为有效保护和高效利用玉米种质资源，通过对25份玉米种质资源的生育期、经济性状、农艺性状的观测鉴定，筛选出综合性状表现好的8份玉米种质资源。其中，B1B1、P74生育期较早，脱水快，可以做中早熟品种选育的基础材料；1CPS、P32、18♀、7♀的生育期为中晚熟，植株株型好，果穗性状优良，适宜做中晚熟玉米品种选育的基础材料； TS-1、TS-3的生育期偏晚，叶片数多、叶片宽大，鲜果穗重，适合做饲用玉米品种选育的基础材料。

To efficiently protect and utilize the maize germplasm resources, through the observation of growth period, economic and agronomic traits of 25 maize germplasm resources, 8 maize germplasm resources were screened out for better comprehensive performance. Results showed that B1B1 and P74 had shorter growth periods and fast dehydration, which could be used as basic materials for breeding of middle and early maturing varieties. 1CPS, P32, 18♀ and 7♀ showed middle to late maturing growth period, good plant type and ideal ear characters, and were suitable for breeding of middle to late maturing maize varieties. The growth periods of TS-1 and TS-3 were relatively late, the number of leaves and the width of leaves were large, and the fresh weights of ear were heavy, therefore, they were suitable for basic materials for breeding forage maize varieties.

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