Abstract: This test started from the systemic and holistic of drough-tresistance in corn and the more important cornfour stages, namely: germinat ion stage (seeding-emergence), the seedling (emergence-jointing), the florescence (tassellingsilking) pustulation stage (pollination-yield). Adopting aphased artificial drought and using the trial materials which were good super maize varieties of composite characters, this test comparated drought indicators and maize drought capacity of morphology, developmental science, physiology and other aspects, measures and analysis easy indicators to establish a reliable, fast index system. By analyzing correlation of maize drought and various indicators through grey correlation analysis, cluster analysis, it cleared drought index system and relations a indicator and drough-tresistance in corn and laid the foundation of comprehensive evaluation of different corn variet ies drought.

Key words: Corn, Drough-tidentifying index, Grey system, Clustering analyzing

CLC Number: 

• S513.01