一、种子园的概念及类型(一)种子园的概念。种子园是用优树、优良无性系的枝条或用种子培育的苗木为材料,生产具有优良遗传品质的林木种子的场所。其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或一般的种子生产基地。我国福建杉木初级种子园生产的种子,经子代测定,材积增益平均达10%以上。 First, the concept and type of seed garden (A) the concept of seed orchard. Seed orchard is the use of excellent trees, clones of elite clones or seedlings nurtured seedlings as a material, the production of excellent genetic quality of forest seed places. Its purpose is to improve the genetic quality of seeds to ensure that the seeds are stable and yield high. Seeds produced in seed orchards have a genetic gain greater than the parent or general seed production base. The seeds produced by Fujian fir primary seed orchard in China measured on the basis of offspring, the volume gain averaged over 10%.