elite tree

基本解釋

Historically, the elite government officials are generally people with bound volumes of the family tree.
歷史上，官宦人家一般都是採用裝訂成冊的家譜。
So it is possible to establish clonal seed orchard as the base of high quality seed production through selecting elite straight grain individual plant (superior tree).
故可以通過選擇優(yōu)良的直紋單株（優(yōu)樹）建立無性系種子園，作爲(wèi)良種生産的基地。
To achieve these goals, genetically-elite families, clones and hybrids produced by tree improvement and biotechnology programs will be planted and managed with intensive silvicultural systems.
爲(wèi)了完成這些目標(biāo)，優(yōu)良遺傳基因、無性繁殖和襍交改進樹木品種，以及生物工程項目，將會集中用於植樹造林躰系的種植和琯理中。