TONDA GENTILE DI VITERBO
ActiveCorylus avellana L. · Common hazel
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.
Corylus avellana L. · Common hazel
Chrysanthemum L. · Chrysanthemum
GLICENSTEIN LEON
Kalanchoe blossfeldiana Poelln. · Flaming Katy
FGB B.V.
Magnolia x soulangeana Soul.-Bod. · Saucer magnolia
VOSYKA PETR
Phygelius x rectus Coombs
Janet N. Egger
Petunia Juss. · Petunia
Brent Barnes
Hybrids between Salvia guaranitica and S. splendens
TAKII & CO LTD
Hylotelephium tatarinowii (Maxim.) H. Ohba x H. telephium (L.) H. Ohba
Hans A. Hansen
Vaccinium corymbosum L. · Highbush blueberry
Rolfe Nominees Pty Ltd
Prunus avium (L.) L. · Sweet cherry
Washington State University Research Foundation
Chrysanthemum L. · Chrysanthemum
Mark A. Smith
Chrysanthemum L. · Chrysanthemum
Mark A. Smith
Alstroemeria L. · Alstroemeria
Horti Partners V.O.F.
hybrids between Pelargonium peltatum and Pelargonium zonale · Ivy-leaved geranium
Floha V.O.F
Kalanchoe Adans. · Kalanchoe
Knud Jepsen A/S
Verbena L. · Vervain
Ushio Sakazaki
Echinacea purpurea x Echinacea tennesseensis
HARINI KORLIPARA
Scoparia dulcis L.
Yasuyuki Murakami
Petunia Juss. · Petunia
Yasuko Isobe
Pericallis x hybrida (Scheidw.) B. Nord. · Cineraria
Kiyoshi Miyazaki
Pericallis x hybrida (Scheidw.) B. Nord. · Cineraria
Kiyoshi Miyazaki
Pelargonium grandiflorum (Andrews) Willd. · Regal pelargonium
Gartneriet Tingdal ApS
Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine
Suntory Flowers Europe B.V.
Mandevilla sanderi (Hemsl.) Woodson · Brazilian jasmine
Tomoya Misato