LIANG Xiaojie,HE Xinru,HE Jun,et al.Effects of Different Tree Shapes and Picking Periods on the Fruit Quality of New Strain of Lycium barbarum L.[J].Northern Horticulture,2023,(02):104-111.[doi:10.11937/bfyy.20221969]
不同篱架树形及采摘期对宁夏枸杞新品系果实品质的影响
- Title:
- Effects of Different Tree Shapes and Picking Periods on the Fruit Quality of New Strain of Lycium barbarum L.
- Keywords:
- new strain of wolfberry; tree shape; picking period; fruit quality
- 文献标志码:
- A
- 摘要:
- 以宁夏枸杞新品系“宁农杞15号”干果果实为试材，采用方差分析及主成分分析的方法，研究了不同篱架树形、不同采摘期对枸杞果实中营养成分含量的影响，以期找出最适宜“宁农杞15号”果实营养成分积累的树形。结果表明：果实中总糖、黄酮、类胡萝卜素含量在不同树形、不同采摘期下均存在显著差异，且二者对含量的影响存在交互效应；枸杞多糖含量仅在不同采摘期存在显著差异，其为主效应因子；甜菜碱含量仅在主干形的不同采摘期下以及6月29日的不同树形下存在显著差异，但二者对含量的影响存在交互效应。随着时间推移，果实中总糖含量递增、黄酮含量递减、枸杞多糖含量先减后增，甜菜碱与类胡萝卜素则均呈先增后减的趋势；不同树形条件下，总糖、枸杞多糖与类胡萝卜素含量均为主干分层形＞主干形＞单干双臂形，甜菜碱含量为主干形＞单干双臂形＞主干分层形，黄酮含量为主干形＞主干分层形＞单干双臂形。最终采用主成分分析法进行综合评价，得分由高到低分别是主干形（0.702）＞主干分层形（0.649）＞单干双臂形（-1.351），即主干形最有利于枸杞新品系“宁农杞15号”果实营养品质形成。
- Abstract:
- Taking the dried fruits of ‘Ningnongqi No.15’,a new strain of Lycium barbarum L.as experimental materials,the effects of different tree shapes and picking periods on the nutritional quality contents in dried fruits were studied by means of variance analysis and principal component analysis,in order to find out the most suitable tree shape for the accumulation of nutrients in ‘Ningnongqi No.15’ fruit.The results showed that there were significant differences in the contents of total sugar,flavonoids and carotenoids in fruits of different tree shapes and picking periods,and the effects of the two on the contents were interactive.Lycium barbarum polysaccharide content in dried fruits was significantly different only in different picking periods,which was the main effect factor.The betaine content was only significantly different under different picking periods of the trunk shape and under different tree shapes on June 29 ,but there was an interaction effect between the two factors on the content.As time went by,the content of total sugar in dried wolfberry fruits increased gradually,the content of flavonoids decreased gradually,the content of Lycium barbarum polysaccharide showed a trend of first decreasing and then increasing,while betaine and carotenoid both showed a trend of increasing first and then decreasing.Under different tree shape conditions,the contents of total sugar,Lycium barbarum polysaccharides and carotenoids were all in the form of trunk layered tree shape > trunk tree shape > single trunk double arm tree shape,betaine content in the trunk tree shape > single trunk double arm tree shape > trunk layered tree shape,flavonoids content in the trunk tree shape > trunk layered tree shape > single trunk double arm tree shape.Finally,the principal component analysis method was used for comprehensive evaluation,and the scores from high to low were trunk tree shape (0.702) > trunk layered tree shape (0.649) > single trunk double arm tree shape (-1.351),that was,the trunk tree shape was most favorable for nutrient quality formation of ‘Ningnongqi No.15’ fruit.
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备注/Memo
第一作者简介：梁晓婕（1991-），女，硕士，助理研究员，现主要从事枸杞栽培及育种等研究工作。E-mail：1083181364@qq.com.责任作者：田建文（1965-），男，博士，研究员，现主要从事农产品品质等研究工作。E-mail：nxlyzj@163.com.基金项目：宁夏回族自治区科技惠民专项资助项目（2020CMG03017）。收稿日期：2022-05-12