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.

Ernestina

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE ES FR IT LT

7 records

Coletta KWS

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK FR LT SE

8 records

Capri

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

Danisco semences SARL (FR)

CZ DK ES FR IT SE

7 records

Vigor

Protection expired

Lolium perenne L. · Perennial ryegrass

DEPT. PLANTENGENETICA - CLO - GENT

DE DK IE IT NL

10 records

Anduril

Terminated

Lolium perenne L. · Perennial ryegrass

RITZEMA| Dineke Ritzema c/o Dansk Planteforaedling A/S (DLF-Trifolium A/S)

CZ DE DK EE ES PL

8 records

Vetrovska

Active

Phacelia tanacetifolia Benth. · Lacy phacelia

Oseva Uni a.s.

AT CZ DE PL SK

8 records

Vermon

Active

Beta vulgaris Fodder Beet Group · Mangelwurzel

SAS FLORIMOND-DESPREZ Veuve et Fils

CZ DK FR NL

8 records

Tempus

Active

Trifolium pratense L. · Red clover

Oseva Uni a.s.

AT CZ DE PL SK

11 records

Sirius

Protection expired

Lolium perenne L. · Perennial ryegrass

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

AT CZ DE DK SK

9 records

SW Nexus

Active

Medicago sativa L. · Alfalfa

Svalöf Weibull (SE)

AT EE LT LV SE

10 records

Ninak

Active

Lolium multiflorum Lam. · Italian ryegrass

KONINKLIJKE KWEEKBED

DE NL PT

12 records

Fleetwood

Active

Medicago sativa L. · Alfalfa

SAATZUCHT STEINACH GmbH & Co KG (DE)

AT DE FR UA

9 records

Barelan

Protection expired

Lolium perenne L. · Perennial ryegrass

Barenbrug Holland BV (NL)

BE DE FR NL PL

13 records

Barfort

Protection expired

Lolium perenne L. · Perennial ryegrass

H.J.M. Barenbrug

AT DE FR HR NL

11 records

Cantalou

Active

Lolium perenne L. · Perennial ryegrass

Carneau Freres SA (FR)

CZ DE FR LU PL

8 records

Bardessa

Terminated

Lolium perenne L. · Perennial ryegrass

Theodorus P.M. op den Kamp

DE EE FR NL SE

13 records

Ajax

Terminated

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

DLF-TRIFOLIUM A/S

BE DK EE FI PL

7 records

Vercade

Terminated

Lolium perenne L. · Perennial ryegrass

FORCE SEEDS GMBH| Force Seeds GmbH

AT CZ DE PL

7 records

Spurt

Active

Trifolium pratense L. · Red clover

Oseva Uni a.s., CZ

AT CZ FR LU

9 records

Soraya

Active

Lolium perenne L. · Perennial ryegrass

Beat Boller (CH)

AT DE FR UA

11 records

Redding

Active

Lolium perenne L. · Perennial ryegrass

DLF-Seeds A/S

AT DE DK FR

11 records

Rozela

Active

Malus domestica (Suckow) Borkh. · Apple

Zima Jan, Louda Otto, Tupy Jaroslav,

CZ HU NL UA

14 records

Stefani

Terminated

Lolium perenne L. · Perennial ryegrass

DLF-Trifolium A/S

AT DE DK IE

9 records

Salamandra

Active

Lolium perenne L. · Perennial ryegrass

Beat Boller Agroscope

CZ DE FR LU

10 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.