桃叶片和果实矿质元素含量

Contents of Mineral Elements in Leaves and Fruits of Peach

对桃两个品种叶片和果实的矿质元素进行了测定。结果表明，叶片中９种微量元素含量以铁为最高，按其多少的排列顺序为：铁、锰、铝、钡、硼、锶、锌、铜、钼。从展叶到果熟期，镁、铁、铝、锰、钡、锶和钼等７种元素含量逐渐增多；锌则减少。果实中各元素含量除铝显著超过锰外，其他元素含量多少的排列顺序和叶片一致。果熟时，果实的镁和锌含量降低；而铁、铝、锰、钡和锶则增加，增长最快时间在果熟前１０余天。不同品种叶片诸元素含量多少的顺序基本一致；元素含量差异不显著。

This paper analyses the contents of mineral elements in leaves and fruits of Gangshanzhao sheng peach and Yulu peach.The results indicate that the contents of 9 trace elements contained in the leaves are arranged as follows(from high to low):Fe,Mn, Al,Ba,B,Sr,Zn, Cu and Mo.The contents of Mg,Fe,Al,Mn,Ba,Sr and Mo increase gradually but Zn decreases in the leaves from the expasion period of leaves to the mature period of fruits.In fruits,the content Sequence of these elements is as the same as that in the leaves except the content of Al is higher than that of Mn.The decreses of Mg and Zn contents and the increases of Fe, Al Mn,Ba and Sr contents of fruits occur in the mature period of fruits,and the most obvious increases of Fe, Al Mn,Ba and Sr contents appear over 10 days before fruit maturing.In the leaves of 2 varieties ,the arrangement sequence of element contents iS the same,but there isn’t significant differ-ence between element contents.