摘要
【目的】探讨适宜蝴蝶兰抽梗的温度,为生产管理提供依据,也为难催花品种及低温替代提供参考。【方法】以‘火凤凰’蝴蝶兰袋苗为材料,在人工气候箱条件下,采用单因素随机区组试验设计方法,设置5个温度处理,分别为29/22、26/19、23/16、20/13、17/10℃(日/夜),每个处理温差均为7℃,昼夜光周期10 h/14 h,相对湿度75%。【结果】26/19℃处理后蝴蝶兰抽梗时间最早,处理后30 d抽梗,抽梗率为100%,抽梗指数为14.86;23/16℃处理后36 d抽梗,抽梗率达100%,抽梗指数为2.41;20/13℃处理后40 d抽梗,抽梗率为95%,抽梗指数为1.13。20~26℃处理抽梗前可溶性糖、可溶性蛋白质、丙二醛含量显著上升,抽梗后显著下降。抽梗前超氧化物歧化酶活性上升。【结论】蝴蝶兰最适抽梗温度为26/19℃;29/22℃处理未抽出花序轴,表明高温条件下蝴蝶兰不能诱导开花;17/10℃处理引起低温伤害,培育一段时间后转移到较高温度可以抽出花梗,但花梗质量偏差。
【Objective】The experiment was to explore the appropriate temperature for the infarction of Phalaenopsis amabilis in order to provide basis for production management and provide references for varieties that have difficulty in flower induction as well as low temperature substitution.【Method】Taking the‘fire phoenix’P.amabilis bag seedlings as test materials,under the condition of artificial climate box,the single-factor randomized group was adopted as experiment design method.Five temperature treatments were set:29/22℃,26/19℃,23/16℃,20/13℃and 17/10℃(day/night).The temperature difference in each treatment was 7℃,the photoperiod was 10h/14h and the relative humidity was 75%.【Result】The P.amabilis had the earliest infarction time under the treatment at 26/19℃,and it started the infarction after being treated for 30 days,with the infarction rate of 100%and the infarction index of 14.86.The infarction started after treatment at 23/16℃for 36 days,with the infarction rate of 100%and the infarction index of 2.41.The infarction started after treatment at 20/13℃for 40 days,with the infarction rate of 95%and the infarction index of 1.13.The contents of soluble sugar,soluble protein and malondialdehyde increased significantly before infarction at 20-26℃,and decreased significantly after infarction.SOD activity increased before infarction.【Conclusion】The optimum temperature for the infarction of P.amabilis was 26/19℃.The inflorescence axis was not extracted at 29/22℃,indicating that P.amabilis could not induce flowering under high temperature conditions.The treatment at 17/10℃caused low temperature damage.After a period of incubation,the pedicels could be extracted by being transfered to a higher temperature,but the quality of the pedicels was deviated.
作者
唐芸妃
徐旭华
丰锋
赖思婷
杨世茵
区健晴
廖菲
TANG Yunfei;XU Xuhua;FENG Feng;LAI Siting;YANG Shiyin;OU Jianqing;LIAO Fei(College of Coastal Agriculture Sciences,Guangdong Ocean University,Zhanjiang 524088,China)
出处
《广东农业科学》
CAS
2020年第9期47-52,共6页
Guangdong Agricultural Sciences
基金
教育部卓越农林人才培养计划项目(GDOU2014041204)
国家级大学生实践教学基地——农科教合作人才培养基地建设专项(GDOU2013040301)
国家级大学生创新创业项目(201810566010,CXXL2020063)。
关键词
蝴蝶兰
温度
花芽分化
抽梗指数
花梗质量
Phalaenopsis amabilis
temperature
flower bud differentiation
infarction index
pedicel quality
