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据《农业科技要闻》1995年第33期报道，陕西省农科院黄土治理研究所马凤桐主持的芦笋优良雄株无性系繁殖技术研究取得重要突破。他们组建了组培繁殖技术程序，使生产上主栽品种玛丽华盛顿、＂c157及Franklin等每芽月平均分化指数达到”8．8，试管苗的平均生根率和移栽成活率在8
According to “Agricultural Science and Technology News,” No. 33 of 1995 reported that the Shaanxi Provincial Academy of Agricultural Sciences, Institute of Loess Ma Fung Tong superior asparagus superior male clones reproductive technology has made important breakthroughs. They set up a tissue culture technology program, so that the production of the main varieties of Mary Washington, “c157 and Franklin, the average monthly differentiation index reached 8.8”, the average rooting rate of in vitro seedlings and transplanting survival rate of 8