1、培养材料的采集要根据培养目的适当选取材料,选择原则:易于诱导、带菌少。要选取植物组织内部无菌的材料。这一方面要从健壮的植株上取材料,不要取有伤口的或有病虫的材料。另一方面要在晴天,最好 1, the collection of training materials According to the purpose of training appropriate selection of materials, select the principle: easy to induce, with less bacteria. To select the sterile material inside the plant tissue. On the one hand, we should take materials from robust plants and do not take wounds or pests. On the other hand in sunny days, the best