The results showed that under P-deficient condition, CA9325 had greater P uptake rate, higher affinity to P and stronger endurance to low-P.

• 吸收H_2PO_4~-的动力学研究表明，CA9325和JM2幼苗在含有不同磷水平的营养液中培养23 d并耗竭48 h后，缺磷培养的CA9325根系对H_2PO_4~-的吸收快，亲合力高，耐低磷能力强。