HIHALO59
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
van Dijk Roy Robin
Variety traits
Plant height is a key varietal trait that determines lodging resistance, suitability for mechanical harvesting, and potential yield. This indicator is genetically determined but manifests depending on environmental conditions and agronomic practices.
Mentioned in descriptions 20 560 varieties reference book.
Plant or bush height is a varietal parameter manifested as the physical size of the stem from the soil surface to its apex or the point of inflorescence attachment. In practice, this trait determines the resistance of crops to lodging under the influence of wind and precipitation, and also dictates technological cultivation requirements, such as the need for trellising, pruning, or the use of specific planting patterns.
Plant height depends on the genetic characteristics of the variety; however, it varies significantly under the influence of external factors, including soil fertility, nitrogen application rates, plant density, as well as weather conditions and the presence of stressors such as diseases and pests. Intensive short-stature varieties often possess a higher harvest index, which positively affects crop productivity.
Evaluation of height is conducted within the framework of variety trials according to regulated methodologies by measuring with a ruler during strictly defined crop development phases, for example, during heading, flowering, or before harvest. When analyzing varieties, consideration is given not only to the mean value in centimeters but also to the stability of the trait across different years, expressed through a coefficient of variation, which indicates the degree of genotype influence on plant development.
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.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
van Dijk Roy Robin
Clematis L. · Clematis
Poulsen Roser AS, DK - 3480 Fredensborg
Xerochrysum bracteatum (Vent.) Tzvelev · Strawflower
van Kleinwee Theodorus Cornelis Maria|Hoorn, NL
Salvia coccinea Buc'hoz ex Etl.
DE WET PLANT BREEDERS (PTY) LTD
Helleborus niger x Helleborus x hybridus
Josef Heuger
Dahlia Cav. · Dahlia
Verwer-Dahlia's B.V.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Roy Robin van Dijk
Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine
Hofmann, Birgit Christa
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Philip J. Stewart^^^Omar Carrillo Mendoza^^^Xiomara Ruiz Ruiz
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Fruehwirth Franz
Impatiens walleriana Hook. f. · Busy Lizzie
Jonkers Johanna B.|Andijk, NL
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Agapanthus L'Hér. · Lily of the Nile
DE WET PLANT BREEDERS (PTY) LTD
Dahlia Cav. · Dahlia
Ruigrok Sanne Helena
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Tobias Dümmen
Calibrachoa Cerv. · Calibrachoa
Tobias Dümmen
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Clematis L. · Clematis
Raymond J. Evison Ltd.^^^Poulsen Roser A/S
Euphorbia characias L. · Mediterranean spurge
Gina Falcetti
Hydrangea quercifolia W. Bartram · Oakleaf hydrangea
TIMOTHY D WOOD
Leucanthemum x superbum (Bergmans ex J. W. Ingram) D. H. Kent · Shasta daisy
Graham N. Brown
Dracaena fragrans (L.) Ker Gawl. · Corn plant
William Vásquez Ulatel