雅玉 2号是四川省雅安地区农科所玉米研究中心利用自交系 792 2和苏 37配制而成的玉米新品种。该品种具有株形紧凑、株高适中、叶片宽大、抗逆性强、适应性广、高产稳产等特点 ,是一个适宜推广种植的大穗型优良新品种。1　自交系特征特性1.1　母本 792 2 :生育期较短 ,长势较弱 Ya-yu No. 2 Ya’an in Sichuan Province Agricultural Research Center corn using inbred lines 792 2 and Su 37 formulated from the new varieties of corn. The variety has the advantages of compact plant shape, moderate plant height, large leaf width, strong resistance, wide adaptability and high and stable yield, and is a good new variety with large spike suitable for popularization and cultivation. 1 inbred line characteristics 1.1 female 792 2: growth period is short, weak growth