牙皂优良无性系选择研究

Research on the Selection of Gleditsia officinalis Good Clone

在枣庄、邹城、临沂等地现存的1万余株20～300年生牙皂大树中，筛选出大穗月牙、小月牙、丰月牙等优良单株3株，分别在邹城市、山亭区、滕州市等地进行生长量、产量、适应性、稳定性比较试验。试验结果显示，3个优良无性系的产量超过对照20％～42％，药用价值高于对照。

Among more than 10 000 Gleditsia officinalis in 20-300 ages which exist at present in Zhoucheng, Shanting and Tengzhou, three superior trees, such as Dasuiyueya, Xiaoyueya and Fengyueya were selected. A contrast test on the growth quantity, the fruit yield, the adaptability and the stability were conducted separately. The result showed that the fruit yield was excess the contrast over 20 % -42 %, and the medicinal value was higher than that of the contrast.