摘要
以2份单性结实能力不同的黄瓜为试材,于不同温度条件下进行单株坐果率测定;在光照培养箱内设置30℃/25℃,25℃/10℃(日温/夜温)2个温度处理,测定不同温度下花后0、2、4、6 d子房赤霉素(GA3)、脱落酸(ABA)、生长素(IAA)和玉米素(ZT)4种内源激素的含量,以期为亚低温环境下黄瓜生产和耐低温黄瓜品种选育提供参考依据。结果表明:1)亚低温有利于黄瓜单性结实,且对不同试材的影响程度不同;2)亚低温能够降低花后2、4 d黄瓜子房ABA、IAA含量;3)花后0~4 d子房低ABA含量有利于黄瓜单性结实,GA3、IAA、ZT与ABA的比值与黄瓜单性结实能力呈正相关。
Taking two cucumbers with different parthenocarpy ability as the materials,the fruit setting rate of each plant under different temperatures was tested.Setting two temperature treatments30℃/25℃,25℃/10℃(daily/night)for the light incubator,the contents of gibberellin (GA3),abscisic acid (ABA),auxin (IAA)and zeatin (ZT)of ovary at 0,2,4days and 6days after the anthesis were measured,in order provide a reference for the cucumber production with sub-low temperature environmentand the breeding of low temperature tolerance cucumbers varieties.The results showed that,1)sub-low temperature was benefit to the parthenocarpy of cucumbers,but the effects were different on different materials;2)sub-low temperature could reduce ABA and IAA of cucumbers ovary of 2days and 4days after anthesis;3)low ABA contents of ovary from 0to 4days after anthesis was benefit to the cucumbers parthenocarpy,the ratio of GA3,IAA,ZT to ABA was positively correlated with cucumbers parthenocarpy.
作者
张东琴
侯栋
岳宏忠
李亚莉
ZHANG Dongqin;HOU Dong;YUE Hongzhong;LI Yali(Institute of Vegetables,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu 730070)
出处
《北方园艺》
CAS
北大核心
2021年第11期50-56,共7页
Northern Horticulture
基金
甘肃省农业科学院中青年基金资助项目(2017GAAS77)
国家大宗蔬菜产业技术体系兰州综合试验站资助项目(CARS-23-G-19)。
关键词
黄瓜
单性结实
亚低温
内源激素
cucumber
parthenocarpy
sub-low temperature
endogenous hormone
