HERITAGE PLANT CONSERVATION THROUGH MICROPROPAGATION Ros Smith Duchy

HERITAGE PLANT CONSERVATION THROUGH MICROPROPAGATION Ros Smith Duchy College Rosewarne [email protected]

Leaf scales removed after sterilization Individual florets removed and soaked in plant growth hormones

1 2 3

Stages in regeneration from ovaries Regeneration from ovary and pedicel

Regeneration from complete floret Regeneration from vegetative buds Rhododendron macabeanum

Trengwainton form Rhododendron macabeanum Trewithen form Magnolia shoots Jelly culture

Liquid culture with floral foam support Camellia shoots under micropropagation

Hymenoscyphus ericae Oidiodendron maius GARDENS: 39

TAXA: 800+ GENERA INCLUDES: Rhododendron Magnolia Menziesia Camellia

Viburnum Pieris We are extremely grateful for the financial support received from the following gardens and organisations: Objective 1

Pencarrow Defra Bodnant Gardens Heligan gardens

NCCPG Devon branch Caerhays Cornwall Gardens Trust

NT Trengwainton Cornwall Garden Society NT Knightshayes Lady Boyd Trust

Penjerrick Gardens Duke of Cornwall Trust Lamellen Gardens

Carew Pole Trust Chyverton The Tanner Trust Trewithen Gardens

R. arboreum R. arboreum subsp. cinnamomeum R. decorum R. griersonianum

R. griffithianum R. Sir Charles Lemon R. thomsonii R. sino grande

R. Trebah Gem

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