一品红温室栽培目标花期关键技术  

Technique of Target Flowering Time of Poinsettia in Greenhouse Cultivation

作　　者：贾明[1] 姚愚[1] 瞿兆赛[1] 严志衡 虞冠军[2] 

机构地区：[1]浦东新区农业技术推广中心,上海201201 [2]上海交通大学农业与生物学院,上海201101

出　　处：《上海交通大学学报（农业科学版）》2006年第2期157-160,176,共5页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金：上海市科委发展基金资助项目(013112120)

摘　　要：调节一品红在国庆节前开花,只有选择对感光不敏感的品种如千禧、旗帜,在常温下,每天光照时间为8h30min,时间长达70～80d,才能做到一品红在国庆节前供市。调节一品红在“五一”节前开花,补光时间要从第1年9月底至第2年2月底,时间长达5个月,每晚补光4h,每天光照时间长达15h左右,晚上光照强度400lx,夜间温度要保持在13℃;再经过1个星期的自然光照,又要进入遮光阶段,从3月7日开始,每天下午4:00至翌日早上8:00用黑色厚膜遮光,每天光照时间为8h,一直到全部苞片转红为止,时间长达50d。A key technique of target flowering time of Poinsettia in greenhouse cultivation was developed. The study showed that to choose lower photoperiod sensitive varieties such as Qianxi and Banner（Qizhi） keep the light time 8.5 h· d^-1 between 70-80 d. will regulate the target flowering time until National Day. If to regulate the target flowering time at May Day, should added light time 4 h per night at 400 lx and keep the light time 15 h·d^-1from end of Sep. of last year to Feb. of this year and the night temperature at 13 ℃ than into a natural light time about one week and a shade stage, shade time from 4：00 pm to 8：00 am of next day about 50 d and keep the light time 8 h· d^-1 until the all bracts turn to red.

关 键 词：一品红 温室栽培 目标花期关键技术 花芽分化 

分 类 号：S681.9[农业科学—观赏园艺]