以我国代表自交系黄早四、掖478、丹340、齐319、黄C、Mo17为对照，分析了28份巴西玉米材料在甘肃省平凉市的生态适应性。结果表明，28份外引材料在甘肃省平凉市均能正常成熟，部分材料的穗长、穗粗、穗行数、行粒数、千粒重、出籽率等产量性状优于国内代表自交系，可以作为组配亲本直接利用。

With Chinese representative inbred lines of Huangzao 4， Ye 478， Dan 340， Qi 319， Huang C， Mo17 as control， the ecological adaptability of 28 Brazilmaize materials in Pingliang city of Gansu province was analyzed . The results showed that 28 externalmaterials were able to mature normally in Pingliang city of Gansu province， which the yield of part of the material in ear length， ear diameter， rows per ear， kernels per row， 1 000 grain weight were better than the domestic representative inbred lines， it can be used directly as a matching parents.

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