Abstract: A culture experiment was conducted to evaluate the growth and the nutrition of Zn,Fe,Cu,Mn of wheat plants at the seedling stage in chelater2buffered solution.Zn rates were applied at three levels of deficient (0μ mol/L),normal (3μ mol/L),excess (30μ mol/L) and P was also designed in three rates,namely,0 (insufficiency),0.6 (normal),3.0 (excess) mmol/L.The results showed that the growth of wheat was increased under normal P and Zn supply,but there would be depressed if excess or no P and Zn addition to culture solution,and these effects were stronger to the shoots than that of the roots;There was obvious antagonism between Zn and Cu at wheat seedling stage,but the translocations from root to shoot of Zn and Cu were increased under the supply of Zn,while that of Mn was decreased;A large mount of Zn was translocated to the shoot under excess Zn supply,and the total translocation of (Fe + Cu +Mn) was decreased drastically at the same time.The uptake of Fe was inhibited by the P supply,but the translocation ratio of Zn,Cu and Mn increased under the P supply;the effect of Zn itself was more remarkable than P on the uptake between Zn and Fe,Cu,Mn,the uptake of Zn was increased obviously under the Zn supply.T o the shoot of wheat seedling,the uptake of Zn was easier than Fe under P supply,but the uptake of Fe overmatched that of Zn without P supply;For Zn and Cu,the uptake of Zn excelled that of Cu with no P supply,but the uptake of Cu outbalanced Zn after P supply,the same as the uptake between Zn and Mn.In conclusion,the different combinations of Zn and P would change the synergism or antagonism between Zn and Fe,Cu,Mn more or less

Key words: Wheat, Zn, Fe, Cu, Mn

CLC Number: 

• S512.1+1