优良玉米自交系698-3的选育与应用

698-3是四川省农科院作物所育成的优良玉米自交系。该自交系集成了高配合力、高产、优质、多抗、耐密等优良性状于一体，组配出了一批高产、优质、多抗、专用等玉米杂交种推广应用，取得了显著的社会经济效益。

Breeding and Application of Excellent Maize Inbred Line 698-3

In 1990', used the excellent maize hybrids as basis material introduced from America, maize inbred line 698-3 was selected which has some excellent characters such as high combining ability, highquality, multiple diseases-resistance and adaptability to high densities et al.The breeding of maize inbred line 698-3 has adopted the modified modem heredity breeding method and testing technology and considered the special requirements of environment to maize hybrids in Sichuan province and the Southwest Area in China.Eleven maize hybrids one of parents as 698-3 with such characters as high-yield, high-quality, disease-resistance, lodging-resistance and special usage were selected such as" Chengdan 18"," Chengdan 23"," Zhenghong 6".These maize hybrids had extensive popularized and come into being remarkable society and economic effects.