玉米杂交种在生产上的应用 ,大幅度提高了玉米产量 ,而地处干旱少雨的华北地区 ,则由于十年九春旱 ,现有品种难以保证玉米适时下种、高产稳产 ,直接制约着旱地玉米生产的发展。我所利用具有长根茎特性的印地安蓝粒玉米种质 ,培育出的抗旱耐深播高产玉米新品种 ,播深 2 0cm能正常出苗 ,对我国北方干旱、半干旱地区春播玉米生产的发展有着十分重要的意义。春旱不误适时探墒深播保全苗 ,伏旱深层根系有水“喝” ,从品种上解决了千百年来旱地玉米生产发展缓慢、产量不高不稳的老大难问题 Maize hybrids in the production application, a substantial increase in maize production, and is located in arid and rainy regions of North China, due to drought in the past nine years, the existing varieties of corn is difficult to ensure the timely, high and stable yield, direct constraints on the dry land Development of corn production. I use the Indian blue corn germplasm with long rhizome characteristics to cultivate new varieties of drought-tolerant deep-seeding high-yielding maize, sowing depth of 20cm can normally emerge, the development of spring sowing maize in arid and semi-arid areas of northern China Has a very important meaning. Spring drought timely and timely exploration of deep-seeding moisture seedlings, drought deep roots with water, “drink”, from the species to solve thousands of years of dryland corn production is slow, low yield unsteady problems