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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.

Polim

Active

Lolium perenne L. · Perennial ryegrass

DLF-Seeds A/S

AT BE DE DK FR LU +2
18 records

Montagne

Active

Lolium perenne L. · Perennial ryegrass

Mommersteeg International BV (NL)

CZ DK EE ES FR LT +2
14 records

Magella

Active

Lolium perenne L. · Perennial ryegrass

VEREDELINGSBERIJF

AT DE DK ES FR IE +2
13 records

Rajah

Active

Trifolium pratense L. · Red clover

DLF-TRIFOLIUM A/S

DK EE ES HR LV SE +1
16 records

Marmota

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Forschungsanstalt fur Agrarokologie und Landwirtschaft, CH-8046 Zurich

AT CZ DE DK FR LU +1
15 records

Merci

Active

Lolium perenne L. · Perennial ryegrass

Limagrain Genetics BV (NL)

CZ DE DK FR NL PL +1
17 records

Harmonie

Active

Trifolium pratense L. · Red clover

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Dr. Rolf Gaue

AT BE DE EE FR LU +1
19 records

Lacerta

Active

Lolium perenne L. · Perennial ryegrass

Forschungsanstalt Agroscope Reckenholz-Tänikon ART Herrn Dr. Beat Boller

CZ DE DK EE FR PL
16 records

Dorcas

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Zelder Holland(NL)

DE FR LU NL PL SI
16 records

Liflex

Active

Trifolium repens L. · White clover

Heinrich Busch^^^FEUERSTEIN ULF

AT DE FR NL UA
18 records

Jonagored

Active

Malus Mill. · Apple

Morren-De Coster, J.

DK IT PT SE SK
12 records

Zesy002

Active

Actinidia chinensis Planch. · Kiwifruit

Zespri Group Ltd.

12 records

KWS Eterno

Active

Secale cereale L. · Rye

WILDE Peer, DE

AT DE DK EE PL UA
19 records

Smart Iberia KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Werner Beyer Monica Weber Maik Gertz Dietrich Hauer

DE DK ES LT SE UA
11 records

Lisette

Active

Phacelia tanacetifolia Benth. · Lacy phacelia

EURO GRAS| Euro Grass Breeding GmbH & Co. KG

AT CZ DE EE LU LV +2
13 records

Talgo

Active

Lolium perenne L. · Perennial ryegrass

Zelder Holland(NL)

CZ DE HR PL SE SI +2
12 records

Danergo

Active

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

DLF-Trifolium (DK)

AT BE DK EE HU LU +1
10 records

Wendy

Active

Lolium perenne L. · Perennial ryegrass

VAN DER HAVE B. V.

DE DK ES FR IE IT +1
13 records

Plaisir

Active

Lolium perenne L. · Perennial ryegrass

Veronique Mercier

CZ DE EE FR LT PL +1
16 records

Livonne

Active

Lolium perenne L. · Perennial ryegrass

Euro Grass Breeding GmbH Co. KG

CZ DE DK EE FR PL +1
13 records

Kvarta

Active

Trifolium pratense L. · Red clover

Oseva Praga (CZ)

AT CZ DE HR PL SI +1
12 records

Vesuvius

Active

Lolium perenne L. · Perennial ryegrass

Zelder BV (NL)

DE DK FI FR NL UA
17 records

Citadel

Active

Lolium perenne L. · Perennial ryegrass

Mommersteeg International BV (NL)

AT DE ES FR IE PT +1
12 records

Turandot

Active

Lolium perenne L. · Perennial ryegrass

DLF-Seeds A/S

AT DE DK HR LT LV
13 records

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