大棚里种的黄瓜、西红柿、茄子、辣椒等蔬菜,具有生长快、成熟早、经济效益高的优点。“好种出好苗,好苗产量高”,于是许多菜农就到大棚里选留菜种。其实,这是不可取的。因为大棚里的蔬菜生长温度与外界自然温度不太一致,大棚里的蔬菜抗逆性 Greenhouses in the cucumber, tomato, eggplant, peppers and other vegetables, with fast growth, early maturity, the advantages of high economic returns. “Good kind of good seedlings, good seedlings high yield,” so many farmers went to the greenhouse to stay for food. In fact, this is not desirable. Because the greenhouse vegetable growth temperature and the outside world is not the same temperature, greenhouses in the resistance of vegetables