四川各地栽培的柠檬,多用甜橙作砧木。甜橙砧柠檬表现丰产,品质优良等特点,但最不耐流胶病(根颈皮层坏死流胶)。1966年我们用四川红桔作砧木嫁接尤力克柠檬3000株,67年间种于大柠檬树株间,两年来生长良好,树势旺盛,值得注意的是红桔砧柠檬没有流胶病为害。将调查结果列下表: Lemon cultivated throughout Sichuan, the use of orange as rootstock. Sweet orange anvil lemon performance, high quality, and other characteristics, but the most resistant to gluten disease (root neck necrosis gel). In 1966, we used the rootstock of Sichuan red orange as the rootstock to graft 3000 plants of Youlich lemon, which was planted in the big lemon tree for 67 years. The growth was good in two years and the tree vigor was strong. The survey results in the table below: