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西芹适宜在冷凉、湿润的环境下生长，高温干旱对其正常生长极为不利。西芹种子发芽最适温度为１５～２０℃，超过３０℃其呼吸作用就会停止。２０００年夏季，北方地区持续高温天气给西芹生产造成了严重危害。主要表现在：（一）幼苗期生长点因高温灼伤产生分蘖，生长点钝化，?
Celery suitable for growth in cool, humid environment, high temperature and drought on its normal growth is extremely unfavorable. Celery seed germination optimum temperature of 15 ~ 20 ℃, more than 30 ℃ its respiration will cease. In the summer of 2000, the continuous high temperatures in the north caused serious harm to celery production. Mainly in: (a) seedling growth point due to high temperature burns produce tillering point of growth passivation?