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.

Lakeland

Active

Trifolium pratense L. · Red clover

WISCONSIN (US)

2 records

KPC Laška

Active

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

KIS

2 records

Karo

Terminated

Trifolium pratense L. · Red clover

Malopolska Hodowla Roslin Spolka z o.o.

2 records

Kajana

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

Malopolska Hodowla Roslin Spolka z o.o.

3 records

Jarko

Terminated

Beta vulgaris Fodder Beet Group · Mangelwurzel

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

2 records

Itarzi

Terminated

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

DLF Trifolium A-S, DK

2 records

JAROSLAV

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Khermann Shtrube

2 records

Karmen

Active

Fagopyrum esculentum Moench · Buckwheat

Tierieshonok Nataliia Volodymyrivna, Kadyrov Roman Mykhailovych, Tyhorieva Halyna Mykolaivna, Luzhyns`ka Nataliia Oleksandrivna, Anokhina Tetiana Oleksandrivna,

3 records

Irena

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

SEITZER| Dr. Josef Franz Seitzer in Fa. KWS SAAT AG / JANSEN| Dr. Rudolf Jansen in Fa. KWS SAAT AG / DIENER| Dr. Guenter Diener / LOOCK| Dr. Andreas Loock in Fa. KWS SAAT AG

3 records

Intuicion

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

NOVARTIS SEEDS A.B.

2 records

Jaschin

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Strube, D

3 records

Jamona

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KUTNOWSKA HODOWLA BURAKA CUKROWEGO Sp.z o.o.

2 records

Isidora

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

HILLESHOG A.B.

2 records

Himalaya

Protection expired

Beta vulgaris Fodder Beet Group · Mangelwurzel

MARIBO SEED

2 records

Hatsuzakura

Active

Tulipa L. · Tulip

2 records

Iljo

Terminated

Lolium perenne L. · Perennial ryegrass

ILVO-PLANT 39

2 records

IK 1263

Protection expired

Beta vulgaris Sugar Beet Group · Sugar beet

K. Uchkunova, I. Uchkunov, G. Kikindonov, Tsv. Kikindonov

3 records

Hedma KWS

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS Saat AG, DE

2 records

Hamidori

Active

Trifolium pratense L. · Red clover

SNOW BRAND SEED Co. Ltd (JP)

2 records

Gwendolina KWS

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

2 records

Grise Dieppois

Active

Malus domestica (Suckow) Borkh. · Apple

Domaine Public (FR)

2 records

Gribello

Active

Lolium perenne L. · Perennial ryegrass

INVEST GRZEGORZ DABROWSKI

2 records

Grasslands Bill

Active

Lolium multiflorum Lam. · Italian ryegrass

GRASSLAND TECHNOLOGY LTD

3 records

Gran

Terminated

Lolium multiflorum Lam. · Italian ryegrass

MIKULSKI| Wojciech Mikulski c/o Hodowla Roslin Szelejewo / PIOTTROWSKI| W. Piotrowski c/o Hodowla Roslin Szelejewo / RATAJCZYK| M. Ratajczyk

3 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.