Variety traits
Trifolium pratense L.
Ploidy determines whether a red clover cultivar is classified as a diploid (2n=14) or tetraploid (4n=28) form, which significantly impacts productivity, nutritional value, and biological robustness of the crop.
In the reference 252 varieties crop Red clover, where this is mentioned in the description.
Diploid forms of red clover correspond to the natural ploidy level of wild-growing plants. Tetraploid forms, obtained through artificial polyploidization, possess morphological distinctions: larger sizes of flowers, inflorescences, and thousand-seed weight. The corolla tube length in tetraploids ranges from 9–14 mm, whereas in diploids it varies from 8 to 10 mm, which affects pollination efficiency.
The transition to a tetraploid state increases the yield of green mass and dry matter. Such cultivars are characterized by better leafiness, higher protein and carotene content, and a lower proportion of fiber. Furthermore, tetraploids demonstrate advantages in winter hardiness and resistance to root rot and clover rot (Sclerotinia trifoliorum), though they have higher requirements for cultivation conditions.
General information about the subject — on the page Ploidy.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Trifolium pratense L. · Red clover
Forschungsanstalt Agroscope Reckenholz-Tänikon ART
Trifolium pratense L. · Red clover
Rijksstation Voor Plantenveredeling (BE)
Trifolium pratense L. · Red clover
DLF Seeds A-S, DK
Trifolium pratense L. · Red clover
Oseva Uni a.s., CZ
Trifolium pratense L. · Red clover
FAL Station de Recherche Agronomique Federale (CH)
Trifolium pratense L. · Red clover
Nilsson, Bengt
Trifolium pratense L. · Red clover
DLF Trifolium Hladke Zivotice, s.r.o. (CZ)
Trifolium pratense L. · Red clover
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Trifolium pratense L. · Red clover
Thierry Bourgoin
Trifolium pratense L. · Red clover
Oseva Uni a.s., CZ
Trifolium pratense L. · Red clover
Lantmannen ek for, SE 268-81 Svalov
Trifolium pratense L. · Red clover
SZABOLCS| Szabolcs-Tetra MAG Kft.
Trifolium pratense L. · Red clover
DEUTSCHE SAATVEREDELUNG AG
Trifolium pratense L. · Red clover
P.BREED.INST.WALES
Trifolium pratense L. · Red clover
Jogeva Plant Breeding Institute, Jõgeva alevik 48309
Trifolium pratense L. · Red clover
DLF SEEDS
Trifolium pratense L. · Red clover
VANDINTER SEMO B.V.
Trifolium pratense L. · Red clover
Wirén, Gunnar
Trifolium pratense L. · Red clover
SLECHTITELSKA STANICE HLADKE' ZIVOTICE S.R.O.
Trifolium pratense L. · Red clover
DLF SEEDS A/S
Trifolium pratense L. · Red clover
SELGEN A.S
Trifolium pratense L. · Red clover
Forschungsanstalt Agroscope Reckenholz-Tänikon ART
Trifolium pratense L. · Red clover
RAGT 2N S.A.S
Trifolium pratense L. · Red clover
Saatzucht Steinach GmbH (DE)