Merton Thornless
ActiveRubus L. · Blackberry
Variety traits
Rubus L.
A trait representing the intensity of development of the aerial part and the root system, evaluated by shoot height and diameter, as well as their shoot-forming capacity.
In the reference 13 varieties crop Blackberry, where this is mentioned in the description.
Vigor in Rubus L. is determined by a complex of biometric indicators: shoot height, shoot diameter, and the intensity of shoot formation. In breeding, a scoring scale from weak to strong is used, reflecting the productivity potential and bush architecture.
High vigor, reaching 2.5–3 meters per season in blackberries, requires the use of trellises and thorough pruning. The intensity of bush development directly affects the planting scheme, nitrogen fertilizer application rates, and the labor required for plantation maintenance.
General information about the subject — on the page Vigor.
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.
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
SCHIMMELPFENG| Hermann Schimmelpfeng / LAUN| Dipl.Ing. N. Laun Lehrstuhl fuer Obstbau der TU Muenchen
Rubus L. · Blackberry
Rusijos nejuodžemio zonos mokslo tyrimo institutas
Rubus L. · Blackberry
Ilario Ioriatti c/o Berryplant
Rubus L. · Blackberry
MOORE| J.N. Moore c/o University of Arkansas
Rubus L. · Blackberry
Maria Maddalena Grisenti Berryplant
Rubus L. · Blackberry
HAEBERLI| Haeberli Obst- und Beerenzentrum AG
Rubus L. · Blackberry
Dr. Rudolf Bauer (+)
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry
Rubus L. · Blackberry