Variety traits
Flower fragrance is the aggregate of volatile organic compounds produced by a plant to attract pollinators, serving as an important qualitative ornamental trait of a variety.
Mentioned in descriptions 5 448 varieties reference book.
Flower fragrance manifests as a specific scent resulting from the synthesis of volatile essential oils. This trait plays a functional role in attracting insect pollinators and serves as an important factor of a variety's ornamental value, determining its consumer appeal in floriculture.
Fragrance intensity is assessed during variety trials using an organoleptic method involving intensity scales or scoring systems, as there are no universally accepted physical or chemical units of measurement. The evaluation takes into account both the presence of the scent and its qualitative characteristics within the scope of the plant's overall ornamental quality.
The expression of the trait depends on environmental conditions, including light intensity, water balance, and soil nutrient availability. The level of aromatic compounds varies depending on the bud development stage and the time of day, and can also be suppressed by agronomic factors, such as excessive nitrogen fertilization.
Genetically, fragrance is a complex trait determined by a set of genes, which often competes with other qualities, such as flower shape or resistance. Breeding may be directed toward prioritizing external parameters; therefore, the degree of fragrance expression is not always a stable characteristic.
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.
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Rosa L. · Rose
R HARKNESS and CO LTD
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Hoffmann
Pastinaca sativa L. · Parsnip
Semo, CZ
Kalanchoe Adans. · Kalanchoe
Ike Vlielander
Rhododendron L. · Azalea
Uosukainen, Marjatta
Rosa L. · Rose
DICKSON| Pat Dickson c/o Dickson Nurseries Limited
Buddleja L. · Buddleia
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Vitis vinifera L. · Common grape vine
INCONNU (FR)
Citrus maxima (Burm.) Merr. · Pomelo
Soost Robert K. (US)/Cameron James W. (US)
Rosa L. · Rose
KORDES' SOEHNE| W. Kordes' Soehne Rosenschulen GmbH & Co KG
Tulipa L. · Tulip
Testcentrum voor Siergewassen B.V.
Rosa L. · Rose
Poulsen Roser A/S
Rosa L. · Rose
CHRISTIAN EVERS
Rosa L. · Rose
H.C. Swim & J.E. Christensen
Rosa L. · Rose
H.C.A. DE GROOT (CD)
Loropetalum chinense (R. Br.) Oliv. · Chinese fringe flower
Plant Development Services Inc. (PDSI Inc.)
Rosa L. · Rose
H.C.A. DE GROOT (CD)
Dianthus caryophyllus L. · Carnation
P.Kooij & Zonen B.V.
Syringa meyeri C. K. Schneid. · Meyer lilac
ANDRE VAN NIJNATTEN
Syringa meyeri C. K. Schneid. · Meyer lilac
ANDRE VAN NIJNATTEN
Prunus laurocerasus L. · Cherry laurel
Gábor Péter Németh
Freesia Eckl. ex Klatt · Freesia
van Zanten Plants b.v
Chrysanthemum x morifolium Ramat. · Florist's daisy
Nicolaas P. Dekker