Jo-Jo
ActivePrunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
10 August 2026
The variety is distinguished by an early flowering period, which, depending on climatic conditions, occurs at the end of March — beginning of April. During comparative trials, the variety demonstrated good yield, but was inferior to the standard variety «Stanley».
The fruits of the variety are characterized as relatively small in weight. Specific data on genetic resistance to diseases or resistance to lodging are absent in the publications.
2 jurisdictions
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
More 2 records protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Prunus domestica L. · European plum
Walter Hartmann c/o Universität Hohenheim
Prunus domestica L. · European plum
Hartmann Walter
Prunus domestica L. · European plum
Walter Hartmann
Prunus domestica L. · European plum
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Prunus domestica L. · European plum
Prunus domestica L. · European plum
Nearby in the species list Thames Cross, The Czar, Tidig Victoria, Tidlig Engelsk Sveske, TIMPURII DE ALBACH, Tina, Tipala, Tita, Tolar, Top, Top-Col, Topend, Topend Plus, Topfirst, Topfive, Topgigant, Tophit, Topking, Topper, Topstar