摘要
选择黑杨派5个母本和7个父本组成杂交组合,采用花枝室内水培、人工控制授粉方法开展杂交育种研究。通过对杂交子代无性系苗期测定和选择,选用21个无性系加7个对照品种开展表型测定和区域化造林试验。通过多点多年栽培试验、观测调查和统计分析,筛选出‘鲁林9号杨’、‘鲁林16号杨’2个雄性新品种。在莒县7年生试验林中,‘鲁林9号杨’平均胸径生长量达25.0cm,平均树高生长量达20.8m,平均材积生长量达0.38833m^3,超过对照I-107杨34.6%,超过L35杨49.3%。‘鲁林16号杨’平均胸径生长量达24.1cm,平均树高生长量达20.8m,平均材积生长量达0.35949m^3,超过对照I-107杨24.6%,超过L35杨40.2%。2个新品种树干通直挺拔,顶端优势强,分枝均匀,层轮明显,树姿优美;且为雄性美洲黑杨,不结实,无飞絮,无环境污染,适宜培育纸浆材和胶合板材。
The choice of Aigeiros 5 female and 7 male cross combinations, the squid indoor hydroponics, artificial pollina- tion methods to carry out cross breeding research. Based on the hybrid progeny clones determination and selection, selection of 21 clones and 7 control varieties in regional test and phenotype determination of afforestation by laboratory test. Many years of cultivation, observation, investigation and statistical analysis, screening out the 2 new Varieties of ＇Lulin 9 ~,＇ Lulin 16＇ was a female hybrid selected from a breeding population .7 years testing in the forest in Juxian, ＇ Lulin 9 ~ average DBH growth was 25.0cm, the average tree height growth amounted to 20.8m and the average volume growth reached 0.38833 m^3 , more than 34. 6 % more than the L35 control I--107 49.3%.＇ Lulin 16＇ DBH growth amounted to 24.1 cm, the average tree height growth was 20.8m, the average volume growth reached 0.35949 ma , more than 24.6% more than the control I-107 and L35 40.2%.2 new varieties of straight trunk straight, apical dominance, branching uniform, round layer obviously, tree appearance is beautiful; and for eastern poplar, with the characteristics of no seeds, non--catkin, no pollution, suitable for cultivation of pulpwood and plywood.
出处
《山东林业科技》
2016年第6期1-7,共7页
Journal of Shandong Forestry Science and Technology
基金
山东省农业良种工程项目(鲁科农字[2006]90号
鲁科农社字[2007]217号)研究内容
