Identification of Drought Resistance Indexes of Different Maize Varieties and Its Parents during Seedling Period

The results of genetic studies showed that drought resistance is heritable.It is important to pay more attention on the identification of drought resistance.Nine materials were tested including leaf area,RWC,MDA etc.The results showed that the morphological characteristics of maize had greatly change,the plant height decreased,the stem thinned,the leaf area dropped.Physiological and biochemical indexes also changed obviously,hybridization and inbred had simple genetic similarity in some physiological and biochemical indexes,but had not remark regulation.MDA,RWC and leaf area etc can be indexes of drought resistance of maize during its seeding stage.