【摘要】 本文主要介绍选育小苍兰新类型的过程及其主要优良性状。此新类型系从荷兰引进种球,经温室栽培二年后已见退化和带病毒病。以这些球茎为试材,经过⁶⁰CO-γ射线辐射处理,从中选出优良突变体,进行组织培养和无性繁殖法育成。经连续三年的田间栽培对比试验,小苍兰新类型具有花茎高而挺直、花期早、花序上花朵数多等特点。本试验为在我国发展小苍兰生产,提供优良种质资源。更多还原

【Abstract】 This text mainly introduces the process of Freesia radiation breeding and the excellent characteristics of the new varieties.Bulbs introduced from Holland gradually degenerate being grown under green-house for two years. These virus disease affected bulbs are then treated by 60Co-gamma ray irradiation and excellent mutant is chosen among them. Combined with the method of tissue culture, the new varieties of Freesia is successfully breeded. The three-year comparative experiment indicates that the new varieties of Freesia have their own characteristics such as high flower-stem, straight stem, early flowering, flower productive and better disease resistance. This provides us with better exploitation of the resources of the varities for the development of Freesia varieties in its production and considerable foriegn currency saving.更多还原