Passio Red
WithdrawnTulipa L. · Tulip
Schouten
Variety traits
Tulipa L.
A key morphological trait of the tulip determined by the concentration of anthocyanins, flavonols, and carotenoids. Assessment is conducted visually at full bloom, taking into account pigment intensity, color distribution patterns, and the presence of additional coloration elements.
In the reference 442 varieties crop Tulip, where this is mentioned in the description.
International standards based on descriptive color scales are used to evaluate tulip petal color. Variety descriptions document both the base color of the perianth segments and the presence of secondary features such as margins, streaks, spots, or specific coloration of the base.
Biologically, the coloration is determined by the ratio of anthocyanins, which provide red and purple hues, and flavonols and carotenoids, which are responsible for the yellow spectrum. It is essential for the agronomist to differentiate varietal variegation from pathological symptoms caused by dangerous viruses that require roguing.
Color saturation depends directly on growing conditions, including light levels and the availability of mineral nutrients, particularly potassium. The stability and expression of this trait are defining criteria during variety trials and the assessment of ornamental value.
General information about the subject — on the page Flower color.
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.
Tulipa L. · Tulip
Schouten
Tulipa L. · Tulip
Remarkable C.V.
Tulipa L. · Tulip
Boltha B.V.
Tulipa L. · Tulip
W. van Lierop & Zonen B.V.
Tulipa L. · Tulip
Mastenbroek Breeding Rights B.V.
Tulipa L. · Tulip
Silva Tarouca Research Institu
Tulipa L. · Tulip
Inra Innovations
Tulipa L. · Tulip
Remarkable C.V.
Tulipa L. · Tulip
Lybo Veredeling
Tulipa L. · Tulip
Paul Bijman
Tulipa L. · Tulip
G. Koomen
Tulipa L. · Tulip
Gebr. Bakker Beheer B.V.
Tulipa L. · Tulip
G. Buis Bloembollen B.V.
Tulipa L. · Tulip
Van der Gulik B.V.
Tulipa L. · Tulip
Snoek
Tulipa L. · Tulip
Gebroeders Hulsebosch B.V.
Tulipa L. · Tulip
W. van Lierop & Zonen B.V.
Tulipa L. · Tulip
Marax Tulips V.O.F.
Tulipa L. · Tulip
Mastenbroek Bloembollen B.V./Vriend Cultures B.V.
Tulipa L. · Tulip
Instytut Uprawy Nawożenia i Gleboznawstwa Państwowy Instytut Badawczy
Tulipa L. · Tulip
Gebr. Boon Hem B.V.
Tulipa L. · Tulip
Lybo Veredeling
Tulipa L. · Tulip
Mastenbroek Breeding Rights B.V.
Tulipa L. · Tulip
Maveridge International B.V.