光周期对人参菜开花和品质的调控作用  

Regulation of Photoperiod on Flowering and Quality of Talinum crassifolium(Jacq.)Gaertn.

作　　者：严文一 贺忠群[1] 王一鸣 谢永东[1] 仰路希 姜微秀 YAN Wenyi;HE Zhongqun;WANG Yiming;XIE Yongdong;YANG Luxi;JIANG Weixiu(College of Horticulture,Sichuan Agricultural University,Chengdu 611130,China;Neijiang Academy of Agricultural Sciences,Neijiang,Sichuan 641000,China;Agriculture and Rural Affairs Bureau of Bayi District,Linzhi City,Tibet,Linzhi,Tibet 860100,China)

机构地区：[1]四川农业大学园艺学院,成都611130 [2]四川省内江市农业科学院,四川内江641000 [3]西藏林芝市巴宜区农业农村局,西藏林芝860100

出　　处：《西北植物学报》2020年第8期1364-1371,共8页Acta Botanica Boreali-Occidentalia Sinica

基　　金：雅安市市校合作项目。

摘　　要：为筛选促进人参菜品质形成的最佳光周期,通过盆栽试验,研究了不同光周期对人参菜生长和品质的影响,以及人参菜开花过程中生理特性的变化规律。结果表明:(1)延长光周期不仅有利于人参菜的生长还能促进其营养品质的形成。(2)在光周期为14 h/10 h(昼/夜)时,人参菜的株高、茎粗、根长、叶面积以及地上部分干鲜重均优于其他处理,长势最佳,人参菜叶片中纤维素、VC、齐墩果酸、类黄酮、总酚以及游离氨基酸含量最高,品质最佳。(3)在光周期为14 h/10 h时,人参菜叶片的可溶性糖、可溶性蛋白以及Ca含量在花期均呈先上升后下降的趋势。研究认为,光周期为14 h/10 h对人参菜生长及品质的提升效果最好,其开花过程可能与可溶性糖、可溶性蛋白以及Ca的代谢有关。In order to screen the best photoperiod to promote the quality of Talinum crassifolium(Jacq.)Gaertn.,we conducted pot experiment to study the influence of different photoperiods on the growth and quality of T.crassifolium,as well as the changes of physiological characteristics during the flowering process.The results showed that:(1)the extension of photoperiod was not only beneficial to the growth of T.crassifolium,but also promoted the formation of its nutritional quality.(2)Under the photoperiod of 14 h/10 h(Day/night),the plant height,stem diameter,root length,leaf area and dry and fresh weight of shoots in T.crassifolium were better than other treatments,and the growth was the best.The contents of cellulose,VC,oleanolic acid,flavonoids,total phenol and free amino acid in T.crassifolium were the highest.(3)The contents of soluble sugar,soluble protein and Ca in T.crassifolium leaves increased at first and then decreased at 14 h/10 h photoperiod.In conclusion,14 h/10 h photoperiod was the best for the growth and quality of T.crassifolium and its flowering process may be related to the metabolism of soluble sugar,soluble protein and Ca.

关 键 词：人参菜 光周期 开花 品质 调控 

分 类 号：Q945.43[生物学—植物学] Q945.79