摘要： 在露地条件下研究了2个品种的花椰菜在7个播种期下的生长发育特性,同时探讨了环境条件对花球形成的影响。结果表明,在不同播种期下,花椰菜的生长发育状况存在很大差异,但现球期和成熟期之间存在极显著的正相关;在一定播种期内,叶片数可作为花球形成的一个形态指标;在不适宜的花球诱导条件下,影响花球形成的因素极其复杂,高温和减少光照时间均能抑制或推迟花球的形成。

关键词: 花椰菜, 播种期, 生长发育特性, 温度, 光照

Abstract: The growth and development characteristichs were studied of 2 cauliflower cultivars at 7 sowing dates如field condition,and the effect of environment on curd initiation was discussed, also.Results are suggested that growth and development states of cauliflower are different from sowing dates,and there is a positive correlation between curd initiation days and maturity days.The visible leaves numbers can be used as a morphological marker at suitable sowing dates.The factors of influencing curd initiation are very complicated in unsuitable curd initiation condition,both high temperature and reducing light duration can inhibit or delay curd initiation.

Key words: Cauliflower, Sowing date, Growth and development characteristics, Temperature, Light duration

中图分类号: 

• S635.3