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大岩桐可通过播种、球根萌芽、扦插、组培等多种方法繁殖,但目前生产上广为采用的都是播种繁殖。球根萌芽、扦插等多用于小规模生产或家庭园艺栽培。播种大岩桐种子十分细小,每克种子有25000粒,播种时对基质、温湿度的要求甚高。为保证较高的发芽率和成苗率,基质要尽可能采用专用育苗泥炭。发芽适温为21～25℃,自然条件下一般3月下旬播种,如有发芽室及温室温控设施,则可根据预定苗期或花期来确定播种时间,全年都可进行。播种时育苗盘选用硬塑平盘(工厂化育苗时则选用VFT288穴盘)。基质铺平育苗盘后,用细喷头慢慢浇透基质,1时后再播种。要事先分匀每张育苗盘的播种量,少量多次均匀地撒播于基质表面,播后不用覆土,做好标记置于发芽室或温室苗床架上。此间光照强度不能超过2000lux。如果是发
Dayangtong by sowing, sprouting bulb, cutting, tissue culture and other methods of breeding, but the production is widely used are sowing and breeding. Bulbous sprout, cuttings and more used for small-scale production or home gardening cultivation. Seeding sikkim seeds are very small, 25000 seeds per gram of seeds, sowing on the substrate, the temperature and humidity requirements are very high. To ensure a high germination rate and seedling rate, the matrix should be used as far as possible nursery peat. Germination suitable temperature is 21 ~ 25 ℃, under normal conditions generally sowed in late March, if Germination Room and greenhouse temperature control facilities, you can determine the sowing time according to the scheduled seedling or flowering, all year round. Seeding seedling selection of hard plastic flat plate (factory nursery selection VFT288 plug). Maize seedling paved flat substrate, with a thin nozzle slowly drenched substrate, sowing after 1:00. Divide evenly before planting seedlings per tray, a small amount of spread evenly on the substrate surface several times, after sowing without casing, well marked germination room or greenhouse seedling bed frame. Light intensity during this period can not exceed 2000lux. If it is hair