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茶树优异资源评价与遗传稳定性研究
Elite Germplasm Evaluation and Genetic Stability of Tea Plants
【摘要】 鉴定评价了200份种质资源的农艺性状、加工品质、生化成分、抗寒性等。筛选出品质超过国家品种的优异资源6份、茶多酚含量>38%的资源4份、咖啡碱含量>5.2%的资源6份、咖啡碱含量<1.0%的资源2份。对资源扦插后代的DNA多态性、同工酶酶谱特征以及花粉形态结构研究表明,无性后代的遗传性基本稳定。
【Abstract】 The agronomy, made tea quality, chemical components, cold resistance of 200 accessions of tea germplasms were investigated during 1996-2000. Among six accessions of elite tea germplasms, their made tea quality exceeded national clones, four with high polyphenol content (>38%), six with high caffeine content (>5.2%) and two with low caffeine content (<1%) germplasms were selected. Based on the studies of RAPD marker, isozyme and pollen morphology, the heredity of tea germplasms and their cutting offsprings was basically stable.
【关键词】 茶树;
种质资源;
鉴定评价;
优异种质;
特异种质;
遗传稳定性;
【Key words】 Tea germplasm (Camellia sinensis); Evaluation and identirication; Elite and special germplasm; Genetic stability;
【Key words】 Tea germplasm (Camellia sinensis); Evaluation and identirication; Elite and special germplasm; Genetic stability;
【基金】 “九五”国家重点科技攻关项目96—014—05子专题内容
- 【文献出处】 茶叶科学 ,Journal of Tea Science , 编辑部邮箱 ,2003年S1期
- 【分类号】S571.1
- 【被引频次】97
- 【下载频次】688