CAJ | 학술논문

以木薯华南5号、华南7号、华南8号、面包木薯以及多倍体8229为材料,分析了这5个木薯品种的基本农艺性状、叶片叶绿素含量和品种抗性,同时利用RAPD以及过氧化物同工酶分析了这5个木薯品种的亲缘关系。结果表明：华南7号与面包木薯生长优势明显,株高、茎粗显著高于其它3个品种。多倍体8229小裂叶呈短粗状、叶柄较短、叶形指数较小,低温处理后相对电解质渗出率最低,表明该品种对低温的抗性相对较强。叶片叶绿素含量以华南8号最高,达到4.63 mg/g,显著高于其余4个品种;RAPD分析技术和过氧化物同工酶分析结果表明：引物S76能够有效的对5个木薯品种进行分离和鉴定,华南5号与华南7号的亲缘关系较近,在分子水平存在较大的相似性。
이목서화남5호、화남7호、화남8호、면포목서이급다배체8229위재료,분석료저5개목서품충적기본농예성상、협편협록소함량화품충항성,동시이용RAPD이급과양화물동공매분석료저5개목서품충적친연관계。결과표명：화남7호여면포목서생장우세명현,주고、경조현저고우기타3개품충。다배체8229소렬협정단조상、협병교단、협형지수교소,저온처리후상대전해질삼출솔최저,표명해품충대저온적항성상대교강。협편협록소함량이화남8호최고,체도4.63 mg/g,현저고우기여4개품충;RAPD분석기술화과양화물동공매분석결과표명：인물S76능구유효적대5개목서품충진행분리화감정,화남5호여화남7호적친연관계교근,재분자수평존재교대적상사성。
Five cassava varieties of South China 5（SC5）,SC7,SC8,Bread cassava and Polyploid 8229 were used in this research.The agronomic traits,chlorophyll content and evaluation of cold resistance have been done,and the genetic relationship has been analyzed by using RAPD as well as peroxidase isozyme analysis technique.The results showed that the varieties of Bread cassava and SC7 had significantly better agronomic traits than the other three ones such as higher in plant height and bigger in stem diameter.The dehiscent leaves of the Polyploid 8229 are shorter in length,but wider in width;with shorter stem and lesser dehiscent number;Meanwhile it had smaller electrolytic exudation rate after cold stress,which suggests that the Polyploid 8229 is better in cold resistance.The chlorophyll content was the highest in SC8（4.63 mg/g）,compare to other species.The results showed that the primer S76 could functionally identify the five Varieties of Cassava by RAPD.SC5 and SC7 show close genetic relationship from the RAPD and peroxidase isozyme analyses.