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.
x Festulolium Aschers. et Graebn. · Festulolium
Latvijas Biozinātņu un tehnoloģiju universitāte
Secale cereale L. · Rye
Korotych Pavlo Pylypovych, Zarva Olena Ivanivna, Voloshyn Volodymyr Mykolaiovych, Mazur Zoia Oleksandrivna,
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
D.J.VAN DER HAVE
Iris L. · Iris
Jac. H. van den Berg B.V.
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
Citrus reticulata Blanco · Mandarin orange
IVIA-LNL-PAG-JCI-JJR-JPL-COC-ANL
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Danko Hodowla Roslin Sp.z.o.o.
Lolium multiflorum Lam. · Italian ryegrass
INAKTIV Euro Grass Breeding GmbH & Co. KG
Lolium x hybridum Hausskn. · Hybrid ryegrass
VAN DER HAVE B. V.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Danko Hodowla Roslin Sp.z.o.o.
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Deutsche Saatveredelung AG - DSV (DE)
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
CEBECO ZADEN B.V.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
JAMES C. MIKKELSEN
Citrus maxima x Citrus reticulata · Tangelo
Frederick G. Gmitter Jr
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Poznanska Hodowla Roslin Sp. z o.o
Tulipa L. · Tulip
Beerepoot B.V.
Trifolium pratense L. · Red clover
Saatzucht Steinach GmbH (DE)
Citrus reticulata Blanco · Mandarin orange
IVIA
Lolium perenne L. · Perennial ryegrass
Anelia Katova
Lolium perenne L. · Perennial ryegrass
Pastoral Improvements Ltd
Trifolium pratense L. · Red clover
L. DÆHNFELDT A/S
Citrus reticulata Blanco · Mandarin orange
IVIA/AVASA
Triticum aestivum L. · Bread wheat
UCASEF
Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass
Vilmorin SA (FR)