LT +2
14 records

Bastion

Protection expired

Lolium perenne L. · Perennial ryegrass

Mommersteeg International BV (NL)

AT DE DK ES FR IE +2
16 records

Condesa

Active

Lolium perenne L. · Perennial ryegrass

VANDERHAVE GRASSES B.V.

AT DE DK ES FR IE +2
20 records

Kentaur

Active

Lolium perenne L. · Perennial ryegrass

Plant Breeding Hladke Zivotice, s.r.o. (CZ)

AT CZ DE FR LU PL +1
18 records

Pardus

Active

Festuca pratensis Huds. · Meadow fescue

Forschungsanstalt Agroscope Reckenholz-Tänikon ART

AT DE FI LU SI UA
16 records

Amos

Active

Trifolium pratense L. · Red clover

PLANTBREEDING STATION

AT CZ DE FR SE SK
17 records

Prana

Active

Lolium perenne L. · Perennial ryegrass

Zelder BV (NL)

AT FR PL UA
16 records

Scilate

Active

Malus domestica (Suckow) Borkh. · Apple

White Allan

FR
15 records

Matador

Active

Secale cereale L. · Rye

PHP PETERSEN

CZ DE DK EE HU LT +3
22 records

Juventus

Active

Lolium perenne L. · Perennial ryegrass

Green Genetics BV (NL)

DE EE FR HU LT NL +4
16 records

Stella

Active

Festuca pratensis Huds. · Meadow fescue

INNOSEEDS| Innoseeds B.V.

AT CZ DE EE FR LV +3
16 records

Barrage

Active

Lolium perenne L. · Perennial ryegrass

BARENBRUG HOLLAND

CZ DE EE HR HU NL +2
18 records

Madera

Active

Lolium perenne L. · Perennial ryegrass

VAN DER HAVE B. V.

CZ DK EE FR IE NL +2
15 records

Jonagold

Active

Malus domestica (Suckow) Borkh. · Apple

Station de Geneva (US)

CZ ES FR HU NL PL +2
22 records

Rafzubin

Active

Malus domestica (Suckow) Borkh. · Apple

Walter Hauenstein-Roschli

BE CZ DE ES FR NL +1
22 records

Lipresso

Active

Lolium perenne L. · Perennial ryegrass

FEUERSTEIN ULF^^^Heinrich Busch

AT CZ DE EE IT LT +1
18 records

Bareuro

Active

Lolium perenne L. · Perennial ryegrass

Barenbrug Holland BV, 6501 BH Nijmegen

CZ DE DK HU LU NL +1
17 records

Atlantis

Active

Trifolium pratense L. · Red clover

Rolf Gaue^^^Martin Frauen

AT BE CZ DE EE FR +1
22 records

Lofa

Active

x Festulolium Aschers. et Graebn. · Festulolium

SS Hladkè Zivotico S.R.O.

CZ EE HR RO SK
16 records

Baigent

Active

Malus domestica (Suckow) Borkh. · Apple

PAUL BROOKFIELD_ / BARBARA BROOKFIELD_

FR NL
18 records

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