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.

Alkantara

Active

Citrus L. · Citrus

SANTO RECUPERO,GIUSEPPE RUSSO,GIUSEPPE REFORGIATO RECUPERO,CITRICOM IP (PTY) LTD.

7 records

Peggy

Active

Trifolium pratense L. · Red clover

Linda Öhlund

FI SE

7 records

Elvi

Active

Secale cereale L. · Rye

Leida Kask 60%,Kaljo Kask 15%,Virve Küüts 10%,Ilme Tupits 10%,Vahur Kukk 5%

EE FI

7 records

Elmet

Active

x Festulolium Aschers. et Graebn. · Festulolium

ABERYSTWYTH UNIVERSITY

6 records

Stayman Winesap

Active

Malus domestica (Suckow) Borkh. · Apple

STAYMAN (US)

ES FR

4 records

Agraco-812

Active

Lolium multiflorum Lam. · Italian ryegrass

AGRAR SEMILLAS, S.A.

6 records

Winter Hawk

Active

Lolium multiflorum Lam. · Italian ryegrass

Oregro Seeds

4 records

N40W-6-3

Active

Citrus reticulata Blanco · Mandarin orange

JUDE W. GROSSER

4 records

Meltra R.v.P.

Terminated

Lolium perenne L. · Perennial ryegrass

ILVO-PLANT 39

3 records

LWD 699

Terminated

Lolium multiflorum Lam. · Italian ryegrass

BARENBRUG HOLLAND B.V.

4 records

Lovrin 25

Active

Lotus corniculatus L. · Bird's-foot trefoil

RECHITEAN DORINHORABLAGA NICOLAE MARINELBOSTAN CRISTIANCOJOCARIU LUMINITARAIN PETRUBUZNA CIPRIAN CALINRECHITEAN ISABELA ILDIKO

4 records

Red head

Terminated

Trifolium pratense L. · Red clover

D J Van der Have BV (NL)

2 records

Meroa R.v.P.

Active

Lolium multiflorum Lam. · Italian ryegrass

ILVO Plant

2 records

KW 915

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

2 records

IGP 2

Active

Lolium multiflorum Lam. · Italian ryegrass

PGG Wrightson Seeds South America

5 records

LO 163-P

Active

Secale cereale L. · Rye

WILDE PEER

3 records

Gran-Tetra

Terminated

Lolium multiflorum Lam. · Italian ryegrass

GUERRESI SEMENTI S.R.L.

2 records

VARO 203

Active

Vitis vinifera L. · Common grape vine

Avichai Perl^^^Oded Degani^^^Irina Dynkin^^^Nachman Sahar^^^Tatiana Okun^^^Arie Sarfian^^^Hanan Bazak

3 records

TR-1

Active

Citrus x paradisi Macfad. · Grapefruit

TEXAS A&M UNIVERSITY AGRI

4 records

Moshan No 4

Active

Actinidia chinensis Planch. · Kiwifruit

Hongwen Huang^^^Renhuang Huang^^^Shengmei Wang^^^Xianwei Wu^^^Zhengwang Jiang^^^Zhonghui Zhang^^^Shurong Hong^^^Hanquan Huang

2 records

Jonagored Supra

Active

Malus domestica (Suckow) Borkh. · Apple

BE CZ FR HU NL PL

18 records

Mutsu

Active

Malus domestica (Suckow) Borkh. · Apple

ES FR HU NL PL RO +1

23 records

Barvestra

Protection expired

Lolium perenne L. · Perennial ryegrass

AT DE DK ES HR NL +1

11 records

Temara

Active

Trifolium pratense L. · Red clover

AT DE FR HR SI SK

11 records

1 2 ... 52 53 54 55 56 57 58 ... 152 153 Next

Jump to page 22 44 45 65 66 87 109 131

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

All terms →

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.