Rootstock Grafting Helps Improve Main Metal Nutrient Translocation of Bleeding Sap in Muskmelon

Abstract

This paper was focused on the discussion about the main metal nutrients translocation in bleeding sap during muskmelon development and it was improved by rootstock grafting. The total translocation volume of metal nutrients in bleeding sap of each treatment depicted the same trend where G1 (Zhongmi 1/Riben Strong) and G3 (Zhongmi 1/Shengzhen 1) improved the supply capacity of metal nutrients to the aboveground parts and there were no concentration and translocation volume changes for each metal ion in bleeding sap with dissimilar rootstocks grafting when G1 and G3 improved the supply capacity of potassium, natrium, calcium, magnesium, ferrum, cuprum and zinc to the over ground parts from the root system, and furthermore G2 (Zhongmi 1/Quanwang) and G3 reduced manganese translocation in bleeding sap significantly on 10 DAA (days after anthesis) and manganese translocation in G1 and G3 during 20 to 30 DAA were remarkably higher than that in CK and G2, while manganese translocation in G3 was notably higher than that in the other treatments on 40 DAA. So based on the main metal nutrient supply capacity of the root system for comprehensive considerations, G1 and G3 were superior scion/rootstock combinations for top quality and high yield potential.