中文摘要：

以无性繁殖获得的4年生石蒜（Lycoris radiata）鳞茎为材料,研究了8种不同的贮藏方式下鳞茎内源激素的变化及贮后生长效应。结果表明：与对照相比,在5℃条件下贮藏30 d和45 d时,石蒜花期分别推迟12 d和30 d,出叶期推后23 d和46 d,且开花率及鳞茎内源GA含量显著提高;14℃条件下贮藏石蒜均未开花,但出叶期显著提前（29～31 d）,且内源IAA、ABA和IPA含量也显著提高,ZR含量显著降低;22℃和28℃贮藏45 d可使石蒜开花分别提前16、10 d,出叶期也显著提前,但开花率不高,内源GA/ZR水平相对偏低。说明5℃的低温贮藏虽可显著提高石蒜的开花率,却会相应延迟开花;14℃贮藏虽可显著延长石蒜的营养生长期,但不利于开花;而22℃以上的高温贮藏可使石蒜显著提前开花,但开花率不高。此外,贮后石蒜鳞茎内高浓度的ZR和低浓度的GA有利于促进其提前开花。

英文摘要：

The effects of bulb storages on growth traits and endogenous hormones of 4-year-old bulbs of Lycoris radiata were investigated.The results showed,compared with the control,5 ℃ cold storage for 30 and 45 days delayed the florescence 12 and 30 days,and the leaf sprouting period was also postponed 23 and 46 days,respectively.At the same time,the blossoming rate and contents of GA increased significantly.However,as for the processing of 14 ℃,there was no blossoming and leaves were sprouted ahead of 29 to 31 days.In addition,the contents of endogenous IAA,ABA,and IPA were also significantly increased.But the content of endogenous ZR was significantly reduced.It also showed that treatments of 22 ℃ and 28 ℃ storage for 45 days the florescence was ahead of 10 and 16 days,respectively,and the leaf sprouting period was also significantly advanced.But the blossoming rate and the level of GA/ZR were relatively lower.Though the storage treatment of 5 ℃could significantly improve the blossoming rate,it also correspondingly delayed the florescence.The treatment of 14 ℃could significantly extend the vegetative stage,but it was not conducive to flowering.On the other hand,the treatment of above 22 ℃could significantly advance the florescence,but the blossoming rate was lower.In addition,the high content of ZR and lower content of GA in stored bulbs were benefit to flowering.