H212904
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Hydrangea Breeders Association B.V.
Variety traits
Leafiness is an agronomic indicator reflecting the proportion of leaves in the total plant biomass, expressed as a percentage. It is of key importance for assessing the nutritional value of crops and the intensity of photosynthetic processes.
Mentioned in descriptions 13 493 varieties reference book.
Leafiness represents the ratio of leaf mass to the total mass of the plant's above-ground organs. This indicator is manifested through the ratio of leaf blades to stems, which directly determines the nutritional value of forage crops, as leaves contain significantly more vitamins and protein than stems.
The value of leafiness depends on the genetic characteristics of the variety, the current stage of plant development, and the applied agricultural practices. Generally, the proportion of leaves is higher at the beginning of the growing season and gradually decreases towards the flowering and maturation stages, when the mass of stems and generative organs increases.
During variety trials, leafiness is evaluated as part of the variety's agricultural utility through gravimetric analysis of green mass samples. High values are preferred for forage crops, while low values may indicate coarseness, which reduces digestibility and the nutritional quality of the product.
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
Hydrangea Breeders Association B.V.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Paul Ecke Ranch
Papaver orientale L. · Oriental poppy
Oudshoorn Hubertus Gerardus
Ilex crenata Thunb. · Japanese holly
Baumschulen Gebruder Barth GbR / Baumschulen Gebrüder Barth GbR
Clematis L. · Clematis
Poulsen Roser AS, DK - 3480 Fredensborg
Salvia L. · Sage
Petrus Hendricus Oudolf
Rosa L. · Rose
Rateau Jerome
Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch · Lindheimer's beeblossom
Syngenta Seeds B.V.
Hibiscus syriacus L. · Rose of Sharon
van Aart Boomwekerijen
Dianthus L. · Carnation
Whetman Pinks
Rosa L. · Rose
ALOYSIUS ANTONIUS JOSEPH HOOIJMAN (CD)
Rosa L. · Rose
Ullrich Clarisse
Rosa L. · Rose
Hooijman Aloysius A. J.
Gypsophila L. · Baby's breath
Hooijman Aloysius A. J.|Aalsmeer, NL
Phlox paniculata L. · Garden phlox
Ditoplant Export B.V.
Zantedeschia Spreng. · Arum-lily
PATTERSON FRANK
Dianthus L. · Carnation
Whetman John|Chudleigh, Devon, TQ13 0NH, GB
Pelargonium zonale (L.) L'Hér. · Horseshoe pelargonium
Michalik Andrea|Dresden, DE
Verbena L. · Vervain
Syngenta Crop Protection AG
Rosa L. · Rose
Société Nouvelle Pépinières et Roseraies Georges Delbard S.A.S.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Tobias Dümmen
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Tobias Dümmen
Dianella revoluta R. Br. · Spreading flax-lily
Todd Layt
Echinacea purpurea (L.) Moench · Purple coneflower
Petrus Hendricus Oudolf