The results indicated that the contents of soluble protein, DNA and RNA in flag leaf gradually reduced, but the activities of protease and nuclease gradually raised during senescence.

• 结果表明 ,小麦旗叶衰老过程中可溶性蛋白质含量、DNA和RNA含量逐渐下降 ,而蛋白酶和核酸酶活性逐渐升高。