The abbreviation RHA in sunflower breeding stands for Restorer of Fertility line. This subject does not have commercial variety characteristics, such as plant height, maturity group, or yield, as it is intended for highly specialized scientific programs.
In scientific literature, the line is mentioned in the context of genetic research, particularly in mapping genes for disease resistance, for example, to downy mildew. Objective data on the origin or morphological parameters of the line are not provided in open sources.
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Countries of admission
1 jurisdiction
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.
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.
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