Experts at Purdue University Extension in Indiana say tomatoes started from seed take 45 to 90 days until till harvest.The average air temperature should be about 24 degrees Celsius.

• 美国印第安纳州普渡大学的专家们说，番茄从播种到收获大概要45到90天，空气平均温度要达到约24摄氏度。