植物生长调节剂对百合鳞片繁殖效应的初步研究

Effects of Plant Growth Regulators on Scale Propagation in Lily

以宜兴百合(LiliumlancifoliumThunb)和兰州百合(Liliumdavidiivar.unicolor)为试材,研究了赤霉素(GA)、萘乙酸(NAA)和吲哚丁酸(IBA)3种植物生长调节剂对鳞片繁殖小鳞茎的影响。结果表明,300mg/kg(毫克/公斤)的IBA浸泡鳞片5h(小时),最有利于宜兴百合鳞片形成小鳞茎,且鳞片不易腐烂,但所形成的鳞茎大多处于休眠状态。兰州百合以200mg/kg(毫克/公斤)的IBA处理效果最好,并且形成的小鳞茎大多处于萌发状态。低温处理可有效提高鳞茎发生率、鳞茎级数、繁殖系数和鳞茎萌发率。NAA处理的鳞片腐烂率较高,其原因有待于进一步研究。

Effects of gibberellie aeid（GA）, a-naphthleetie aeid（NAA）and indolebutyrie acid（IBA）on scale propagation were studied in Lilium lancifolium Thunb and Lilium davidii var, unicolor. The results indicated that soaking scales in 300 mg/kg IBA for 5 hours was the optimum treatment for Lilium lancifolium Thunb. but the scaiets were mostly dormant. The best treatment for Lilium davidii var. unicolor was 200 mg/kg IBA and the scahts were sprouting. Cold treatment improved the scalet percentage, average grade, propagation coefficient and percentage of sprouting. Rotten percentage was higher in NAA treatment and the reasons should be studied thoroughly.