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意大利杨树六个无性系Ⅰ—72/58、Ⅰ—69/55、Ⅰ—63/51、Ⅰ—214、Ⅰ—45/51和加龙引种我省业已开花.1980年春我所进行人工有性杂交,获得杂种,播种又得到一批杂交苗木.现将不同杂交方法对69×63杨杂种种实发育和苗木生长影响简报如下:一、杂交方法以63杨为母本,69杨为父本,采用以下三种杂交方法:1.温室切枝杂交 1980年3月4日从大树上采集花枝,在温室内进行水培.4月2—4日连续3次进行人工授粉.5月11—26日朔果成熟.
The poplar of Italy poplar I-72/58, I-69/55, I-63/51, I-214, I-45/51 and Garonne introduced the province has flowering. Sex hybridization, access to hybrids, sowing and get a number of hybrid seedlings now different hybridization methods 69 × 63Yang hybrids seed development and seedling growth briefings are as follows: First, the hybrid method to 63 Yang as the female, 69 Yang as the father The following three methods of hybridization were used: 1. Greenhouse cuttings hybrids were collected from large trees on March 4, 1980 and hydroponiced in the greenhouse. Artificial pollination was performed three times in succession from April 2-4. 11-26 Shuocheng mature.