HISUN
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
van Dijk Roy Robin
Variety traits
Lodging is the displacement of stems from a vertical position or their breakage caused by root or stem factors. It is a critical variety trait that directly affects yield losses and harvesting efficiency.
Mentioned in descriptions 50 198 varieties reference book.
Lodging is a deviation of plants from a vertical position, which is categorized into root lodging and stem lodging. In the first case, tilting occurs due to weak root anchorage in the soil, while in the second, the stem bends or breaks due to insufficient straw strength under the load of the ear mass or stand density.
Lodging resistance is evaluated during state variety trials visually on a five-point scale before harvest, where high scores correspond to high resistance, and low scores to a tendency for crop collapse. Additionally, methods for measuring stem flexibility and calculating bending strength are employed.
This variety trait depends on the interaction between the genotype and growing conditions. Genetic resistance is determined by the presence of semi-dwarf genes, straw diameter, the strength of anatomical tissues, and lignin content, whereas external factors include nitrogen nutrition, seeding rate, and weather conditions.
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
Cannabis sativa L. · Hemp
Jacopo Vladimiro Paolini
Hydrangea paniculata Siebold · Panicled hydrangea
Hydrangea Breeders Association B.V.
Hydrangea paniculata Siebold · Panicled hydrangea
Hydrangea Breeders Association B.V.
Lemna minor L. · Common duckweed
Hermann-Josef Wilhelm^^^Maria Rogmans
Lilium L. · Lily
Testcentrum voor Siergewassen B.V.
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Kolster Holding B.V.^^^Horteve Breeding B.V.
Hydrangea paniculata Siebold · Panicled hydrangea
Guido Rouwette
Astilbe x arendsii H. Junge · Arends astilbe
Verduin Harrie
Lupinus L. · Lupine
Eternal Plant Boijl B.V.
Delphinium x belladonna hort. ex Bergmans · Belladonna delphinium
Eternal Plant Boijl B.V.
Cannabis sativa L. · Hemp
Jacopo Vladimiro Paolini
Gladiolus L. · Gladiolus
M.G.T. Snoek Beheer B.V.
Lobelia x speciosa Sweet
Nori Pope
Zantedeschia Spreng. · Arum-lily
Dümmen Group B.V.
Echinacea purpurea (L.) Moench · Purple coneflower
HARINI KORLIPARA
Dahlia Cav. · Dahlia
Johanna G.H. van Haaster
Hydrangea arborescens L. · Smooth hydrangea
Rouwette Guido
Tulipa L. · Tulip
Testcentrum voor Siergewassen B.V.
Dahlia Cav. · Dahlia
van Haaster Johanna G. H.|De Hillegom, NL
Dahlia Cav. · Dahlia
Pim Kaagman c/o Goldsmith Seeds Europe B.V.
Monarda L. · Bee balm
Hans A. Hansen
Kalanchoe blossfeldiana Poelln. · Flaming Katy
Timothy J.H. Hoogkamp
Monarda didyma L. · Bee balm
Dümmen Group B.V.