种子科学与工程毕业论文.doc

编号 0615107 毕 业（学 位）论 文 （2010届本科） 题 目： 芸芥自交亲和性变异初步研究 系（部）院： 农 学 系 专 业： 种子科学与工程 作者姓名： 指导教师： 职称： 讲 师 完成日期： 2010 年 5 月 30 日 目 录 中文摘要 2 英文摘要 2 第一部分 引言 3 第二部分 材料与方法 4 第三部分 结果与分析 4 第四部分 讨论与小结 9 参考文献 9 致谢 11 芸芥自交亲和性变异初步研究 李宏洋 （河西学院农学系 张掖 734000） 摘要:针对20份不同芸芥材料，采用人工自交法研究其自交亲和性。结果表明：芸芥的自交亲和性存在较大幅度的变异,自交亲和指数分布在0.00～3.63之间。20份参试材料中,自交亲和指数小于1.00的材料有13份,自交亲和指数大于1.00的材料有7份。说明芸芥中存在自交亲和材料,芸芥自交亲和性变异不仅存在于材料间,而且也存在于同一材料内不同个体间。按自交亲和指数的高低，可将参试材料分为4种类型: ①高自交亲和类型（自交亲和指数3.00）；②自交亲和类型（1.00自交亲和指数2.99）；③自交不亲和类型（0.00自交亲和指数1.00）；④高自交不亲和类型（自交亲和指数=0.00）。 关键词:芸芥；自交亲和性；自交亲和指数 中图分类号:S565.4 文献标识码:A Studies on the Self-compatibility of Eruca sativa Mill LI Hongyang (Department of Agronomy Hexi University, Zhangye 734000) Abstract: The self-compatibility of 20 materials of E. sativa Mill were tested by applying the self-pollination method.The results showed that self-compatibility of E. sativa Mill varied among the materials, and the average self-compatibility indexes of all the materials were between 0.00~3.63.The differences of self-compatibility were detected among the materials and the individuals in the same materials.The self-compatibility index of 13 materials was below 1.00.The average self-compatibility index ranged within 0.00~0.69.The self-compatibility index of other 7 materials excess 1.00.The average self-compatibility index was 1.87~3.63.The plants which self-compatibility index below 1.00 was not found in Yunjie7 and one plant named Yunjie7-2 which self-compatibility index reached 6.36.According to their self-compatibility index, the materials in this study could be divided into four groups:①the highly self-compatibility group with the self-compatibility index excess 3.00;②the self-compatibility group with the self-compatibility index 1