论文部分内容阅读
漆树的选种目标主要是:速生、丰产、优质、抗性好。欲达此目的,最基本的工作是按照一定的标准和方法,从现有漆树品种中把优良的农家品种选出来,再从中选出优良单株,作为育种的原始材料和建立良种基地的物质基础。所谓优树是指同一立地条件下,同龄林分中生长快,产量高,漆质好,抗性强的个体。优树是按照其表现型进行选择的。而表现型是遗传基础和环境因素相互影响的结果。我们所选的优树,是否具有优良的遗传特性?除进行子代鉴定外,可根据选种目标,科学地制定漆树选优标准,不断改进
Lacquer tree’s main target is: fast-growing, high yield, high quality, good resistance. To achieve this goal, the most basic task is to select good peasant varieties from the existing varieties of lacquer tree according to certain standards and methods, and then select the fine individual plants as the original materials for breeding and the material for establishing the base for breeding basis. The so-called excellent tree refers to the same site conditions, the same age fast growing forest, high yield, good paint quality, strong resistance to the individual. Excellent trees are chosen according to their phenotype. Phenotypes are the result of the interplay between genetic and environmental factors. We choose the superior tree, whether it has excellent genetic characteristics? In addition to the identification of offspring, according to the selection of goals, scientifically developed tree selection criteria, continuous improvement