利文斯顿雏菊育性初探

Preliminary Study on Fertility of 'Livingston' Daisy

通过传统的人工自交和杂交对利文斯顿雏菊的6个色系进行研究,分析其花粉生活力、自交不亲和性、杂交结实率,对利文斯顿雏菊的育性做一个初步的推测。结果表明:利文斯顿雏菊花粉的最佳培养基是250 g/L蔗糖+0.03 g/L硼酸;花粉活力的比较准确的染色法为I2-IK染色法;6个色系中,橙黄色系的花粉生活力最强;6个色系的雏菊基本为自交不亲和;橙色系和西瓜红色系在杂交中适合作父本,而玫红色系则适合作母本。

By the method of traditional artificial selfing and crossing on the six colour system of ＇Livingston＇daisy＇ were studied,the its pollen viability,self-incompatibility and crossing maturing rate were analyzed,make a preliminary speculate to Livingston Daisy＇fertility.The results showed that the best medium for pollen ＇Livingston Daisy＇ was 250 g/L sucrose＋0.03 g/L boric acid;More accurate staining method for pollen viability was I2-IK staining,highest pollen viability was the orange line in six colors;6 color of the daisies basic were self-incompatible,oranges and watermelon red line suitable for the male parent in hybrid,while the rose red line was suitable for the female parent.