马铃薯脱毒原原种雾培生产栽培法探索

A Modified Method for Minituber Production in Aeroponics

采用试管苗在蛭石（基质）中假植8周后剪尖苗上雾培与试管苗直接上雾培2种不同的栽培方法,对马铃薯脱毒苗的根、茎、叶生长情况及后期产量,定期进行观察、记录。结果表明：试管苗直接上雾培的叶、株高生长势方面和剪尖苗上雾培相比无明显差异;但试管苗直接上雾培比剪尖苗上雾培提前4~5 d生根,提早7~8 d左右产生匍匐茎,结薯数量较剪尖苗高27.17%,产量相对较高。试验的成功减少了原雾培生产中一个生产环节（假植）,降低了生产成本。在一定程度上完善了雾培（无基质）栽培技术,可推进雾培工厂化生产的普及。

Performances in root volume,plant height,leaf number,and tuber yield were compared in aeroponics system using two different initiation materials.One method used in vitro plantlets as the initiation materials,while the other used the transplants of in vitro plantlets grown in vermiculite for eight weeks.No obvious differences were found for leaf number and plant height between these two methods,however 4-5 days and 7-8 days were advanced for root initiation and stolon initiation,respectively,in plants derived from in vitro plantlets compared with transplants.More importanly,tube number per plant was also increased by 27.17%.These results indicated that transplantation could be omitted from aeroponics system,and in this way the production coat could be reduced accordingly.Therefore,using in vitro plantlets as initiation material in aroponics should be recommended for minituber production.