摘要
对1978年以来采收入库的各类烟草种子全面清理和活力检测的结果表明,不同类型的烟草其种质数量、种子贮藏量和种子活力差异较大。目前共保存烟草种质1905个,烟草种子3005份。其中,烤烟、晒晾烟、白肋烟、香料烟、黄花烟、雪茄烟和野生烟等类种质分别为1126份、426份、95份、188份、28份、5份和37份。71.9%烤烟种质的种子贮藏量多于10g,而87.1%白肋烟种子贮藏量少于10g。发芽率高于80%的种子所占的比例高低顺序是香料烟、烤烟、晒烟、白肋烟和野生烟,分别占91.5%、80.6%、71.5%、69.1%和52.9%。所有种子已分类整理、编目,并按要求分别存入长期库和短期库进行长期贮藏和提供持久的利用。
All the tobacco seed that collected from 1978 to 2005 have been cleaned up and vitality tested, the results showed that there were significant discrepancy in accessions of germplasm, seed weight and seed vitality of the different kinds of tobacco germplasm resources. There were 1905 accessions genetic resources and 3005 tobacco seeds stored at present. Among the collection of 1126 are flue-cured tobacco germplasm, 426 are air-cured tobacco germplasm, 95 are burley tobacco germplasm, 188 are oriental tobacco germplasm, 28 are Nicotiana rustica, 5 and 37 are cigar tobacco and feral species genetic resources separately. There was 71.9% flue-cured tobacco germplasm resources storage more than 10 grams seed. And there was 87.1% of burley tobacco germplasm resources storage seed less than 10 grams. Sequence of seed ration with germination higher than 80% from high to lower is oriental tobacco germplasm, flue-cured tobacco germplasm, burley tobacco germplasm, feral species genetic resources, and the ration is 91.5%, 80,6%,71.5%,69.1%和 52.9% separately. All the tobacco seeds have been cleaned up, classified, cataloged and re-stored in long-term and short-term germplasm repository according to the standard for the long-term storage and supply genetic resources use constantly.
出处
《中国农学通报》
CSCD
2006年第9期425-428,共4页
Chinese Agricultural Science Bulletin
基金
国家烟草专卖局项目"烟草新品种选育及相关技术研究"(110200201001)
云南省烟草专卖局项目"烟草种质库建立及相关技术研究"(04A21)。
关键词
烟草
种质库
种子清理
活力监测
发芽率
Tobacco, Germplasm repository, Seed cleaning up, Seed vigor examine, Germination percentage
