芝麻种质资源中期库保存现状分析  

Sesame storing status in medium-term gene bank

作　　者：张秀荣[1] 冯祥运[1] 

机构地区：[1]中国农业科学院油料作物研究所,湖北武汉430062

出　　处：《中国油料作物学报》2004年第1期72-74,共3页Chinese Journal of Oil Crop Sciences

基　　金：十五"科技部基础性工作(2002JCXGZ-18);"十五"农业部重点项目(NB03-7)

摘　　要：介绍了我国芝麻种质资源中期库保存的基本情况,通过对已保存13至27y间各阶段的种质发芽率检测,明确了该中期库保存条件下芝麻种子出现快速下降的拐点发芽率为75%,种质的有效保存期为13～15y,安全保存期为10～12y,更新繁殖的最佳期限为12～13y,极端期限为15y,品种间、入库时种子质量等因素对种子生活力有影响,指出该中期库种质更新繁殖的紧迫性。The storing statues of sesame in medium-term gene bank has been discussed in the paper. Based on the germination test for sesame seed stored for 13 to 17 years. The sesame seed germination percentage with 75% was key value for sesame storage and below the value , the seed should be regenerated immediately. The effective storage term for sesame seed was 13 to 15 years and its safe storage term was 10 to 12 years. Genotype and seed quality can affect seed vigor. It is necessary for us to regenerate the storing germplasm in this gene bank.

关 键 词：芝麻 种质资源 种子质量 种子生活力 发芽率 更新繁殖 

分 类 号：S565.302[农业科学—作物学]