For callus from mature embryo, the highest induction ratios of three varieties are 98%(Delaware), 68%(Juventus) and 72%(Taya), while for callus from mature seed, they are 75%(Delaware), 40%(Juventus) and 70%(Taya).

• 成熟胚的出愈率最高为D(98%25)，J(68%25)，T(72%25)，成熟种子的出愈率最高为D(75%25)，J(40%25)，T(7096)。