In VitroConservation of Some Threatened and Economically Important Ferns Belonging to the Indian Subcontinent

[摘要] This study was undertaken to identify methods of mass multiplication for five ornamental, economically important ferns (Nephrolepis biserrata(Sw.) Schott.,N. cordifoliacv. ‘‘duffii’’ (L.) Presl.,N. exaltatacv.bostoniensis(L.) Schott.,Pteris vittataL., andCyclosorus dentatusLink.,) and three threatened ferns, namely,Cyathea spinulosaWall. ex. Hook,Pityrogramma calomelanos(L.) Link., andMicrosorum punctatum(L.) Schott., throughin vitrotechniques. Collections were made from different biodiversity zones of India including Northeast Himalayas, Kumaon Himalayas, and Western Ghat and successfully introduced and grown in a fern-house. Aseptic cultures were raised at the morphogenic level of callus, axillary shoot, multiple shoot, and rooted plants. An optimized medium is described for each fern species. Plantlets were also produced from spore culture ofCyathea spinulosaand successfully hardened under fern house conditions.

[学科分类] 植物学