子代鉴定,就是指对所造优树后代进行遗传性的测定和比较。具体做法是将优树上自由授粉的种子或种子园各无性系控制授粉的种子,按田间设计技术,进行造林效果对照观察,在达到一定代期或开花结实时,按测定目的,做出评定,从中选出优良无性系,建立高质量的种子园,为造林提供更优良种子。 现在的种子园林都是用经过选择的优树接穗嫁接而建立起来的,亦称无性系种子园。因而种子质量显然较好,但由于优树的选择只能根据树木的外表特征进行,只能是表现型选择, Progeny identification, refers to the descendants of the superior tree genetic determination and comparison. The concrete method is to control the pollinated seeds of each clones of the seeds or seed orchards freely pollinated in the superior tree and observe the afforestation effects according to the field design techniques. When reaching a certain generation or flowering and fruiting, the seeds are determined according to the purpose of the measurement , Select excellent clones, establish high-quality seed orchards and provide better seeds for afforestation. Today’s seed gardens are all established with the selected scion graft, also known as clonal seed orchard. Therefore, the seed quality is obviously better, but because the selection of the superior tree can only be based on the appearance of the trees, can only be a phenotypic choice,