在油松育苗中，通过使用不同型号的25 mg 灋kg -1 GGR绿色植物生长剂浸种2 h试验并对GGR在油松育苗上的应用效果进行研究，结果表明：使用GGR6号生物调节剂能促使种子萌发，提高出苗率7．11％～13．33％；根系发达，侧根增多，促使苗木生长和增加干物质积累，提高生物产量15．98％～20．96％；投入产出比1∶13．3～1∶17．5，经济效益显著。%Pinus tabulaeformis Carr .Seedlings were soaked 2 h with 25 mg · kg -1 green biological regulator No . GGR .The results showed this measure promoted seed germination and improved seedling emergence with 7 .11%-13.33% ,developed root system ,increased lateral roots number ,dry matter accumulation ,as well as improved bio-mass yield with 15 .98% -20 .96% .Input-output ratio was 1 :13 .3-1:17 .5 ,which achieved higher economic effi-ciency .It is easy for people to master and practice this soaking technique .
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