【摘要】 对发育良好的黑心菊(Rudbeckia hybrida)种子采用不同温度(40、50、60℃)温水和不同浓度(50、80、110、140 mg/L)赤霉素(GA3)溶液分别浸种处理,研究其不同处理组合对种子萌发的影响。结果表明,以80 mg/L赤霉素溶液浸泡2 h处理的种子萌发效果最好,是促进黑心菊种子萌发的最优组合。更多还原

【Abstract】 The experiment with different temperature(40,50,60 ℃) of the warm water and different concentrations(50,80,110,140 mg/L) of gibberellin(GA3) solution respectively soaking of well-developed seeds of Rudbeckia hybrida,to study the effects of combination of different treatments on seed germination characteristics,and provide a theoretical basis for R.hybrida seedlings breeding.The results showed that the treatment of 80 mg/L of GA3 solution soaked by two hours for the seeds has a better result on the germination percentage and germinability.The germination characteristics of the seeds are the best in all the treatments.更多还原