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本文选用７份早熟玉米杂交种，在我省县有代表性的７个试点按统一方案进行试验。运用参数法、综合法对其稳定性、适应性进行分析研究，结果唯有四早６号两种分析结果吻合，稳定性、适应性优于其他６份杂交种。即四早６号对不良环境条件的忍耐力、抵抗力强；稳产性好、丰产性高、适应性广．
In this paper, seven early-maturing corn hybrids were selected and tested in seven representative pilot projects in our county according to a unified plan. Using the parameter method and the comprehensive method to analyze the stability and adaptability, the result of the analysis is consistent with the results of the two kinds of analysis, and the stability and adaptability are better than the other 6 hybrids. That is, four early as 6 on the adverse environmental conditions of endurance, strong resistance; good stability and yield, high yield, wide adaptability.