本文将全息生物学应用于杨树速生丰产林定向培育。通过全息定域选穗试验表明，杨树的最佳选条域位是树冠下部；最佳选穗域位是枝条中部。取自树冠下部枝条上的中部插穗，当年生苗木高生长量比取自“上上”、“根上”、“中上”的插穗分别高出２６．４ｃｍ、２５．３ｃｍ和２４．３ｃｍ， In this paper, holographic biology is applied to directional cultivation of fast-growing and high-yielding poplar trees. Through holographic paniculation ear selection experiments show that the best choice of poplar domain is the lower part of the crown; the best choice of panicle area is the middle of the shoot. Taken from the middle cuttings on the lower branches of the canopy, the annual growth of seedling height was 26.4 cm, 25.3 cm and 24.3 cm higher than the cuttings from “Shang”, “Shang” and “Shangshang”