Breeding of roses introduced in the Kola Subarctic

Abstract

The questions of seed and vegetative breeding of introduced wild roses with application of dimethylsulphoxide (DMSO), stimulants and fungicides under conditions of the Kola Subarctic are considered. The rose seeds pretreatment with the mixture of DMSO with hybberellin and kinetin increased germination up to 65 % even in 6–8 weeks. Application of DMSO with growth regulators and fungicides during green graft planting resulted in the increase of rhizogenesis up to 93 % and decreased winter fall out of grafts from 90 % to 5–14 %. Application of the proposed methods of propagation provides the wide use of roses in planting of greenery and Subarctic gardening.