论文部分内容阅读
林木后代鉴定是一神实验性的栽培措施,是林木改良工作中不可缺少的环节。鉴别某种林木的性状能否遗传,仅从其表现型个体直接进行判断和选择,效果不稳定,盲目性大。因此,在选优、建园之后,对第一代种子园(初级种子园)或经过当代鉴定的优树,采用种子(有时也用无性系)进行育苗造林所培育的后代,不仅对其表现型,特别是对其遗传性状进行有效的比较鉴定,从而为优中选优和建立高级种子园提供科学依据。
Identification of forest offspring is a one-god experimental cultivation measures, forest improvement is an indispensable link in the work. Identification of traits of certain trees can be inherited, only from its phenotypic individual direct judgments and choices, the effect is not stable, blindness. Therefore, after the optimal selection and establishment of the park, the offspring raised by the seedling (or clonal) seedlings in the first-generation seed orchard (primary seed orchard) or the contemporary appraised superior tree are not only notable for their performance Type, especially its genetic traits for effective comparative identification, so as to optimize the selection and establishment of advanced seed orchard provide a scientific basis.