Effects of COR and Me-JA on Mineral Elements in L.japonica

ICP-AES technique was used to determine the content,accumulation and proportion of mineral elements in L.japonica and analyze the differences after treatment by COR and Me-JA.The results show that:(1) The content of K,Mg,Na,Zn,B and Si in L.japonica were increased by 5.82%,2.55%,155.17%,5.34%,16.11% and 142.15% respectively after treatment by COR,while the content of P,Ca,Fe and Mn was reduced by 3.99%,19.20%,38.89% and 35.96%(2) After treatment by Me-JA,the content of K,Na,Zn,B,and Si were increased by 4.46%,137.93%,6.09%,10.09% and 89.24%,however the content of P,Ca,Mg,Fe and Mn were decreased by 9.82%,20.29%,8.49%,42.00% and 36.80% respectively.(3) When treated by COR and Me-JA,K∶P and Na∶Zn were increased,while Ca∶Mg and Fe∶Mn and B∶Si were decreased.The results of this study define the influence of COR and Me-JA on the mineral elements of L.japonica,and provide a scientific basis for the rational use of plant growth regulators as well.