苹果苗木一般通过嫁接繁殖,在选购苹果苗木时应注意以下几点: 1、根系 优质苹果苗木根系发达,有较多的侧、须根,分布均匀。一般要求有较粗的大根6—7条以上,根径要达到0.5—0.6厘米以上(从近基部处测量),挖苗时大概多被挖断,要保留20厘米左右长。侧根少或无侧根的光杆老苗属于劣质苗木,不宜购买。 2、枝干 枝干要充实饱满,皮色有光泽,皮孔明显,节间生长均匀,春梢长,秋梢短或无秋 Apple seedlings generally through grafting breeding, apple seedlings in the purchase should pay attention to the following points: 1, roots of high quality apple seedlings developed root system, there are more side, fibrous roots, evenly distributed. Generally require a thicker root 6-7 more than root diameter to reach 0.5-0.6 cm (measured from near the base), digging more than about the excavation, to keep about 20 cm long. Less or no lateral root shoots light pole seedlings are inferior seedlings, should not be purchased. 2, branches and stems to full full, shiny skin color, lenticels is obvious, internode growth uniform, long spring shoots, autumn shoots short or no autumn