摘要
采用全光自动喷雾扦插育苗设备进行了黑云杉半木质化嫩枝扦插育苗试验。3年研究结果表明 ,在辽宁省东部地区气候条件下 ,以ABT200mg/kg浸插穗30～50min,生根率达到78.3%,而且根系发育良好 ;嫩枝插穗生根率比带部分硬枝的插穗生根率高49%,两者差异达显著水平 ;河沙插壤比锯末插壤生根率提高11.2%。嫩枝插穗扦插后 ,25d形成愈伤组织 ,40d左右出现根状凸起 ,50d生根。秋季起苗 ,沙藏越冬 ,翌年移植成活率高达92.5%,当年新梢生长量6.6cm。
Vegetation propagation test of Picea mariana Britt by softwood cutting were studied by using full-sun-shine and auto-spray system.The results from 3-year research showed that,among different rooting agents,the soaking cuttings with 200/kg ABT for about 30～50 min could get the best result under the climate of east Liaoning province,with the rooting rate of 78.3% and well developed roots;The rooting rate of softwood cuttings(49%)was higher than that of softwood cutting with some hardwood. The diversity of rooting rate between two kind of cutting was marked. The cutting medium of sand increased 11.2% of rooting rate in comparison with that of sawdust, After vegetation propagation by softwood cutting, the callus tissue has appeared after 25 days and heave like root appeared after 40 days.The real root appeared after 50 days, The seedlings were transferred in late autumn and buried with sand for living through the winter.The survial rate of transplanting seedlings can reach 92.5% in the second year, which shoot growth can reach 6.6cm.
出处
《沈阳农业大学学报》
CAS
CSCD
2002年第5期348-351,共4页
Journal of Shenyang Agricultural University
