对吉林省1987～2007年审(认)定玉米品种主要性状进行分析。结果表明，20年间晚熟、中晚熟玉米品种审定最多，占总数的59%；早熟和中早熟审定最少。相关分析显示，吉林省玉米产量与生育期、单穗粒重、株高呈极显著高度正相关，与百粒重和穗位高达到显著中度相关，与穗长和穗行数无显著相关。20年间玉米的产量、生育期、单穗粒重、百粒重、株高和穗位高发生变化，且不同熟期变化不同，穗长和穗行数则没有显著变化。

Analysis of the main traits were carried out for maize varieties identified in Jilin province from 1987-2007. The results showed that late-maturing and middle-late-maturing maize varieties identified were the most, which reached 59% of the total, while early maturing and middle-early maturing maize varieties were the least in the past 20 years. Yield had highly significant positive correlation with growth period, single ear weight and plant height, significant moderate correlation with 100-kernel weight and ear height, and no significant correlation with ear length and row number of ear. In past 20 years, these traits including yield, growth period, single ear weight, 100-kernel weight, plant height and ear height had significant change according to different maturity, while row number of ear and ear length had no significant difference.