芹菜是广大农民,尤其郊区菜农多年种植的主栽蔬菜,也是大中城市国庆、元旦、春节三大节日供应不可一缺的风味特优品种。由于芹菜性喜阴凉、怕热,一般以秋冬季栽培为主。但在7～8月份育苗,也正值高温干旱或多雨季节,加之种子细小,不仅幼苗期极不耐高温干旱,育苗十分困难且生长非 Celery is the majority of peasants, especially vegetables grown in rural suburbs for many years the main vegetables, but also large and medium-sized cities National Day, New Year’s Day, Spring Festival holiday supply three indispensable flavor premium varieties. Since celery sex likes cool, afraid of heat, the main cultivation in autumn and winter. However, 7 to August nursery, but also coincides with the hot dry or rainy season, coupled with the small seeds, not only extremely resistant to high temperature and drought seedling stage, nursery very difficult to grow and non