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春季逢多雨年份,番茄秧苗不能及时移栽,为防止徒长,在北方产区常降低育苗设施内温度,以延缓其生长,但对鲜销番茄来说,这是风险极大的对策措施。低温常是导致番茄发生畸形果的主要原因,会形成大而粗糙和脐部带有疤痕的果实。番茄生长,辄因早期遇低温而出现畸形果,大田生产虽难于测算其损失,但从我们在纽约州进行的试验中获知,由于果实畸形减产20％—30％是经常性的。夜间温度在50°—60°F(即10°—15.5℃)之间和
In rainy days in spring, tomato seedlings can not be transplanted in time. In order to prevent leggy growth, the temperature in nursery facilities is often reduced in the northern producing areas to delay their growth. However, this is a very risky measure for fresh-cut tomatoes. Low temperature is often the main cause of deformed fruit in tomato, will form a large and rough and umbilical scar with fruit. Tomato growth, often because of early low temperature and the occurrence of deformed fruit, field production is difficult to measure the loss, but from our tests in New York State learned that the fruit deformity cut 20% -30% is recurrent. The nighttime temperature is between 50 ° -60 ° F (ie 10 ° -15.5 ° C)