花生耐老化种质的鉴定与评价-中国农学通报.PDFVIP

中国农学通报 2013,29(18):67-71 Chinese Agricultural Science Bulletin 花生耐老化种质的鉴定与评价 沈 一，刘永惠，陈志德 （江苏省农科院粮食作物研究所，南京210014 ） 摘 要：为了筛选花生耐老化种质及明确老化前后种子主要品质性状的变化，选用18份不同来源的花生 品种（系），通过人工老化和发芽率的检测，进行种子耐老化能力鉴定。结果表明，老化8 天后，发芽率有 显著下降；在此基础上筛选到5 份耐老化花生品种（系），老化8 天以后仍有90% 以上的发芽率；通过品质 分析与相关度分析，发现老化前后酸价有最显著变化，油酸、亚油酸含量与种子耐老化能力相关。本研 究为花生耐老化品种的遗传改良和相关基础研究提供了可靠材料。 关键词：花生；耐老化；种质筛选 中图分类号：S326 文献标志码：A 论文编号：2012-1775 Identification and Estimation of Aging Resistant Varieties in Peanut (Arachis hypogaea L.) Shen Yi, Liu Yonghui, Chen Zhide (InstituteofFoodCrops,JiangsuAcademyofAgriculturalSciences, Nanjing 210014) Abstract: For selecting aging resistant varieties in peanut and measuring main quality characters before and after the aging, we used 18 peanut varieties from different resources for the estimation of aging resistant ability through artificial aging and germination rate detection. We found the oblivious decline of germination rate after aging for 8 days, and based on which, we identified 5 varieties with strong aging resistant abilities (germination rate90% after aging for 8 days); through character measurement and association analysis, we found acid value as the most alterable factor before and after aging, and the relationship between the aging resistant ability and oleic/linoleic acids contents. The reliable varieties we identified might be helpful for the genetic improvement of peanut and the related researches. Key words: peanut; aging resistant; variety selection [7] 0 引言 这些不饱和脂肪酸在种子储