The PHHHN line was derived from the PH6HR × PH964 hybrid via the pedigree selection method through eight generations of self-pollination to achieve genetic uniformity. It is classified as genetic material for breeding work, rather than a commercial hybrid for mass cultivation.
In scientific research, the line is mentioned in connection with studies of corn genetics, including the effect of the Brachytic2 gene on plant height. It also appears in regulatory documentation regarding the evaluation of genetic material during hybrid development.
Specialized characteristics, such as maturity group or agronomic resistance to diseases, are not presented in open sources, as these parameters are variable and depend on the specific hybrid combinations created based on this line.
Sources5
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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data for which we do not publish: their registry licenses have not yet been verified.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
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