北方园艺Issue(10)：38-45,8.DOI:10.11937/bfyy.20253966
冷藏对朱顶红开花时间和生理指标变化的影响
Effects of Cold Storage on Flowering Time and Physiological Index Changes of Hippeastrum
摘要
Abstract
Hippeastrum hybirdum'Cherry Nymph'were used as the test materials to conduct cold storage experiments,the inflorescence bud growth and flowering performances under different cold storage dates and durations were compared.Meanwhile,the content changes of carbohydrate substances and endogenous hormones in scales and inflorescence buds during cold storage were determined,in order to provide a reference for regulating flowering time of Hippeastrum for the Spring Festival.The results showed that,1)harvesting the bulbs of'Cherry Nymph'about 19 weeks before the Spring Festival,air-drying for 1 week,followed by cold storage at 9 ℃ for 8 weeks,and then planting them in a greenhouse with an average temperature of about 20 ℃ could basically meet the regulatory requirements for flowering during the Spring Festival.2)Cold storage at 9 ℃ for 6 weeks could break the slow growth state of inflorescence buds of appropriate size in the bulbs,and delaying cold storage for another 2 weeks thereafter could improve the flowering uniformity.3)During cold storage,starch content in scales continued to decrease first and then slightly recovered.sucrose content in scales increased first and then decreased,while it increased steadily in inflorescence buds.GA3 content in scales increased first and then decreased,with a change trend opposite to that of starch and consistent with that of sucrose.tZT content in inflorescence buds continued to increase first and began to decrease after 6 weeks,which was consistent with the node when the slow growth state of inflorescence buds was broken.In conclusion,cold storage treatment could be applied to regulate flowering of Hippeastrum for the Spring Festival.The increases in GA3 and sucrose contents,decrease in starch content,and sucrose transfer in scales,as well as the continuous increase in tZT and sucrose content in inflorescence buds caused by cold storage should be the key inducements for breaking the slow growth state and promoting germination of inflorescence buds in Hippeastrum.关键词
朱顶红/促花调控/冷藏/糖类物质/内源激素Key words
Hippeastrum/flowering regulation/cold storage/carbohydrates/endogenous hormones分类
农业科技引用本文复制引用
李心,吕佩奇,张永春,周琳,朱娇,杨柳燕..冷藏对朱顶红开花时间和生理指标变化的影响[J].北方园艺,2026,(10):38-45,8.基金项目
上海市科技创新行动计划资助项目(24N22800600) （24N22800600）
上海市农业科技创新资助项目(2024-02-08-00-12-F00007) （2024-02-08-00-12-F00007）
上海市植物种苗组培专业技术服务平台资助项目(21DZ2292300). （21DZ2292300）
