营养失调被认为是引起柑桔衰退的主要原因之一,而砧木在树体营养方面起着极为重要的作用。叶片营养成分的差异可能是由于砧木吸收养分的能力和经嫁接口向叶片转运养分的能力不同所致。因此,作为商品栽培,必需选择合宜的砧木种类。为维持生长和产量,对砧木吸收养分的能力作出评价是 Malnutrition is considered as one of the main causes of citrus recession, and rootstock plays a very important role in tree nutrition. The difference in nutrient content of leaves may be due to the ability of rootstocks to absorb nutrients and their ability to transport nutrients to the leaves through grafted interfaces. Therefore, as a commercial cultivation, it is necessary to select a suitable rootstock species. The ability of rootstocks to absorb nutrients is evaluated in order to maintain growth and yield