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一、表型测定的意义和任务表型测定是育种工作的重要环节,是一切育种工作的核心,其任务是:1、测定表型各性状的遗传稳定程度及对外界环境条件的反应,了解树木的优良性状是受环境的作用还是遗传特性的表现,做到去次留优,不断提高遗传增益。2,测定各表型后代在经济性状方面的差异程度,做到优中选优。3、在测定过程中,还可观察并总结亲代——子代、幼龄——成龄以及各性状间的相关,为提高选种效果提供科学依据和遗传材料.
I. Significance and Mission of Phenotyping Phenotyping is an important part of breeding work and is the core of all breeding work. Its tasks are: 1. To determine the genetic stability of each trait of phenotype and the reaction to the external environmental conditions, and to understand Good traits of the tree is affected by the environment or the performance of genetic characteristics, so that the next stay gifted, and continuously improve the genetic gain. 2, Determination of the phenotypic offspring in the economic traits of the degree of difference, so that you choose the best. In the process of determination, we can also observe and summarize the correlation between parental-offspring, young-adult and their traits, and provide scientific basis and genetic material for improving selection effect.