论文部分内容阅读
种子园是由经过选择的油桐无性系或家系建立起来的油桐林,其经营目的在于改良种子的遗传品质,确保种子的稳产高产。种子园生产的种子,其遗传增益大于母树林。按繁殖方式可分为无性系种子园和实生种子园;按是否经过子代鉴定来分,有普通种子园和改良种子园;还有根据配合力的测定来划分,如由特殊配合力较高的两个亲本的无性系建立起来的种子园,即杂交种子园。
Seed orchard is a selected tung oil clonal clonal or family established to establish its business, its business is to improve the genetic quality of the seeds to ensure that the seeds of high and stable yield. Seeds produced in the seed orchard have a higher genetic gain than the parent woods. According to breeding methods can be divided into clonal seed orchard and seed garden; according to whether the progeny identified to points, there are ordinary seed orchard and improved seed garden; and according to the determination of the combining ability, such as by the special combination of high The two parents of clones established a seed orchard, a hybrid seed orchard.