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刺槐(Robinia pseudoacacia·L)是我省重要的速生用材树种。它生长快、抗逆性强、适应性广、耐旱、耐轻度盐碱,尤基适宜于黄土丘陵和沙土地,是水土保持、固沙造林及四旁绿化的优良树种。但由于目前用于造林的种子来源混杂,遗传品质低劣,致使造林后林木生长不良,不能迅速成材。因此,选择优良植株,建立种子园和母树林,生产具有优良遗传品质的种子,营造速生丰产林,以提高林业生产率,是当前林业生产
Robinia pseudoacacia L. is an important species of rapid growing timber in our province. It grows fast, strong resistance, wide adaptability, drought tolerance, resistance to light salinity, Youji suitable loess hilly and sandy land, soil and water conservation, sand fixation afforestation and surrounded by green trees. However, due to the mixed sources of seeds used for reforestation and the poor genetic quality, the trees can not grow well after the reforestation and can not be quickly reared. Therefore, selecting good plants, establishing seed orchards and mother trees, producing seeds with excellent genetic quality and creating fast-growing and high-yielding forests in order to increase forestry productivity are the key issues in current forestry production