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选育良种是林业建设的重要内客.采用良种,造林成活率高,成林早,生长快,抗性强,产量高,材质好,成本低,经济效益大,是高速度、高质量发展我区林业生产的有效手段.杨树良种,只有在适宜生长的自然条件下,优良性状才能表现出来;在不适宜生长的自然条件下,其优良性状就发挥不出来.因此,良种是有适应性和区域性的.进行杨树品种区域试验,其目的就是在不同的自然区域,经过科学试验,确定不同的推广良种.这对于实现我区林木良种基地化,造林良种化具有重大意义.
Breeding of fine varieties is an important guest for forestry construction.It is a high-speed and high-quality development that high quality and low cost, high economic benefit, high survival rate, high growth rate, fast growth, strong resistance, high yield, high yield, The effective means of forestry production in our district.As for the poplar species, the fine traits can only be manifested under the natural conditions that are suitable for growth, and the excellent traits can not be exerted under the unfavorable growth conditions.Therefore, Sexual and regional .Proposal regional trials, the purpose is in different natural areas, through scientific experiments to determine the different varieties of promotion.This is of great significance for the realization of our region, tree planting base, afforestation variety.