The Rolander (or Rolander H) variety is classified as an onion hybrid. It is officially included in agricultural variety lists under European Commission documentation.
This variety has been used in scientific studies examining bulb dormancy mechanisms and sugar dynamics during storage, where it served as an object of comparative analysis alongside other varieties.
Sources2
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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.
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