【摘要】 以特甜1号、超甜3号甜玉米种子为材料,经GA3(赤霉素)、KT(激动素)、BR(芸薹素内脂)、PEG(聚乙二醇)、S3307(稀效唑)和清水浸种、回干处理,在20℃、10℃下进行发芽试验,测其发芽率、苗高和干物质重。在发芽48d后,测定过氧化物酶、α-淀粉酶和SOD酶的活性,最后进行统计和分析。试验结果表明:低温抑制甜玉米幼苗的生长,但经50mg/LGA3、2mg/LKT和0.05mg/LBR处理后,对甜玉米种子发芽率的提高和幼苗生长具有促进作用。用2mg/LKT处理效果α-淀粉酶活性最好。低温情况下用0.05mg/LBR处理SOD酶活性明显提高。用50mg/LGA3和2mg/LKT处理的过氧化物酶活性明显提高。更多还原

【Abstract】 With soaking and drying treatment of GA3 and KT and BR and PEG and S3307 and water.Germination in 20℃ and 10℃ of Tetian 1 and Chaotian 3,measured germination the height of the seeding,the weight of the substance,the activities of POD amylase and SOD.The result showed that the seeding growth of sweet corn was restrained in low temperature.Dealed with GA3 and KT and BR,the seeding growth was increased to sweet corn.The activities of amylase were good in KT.In the low temperature,the vivid of SOD was increased in BR.The vivid of the POD was increased in GA3 and KT.更多还原