早播下提高超甜玉米田间出苗率的研究

Studies on Seed Treatments for Improving Field Seedling Emergence of Sweet Corn Planting in Early Spring

试验以3个代表性的超甜玉米品种为试材,设计了7种种子处理方法,采用随机区组设计,研究在早播气温较低的条件下,种子处理对提高超甜玉米种子的田间出苗率、成苗率的影响。结果表明,在温度较低的早春播种,种子处理方法对提高甜玉米种子的田间出苗率、成苗率效果显著,最高可提高田间出苗35.2%;以噻酮、丙酮、氮酮的处理效果最好。本研究中的种子处理方法,与以往的方法比较,具有安全无毒、操作简便的优点,可以更好地指导甜玉米生产。

This experiment was carried out in 2004,using three super sweet corn cultivars named sweet No. 8, yuetian No. 3 and huatianyu No. 1 all with gene sh2. Seven treatments to sweet corn seeds were adopted in 3 forms as being respectively primed ,pelleted and infused with the organic solvents ,and then the processed seeds were planted in the field in three times from 28, March to 1, May. The field seedling emergence,plant stand establishment percentages were observed and recorded. The experiment testified the effect of several seed treatments on improving the seedling emergence and plant stand establishment under the condition of low temperature in early spring,Henan province. The maximum rang to improving the seedling emergence is 35.2% higher than that of nontreatment seed. Among all the treatments,the azone and acetone produce relatively best results. These methods are supposed to have a more bright future using in sweet corn seed production.