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白花泡桐是我国南方四旁绿化广泛栽培的速生树种之一。它的种子细小,具较强的休眠性,属需光性萌发种子。目前,对于白花泡桐种子休眠和萌发特性尚缺乏系统深入研究,特别是生产中存在的种子出苗率低、出苗不整齐等问题仍未得到很好解决。为此,我们从1986年开始对白花泡桐种子萌发特性进行了较系统的研究。一、材料与方法1.材料白花泡桐种子于1986年11月采自湖南湘潭市。种子净度为98.13%,千粒重0.41克、含水量为11.61%,优良度为95.5%。
White Paulownia is one of the fast-growing tree species widely cultivated around the south of China. Its seeds are small, with a strong dormancy, is the need to germinate seed light. At present, there is a lack of systematic and in-depth study on the dormancy and germination characteristics of the seeds of Paulownia involucrata. In particular, the problems of low seedling emergence rate and irregular seedling emergence in production have not yet been solved. To this end, we started from 1986 on the white Germplasm seed germination characteristics of a more systematic study. First, materials and methods 1. Materials White Paulownia seed collected in November 1986 from Xiangtan City, Hunan Province. Seed purity of 98.13%, grain weight 0.41 grams, water content of 11.61%, goodness of 95.5%.