In a 2-year experiment,187 genotypes were grown under well-watered and drought stress conditions,imposed at panicleinitiation stage.The relationship of genotypic variation in yield under drought conditions to potential yield,heading date andflowering delay,reduction in plant height,and to a drought response index(DRI)was detected.Grain yield under droughtstress conditions was associated with yield under well-watered conditions(r=0.47~(**),and r=0.61~(**)during 2 years oftests).The delay of heading date ranged from-1(no delay)to 24 days,and was negatively associated with grain yield(r=-0.40~*),spikelet fertility percentage(r=-0.40~(**)),harvest index(r=-0.58~(**)),but positively associated with yieldreduction percentage(r=0.60~(**)).The reduction in plant height was negatively associated with grain yield(r=-0.24~(**),andr=-0.29~(**)),spikelet fertility percentage(r=-0.23~(**),and r=-0.21~*),harvest index(r=-0.37~(**),and r=-0.54~(**)),and positivelyassociated with yield reduction percentage(r=0.58~(**),and r=0.58~(**))in 2003 and 2004,respectively.The DRI of genotypeswas strongly associated with grain yield(r=0.87~(**),and r=0.77~(**)),fertility percentage(r=0.66~(**)and r=0.54~(**)),harvestindex(r=0.67~(**)and r=0.61~(**)),and negatively associated with grain reduction percentage(r=-0.70~(**),and r=-0.73~(**))under drought stress.The results indicate that genotypes with drought resistance can be identified by measuring yieldpotential,delay in flowering,reduction in plant height,or DRI under test environments of well-watered and drought stress. In a 2-year experiment, 187 genotypes were grown under well-watered and drought stress conditions, imposed at panicle initiation stage. The relationship of genotypic variation in yield under drought conditions to potential yield, heading date and flowering delay, reduction in plant height, and to a drought response index (DRI) was detected. Stress yield under drought stress conditions was associated with yield under well-watered conditions (r = 0.47 ~ (**), and r = 0.61 ~ (**) during 2 years of tests). The delay of heading date ranged from -1 (no delay) to 24 days, and was negatively associated with grain yield (r = -0.40 ~ *), spikelet fertility percentage (r = -0.40 ~ (**) (r = -0.58 ~ (**)), but positively associated with yield reduction percentage (r = 0.60 ~ (**)). The reduction in plant height was negatively associated with grain yield , andr = -0.29 ~ (**)), spikelet fertility percentage (r = -0.23 ~ (**), r = -0.21 ~ = -0.54 ~ (**)), and positivelyassociated with yield reduction percen tage (r = 0.58 ~ (**), and r = 0.58 ~ (**)) in 2003 and 2004, respectively.The DRI of genotypes was strongly associated with grain yield (r = 0.87 ~ (R = 0.66 ~ (**) and r = 0.54 ~ (**)), harvestindex (r = 0.67 ~ , and negatively associated with grain reduction percentage (r = -0.70 ~ (**), and r = -0.73 ~ (**)) under drought stress. The results indicate that genotypes with drought resistance can be identified by measuring yieldpotential, delay in flowering, reduction in plant height, or DRI under test environments of well-watered and drought stress.