Variety traits
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.
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.
Trifolium pratense L. · Red clover
DLF Trifolium Hladke Zivotice, s.r.o. (CZ)
Lolium perenne L. · Perennial ryegrass
Zelder BV (NL)
Lolium perenne L. · Perennial ryegrass
ILVO PLANT(APPLIED GENETICS+BREEDING)
Lolium x hybridum Hausskn. · Hybrid ryegrass
FAL Station de Recherche Agronomique Federale (CH)/Delley Semences et Plantes SA (CH)
Lolium multiflorum Lam. · Italian ryegrass
JOORDENS
Lolium perenne L. · Perennial ryegrass
Zelder B.V.
Lolium perenne L. · Perennial ryegrass
RAGT 2N S.A.S
Lolium perenne L. · Perennial ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Trifolium pratense L. · Red clover
DLF SEEDS A/S
Trifolium pratense L. · Red clover
Oseva Uni a.s., CZ
Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass
ILVO-PLANT 39
Lolium perenne L. · Perennial ryegrass
DLF Seeds A/S, 4000 Roskilde
Lolium perenne L. · Perennial ryegrass
VANDERHAVE GRASSES B.V.
Lolium perenne L. · Perennial ryegrass
Yan Lipins`ki, Yeshi Radvans`ki, Zihmunt Fras, Hrahyina Vaida-Slipers`ka, Cheslav Novits`ki,
Lolium perenne L. · Perennial ryegrass
DLF SEEDS A/S
Lolium perenne L. · Perennial ryegrass
ILVO-PLANT 39
Beta vulgaris Sugar Beet Group · Sugar beet
SAS FLORIMOND-DESPREZ Veuve et Fils
Lolium perenne L. · Perennial ryegrass
DLF-Trifolium A/S
Lolium perenne L. · Perennial ryegrass
Limagrain Nederland B.V.
Lolium perenne L. · Perennial ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG. Herrn Dr. Martin Frauen / Wilbert Luesink
Lolium perenne L. · Perennial ryegrass
Zelder BV (NL)
x Festulolium Aschers. et Graebn. · Festulolium
DLF Seeds A-S, DK
Lolium perenne L. · Perennial ryegrass
ZWAAN AND DE WILJES
Lolium perenne L. · Perennial ryegrass
DLF Seeds, s.r.o., CZ