农学学报2016，Vol.6Issue(5)：47-52,6.
紫薇种子辐射变异和抗性初步研究
Variation and Resistance of Lagerstroemia indica Seed Under Radiation
摘要
Abstract
In order to study the effect of radiation on the Lagerstroemia indica seed and select new varieties with resistance to powdery mildew, the seeds were treated by 60Co-γradiation and contrast tests were carried out using cutting seedlings, the emergence rate, long stamens petalody, resistance and growth were investigated. The results showed that radiation treatment could significantly inhibit the emergence rate and had a certain role in promoting the petalody of long stamens. There were two plants with strong resistance to powdery mildew among the plants of Lagerstroemia indica‘Liuyue Feixue’that were radiated, and the others were infected with powdery mildew. Kangbing No.1 was immune to powdery mildew, and Kangbing No.2 showed high resistance to powdery mildew,‘Sihai Shengping’was moderately sensitive to powdery mildew,‘Liuyue Feixue’and‘Redrocket’were highly sensitive to powdery mildew. The plant height and ground diameter of the two disease-resistant plants were higher than those of the non disease-resistant plants, and the leaf fall period of disease-resistant plants were significantly later than that of non disease-resistant plants.关键词
紫薇/辐射/白粉病Key words
Lagerstroemia indica/Radiation/Powdery Mildew分类
农业科技引用本文复制引用
聂硕,张林,王峰,孙忠奎,朱翠翠,谢宪,王长宪..紫薇种子辐射变异和抗性初步研究[J].农学学报,2016,6(5):47-52,6.基金项目
山东省农业良种工程项目“紫薇红花系高抗品种选育”（鲁科字[2015]131号）。 （）
