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.

Alpigala

Active

Malus domestica (Suckow) Borkh. · Apple

THIERRY CLOS

9 records

Abergreen

Active

Lolium perenne L. · Perennial ryegrass

Aberystwyth University (IBERS)

8 records

Aberzeus

Active

Lolium perenne L. · Perennial ryegrass

Aberystwyth University (IBERS)

8 records

African Red

Active

Malus domestica (Suckow) Borkh. · Apple

ARC INFRUTEC NIETVOORBIJ

7 records

AberSwan

Active

Trifolium repens L. · White clover

Aberystwyth University (IBERS)

7 records

Aberelf

Terminated

Lolium perenne L. · Perennial ryegrass

INSTITUTE OF GRASSLAND AND ENVIRONMENTAL RESEARCH

8 records

ZESH004

Active

Actinidia chinensis Planch. x Actinidia deliciosa (A. Chev.) C. F. Liang & A. R. Ferguson

The New Zealand Institute for Plant and Food Research

5 records

Y356

Active

Actinidia chinensis Planch. · Kiwifruit

Skelton Donald Alfred

6 records

NCHA5

Active

Hydrangea arborescens L. · Smooth hydrangea

THOMAS GREEN RANNEY

5 records

RGT Beauval

Active

Lolium perenne L. · Perennial ryegrass

RAGT 2N S.A.S

DE FR

7 records

Cicero

Terminated

Lolium perenne L. · Perennial ryegrass

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink

BE DE

6 records

Roberta

Protection expired

Lolium multiflorum Lam. · Italian ryegrass

DLF SEEDS A/S

IT NL

5 records

Lubina

Terminated

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

Slechtitelská stanice Hladké Zivotice spol.s.r.o.

AT CZ EE

5 records

Lemtal

Active

Lolium multiflorum Lam. · Italian ryegrass

ILVO Plant

DE IE NL

7 records

World's Favourite

Active

Tulipa L. · Tulip

Veredeling van Tuinbouwgewasse

BE DE FR NL

4 records

Triplex

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

Betaseed Inc. (US)

FR GR HU

4 records

Tintin

Terminated

Beta vulgaris Fodder Beet Group · Mangelwurzel

Maribo Seed International ApS

DE DK FR PL

4 records

Sixtus

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo, DK

HR RO

4 records

Sabalan

Terminated

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

P.BREED.INST.WALES

DK ES FR

4 records

Pilot

Active

Beta vulgaris Sugar Beet Group · Sugar beet

STRUBE HERMANN| Dr. Hermann Strube

DE LT

4 records

Melworld

Active

Lolium multiflorum Lam. · Italian ryegrass

DEPT FOR PLANT BREEDING and GENETICS -ILVO

6 records

Moroto

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

Maribo Seed International ApS

DE PL RO

5 records

Marilina KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

PETER MADLAINA, HAUER DIETRICH

DE HU UA

5 records

Ligrande

Protection expired

Lolium multiflorum Lam. · Italian ryegrass

Dipl.Ing.agr. Heiner Busch in Fa. Deutsche Saatveredelung AG

DE SK

9 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.