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银中杨是黑龙江省防护林研究所以银白杨为母本 ,中东杨为父本 ,经 2 0多年的栽培选择的优良人工杂交树种。属白杨派与黑杨派派间杂种 ,雄性无性系。是用材林、防护林、城乡绿化的优质杨树良种。目前推广到东北、西北及华北 10多个省区 ,面积达 1.51× 10 4 hm2。本文针对推广中育苗较难现象 ,总结了银中杨育苗技术经验。阐明了银中杨的生根机理、影响生根的内外在因子 ,为银中杨育苗生产、推广应用提供科学依据。采用 ABT生根粉 (10 0× 10 -6)和萘乙酸 (10 0× 10 -6)等药物处理 ,控制扦插时间 ,覆盖塑料薄膜等技术 ,是提高银中杨扦插成活率的有效措施。
Yinzhong Yang is Heilongjiang Province Shelter Forest Research Institute poplar as the female parent, the Middle East Yang as the father, after 20 years of cultivation selection of fine artificial hybrid tree species. A poplar and black poplar pie, male clones. Timber forest, shelter forest, urban and rural green poplar varieties. At present, it has been extended to over 10 provinces and regions in the northeast, northwest and north China with an area of 1.51 × 10 4 hm 2. In this paper, the promotion of seedling more difficult phenomenon, summed up the silver seedling Yang technology experience. The rooting mechanism of Populus euphratica and the internal and external factors that affect rooting were clarified, which provided a scientific basis for the production, popularization and application of poplar silver seedling. The use of ABT rooting powder (10 × 10 -6) and NAA (10 × 10 -6) to control the cutting time and cover the plastic film is an effective measure to improve the survival rate of Populus pruinosa cuttings.