不同根砧對葡萄柚幼苗葉內無機養分含量影響初報

Preliminary Report on the Leaf Minerals Content of Young Grapefruit Trees as Influenced by Various Rootstocks

不同柑橘根砧對葡萄柚幼苗葉內無機養分合量有影響。除葉內磷及鐵外，採用晚白柚，蜜柚，斗柚及酸柚等作根砧，葡荷柚葉內氮，鈣、鎂及銅等養分含量較高。採用粗檸檬，廣東檸檬及扁橘等作根砧，則葡萄柚葉內鉀及錳等養分含量較高。

Minerals content in the leaves of young grapefruits were found to be affected by different rootstocks. With the exception of P and Fe, higher concentrations of N, Ca, Mg and Cu were found in the leaves when grafting on late white pummelo, honey pummelo, or sour pummelo rootstocks. While higher K and Mn content were found in scions grafted on rough lemon, Rangpur lime or Oblate tangerine rootstocks.