The variety belongs to the early or precocious group. The period from germination to technical maturity, according to general descriptions for early leek types, can be about 45–60 days.
In international practice, the Kong Richard variety is used as a reference (comparative) sample when testing traits of other varieties, such as leaf blade width or the diameter of the 'stem'. The variety has undergone studies on susceptibility to leek viral diseases, in particular to leek yellow stripe virus.
Sources6
Loading…
Countries of admission
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data for which we do not publish: their registry licenses have not yet been verified.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.
Variety in registries
Regions of admission, rights holders, and status of plant breeders' rights
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