Abstract : the application of random amplified polymorphism dna ( rapd ) to aspects of cultivar identification and classification , pedigree analysis , genetic map construction , hybrid identification , mutant detection , gene localization in genetics and breeding of horticultural plants was introduced 文摘:介绍了rapd技术在园艺植物品种鉴定和分类、系谱分析、构建遗传图谱、杂种鉴定、突变体检测、基因定位等遗传育种研究领域的应用。
Some central musa ( including 46 cultivars and 14 wild species ) were tested using aflp molecular markers with two pairs of primers ( e - acc / m - cat and e - acc / m - cag ) . one aim of this research is to ascertain the relationships between wild species and cultvars , cultivars belong to the same group in simmonds system . another aim is to provide molecular basis for musa systemetics and banana evolution route research 作者于2001年4月2002年5月以国家果树种质广州香蕉圃和华南农大香蕉品种园的主要芭蕉属植物为研究对象，应用aflp分子标记技术探讨野生蕉种间、野生蕉与栽培蕉、栽培蕉各类型之间以及各类型内部品种(系)之间的亲缘关系，为香蕉的演化途径研究、香蕉种质资源的评价利用、品种鉴定以及在分类上存在争议的个别种质的系统学划分等提供分子水平上的依据。
The subject probed into the source species and varieties identification of radix glehniae , one of shandong geo - authentic medicinal materials . the relation was studied between the quality and such factors as accumulation of components and the chemical components of different producing areas , processing methods , fertilizers and cultivars 专题探讨了：山东“道地药材”北沙参的种质资源与品种鉴定；不同产地、不同加工方法、不同追肥、不同栽培品种的化学成分与药材质量的关系；成分积累与质量的关系；药材的质量评价方法与质控指标。
The result shows that the content of total flavones is 0 . 0885 % . in conclusion , through the comprehensive studies on the botanical , morphological , histological and phytochemical aspects , this project has laid a solid basis on the quality evaluation and further development of pine leaves . it is this paper that first reported the gc - ms analysis of the essential oils obtained from p . armandi franch and flavonoids compounds in pinus massoniana lamb . 综上所述，本文通过对药用松叶品种、药材性状、显微组织及化学成分的研究，为四川产主要药用松叶品种鉴定、品质评价提供了依据，特别是对挥发油、黄酮类成分的研究所取得的初步结果以及一种新物质的发现，将为马尾松松叶的二次开发奠定基础。
To complement the above , biological control and chemical pesticides may also be used but only in a judicious manner . following a proper integrated pest management approach , which is sensitive to both human health and the environment , will reduce both mosquito problems and potential pesticide exposure 主要的措施包括检查、监察、品种鉴定、减少蚊子滋生的源头和改变其栖息的环境，同时亦可辅以生物防治法及化学性的除害剂。综合虫害防治方法如使用得宜，在控制蚊患的同时，亦可大大减少除害剂的使用，既顾及公众健康，又符合环境保护原则。
