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.
Malus domestica (Suckow) Borkh. · Apple
Domaine Public (FR)
Malus domestica (Suckow) Borkh. · Apple
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
PETOSEED CO
Beta vulgaris Fodder Beet Group · Mangelwurzel
Lietuvos agrarinių ir miškų mokslų centro filialas Žemdirbystės institutas
Malus domestica (Suckow) Borkh. · Apple
Beta vulgaris Sugar Beet Group · Sugar beet
Societe Europeenne de Semences NV/SA (BE)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
SEMILLAS FITO, S.A.
x Festulolium Aschers. et Graebn. · Festulolium
Hodowla Roślin Szelejewo sp. z o.o. \Instytut Genetyki Roślin Polskiej Akademii Nauk
Beta vulgaris Garden Beet Group · Garden beet
M. Gramatikova, R. Stamatova, Hr. Ducheva
Malus domestica (Suckow) Borkh. · Apple
VAN SENT V.WHIPPLE (US)
Malus domestica (Suckow) Borkh. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
RAGT SA (FR)
Malus Mill. · Apple
Jaroslav Tupy Institute of Experimental Botany / Otto Louda Institute of Experimental Botany
Trifolium pratense x Trifolium medium
Agricultural Research, Ltd. / Jakesová, Hana / Masaryk University / Research Institute for Fodder Crops, Ltd.
Beta vulgaris Sugar Beet Group · Sugar beet
NOVARTIS SEEDS A.B.
Beta vulgaris Sugar Beet Group · Sugar beet
NOVARTIS SEEDS A.B.
Malus domestica (Suckow) Borkh. · Apple
Prof. Dr. Christa Fischer / Dr. Peter Haugk im Institut für Obstzüchtung Dresden-Pillnitz
Citrus trifoliata L. · Trifoliate orange
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Beta vulgaris Sugar Beet Group · Sugar beet
LION SEEDS
Festuca pratensis Huds. · Meadow fescue
Ing. Hana Jakešová, CSc. (CZ)
Beta vulgaris Sugar Beet Group · Sugar beet
WIELKOPOLSKA HODOWLA BURAKA CUKROWEGO SP.Z.O.O
Malus domestica (Suckow) Borkh. · Apple
SEDOV EVGENIJ NIKOLAEVICh / SEROVA ZOYa MIHAJLOVNA / SEDYShEVA GALINA ALEKSEEVNA / ZhDANOV VLADILEN VASIL'EVICh / DOLMATOV EVGENIJ ALEKSEEVICh
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Beta vulgaris Fodder Beet Group · Mangelwurzel
Florimond Desprez Veuve et Fils, FR