干旱一直是制约我国粮食生产的一个重要因素。新疆是开展玉米耐旱鉴定最理想的地区之一。筛选具有强耐旱能力的玉米种质,培育耐旱玉米新品种已成为今后玉米育种的重要方向。研究采用玉米开花期干旱胁迫法,以经济产量为主要性状,结合株高、穗位高、雄穗长、雌穗长、秃尖长、穗行数、行粒数、穗粒数、千粒重、ASI等形态生育性状,用抗旱性指数(DRI)作为玉米种质资源耐旱性鉴定与评价的主要指标,对24份玉米自交系的耐旱性做了鉴定与评价。鉴定出502、早314L、早17、海014、新自349、新自523、428J、L02等自交系,耐旱等级在3级以上,具有较强耐旱性。 Drought has been an important factor that constrains food production in our country. Xinjiang is one of the most ideal areas for drought-resistant identification of maize. Screening corn germplasm with strong drought tolerance and cultivating drought-tolerant maize new varieties have become an important direction for maize breeding in the future. In this study, we used the drought-resistance method at the flowering stage of maize and took the economic yield as the main trait. Combining the plant height, ear height, ear length, ear length, baldness length, ear number, grain number, ASI and other morphological characters. Using the drought resistance index (DRI) as the main index to identify and evaluate the drought tolerance of maize germplasm resources, the drought tolerance of 24 maize inbred lines was identified and evaluated. Identification of 502, as early as 314L, as early as 17, the sea 014, since the 349, a new since 523,428J, L02 and other inbred lines, drought tolerance level above 3, with strong drought tolerance.