关键词: 枸杞, 微生物肥料, 叶绿素荧光参数

Abstract: [Objective] Under the field experimental conditions,5year-old L. Barbarum (Ningqi No1)from Gansu Jingtai Yujie Agricultural Trade Limited Company was taken as research material.The effects of different microbial fertilizers on chlorophyll fluorescence parameters of L. barbarum were compared. [Method] A randomized block experiment design was used to investigate chlorophyll fluorescence power curve,photoresponse curve,photochemical quenching coefficient (qP) and non-photochemical wuenching (NPQ)in different treatments. [Results] Microbial fertilizers improved the light use efficiency and increased maximal fluorescence (Fm),PSⅡ maximal photochemical efficiency (F_v/F_m),PSⅡ potential liveness (F_v/F₀),quantum yield of PSⅡ linear electron Y(Ⅱ) relative concentrations electronic transmission rate (ETR),photochemical quenching coefficient (qP) and photosynthetic capacity. [Conclusion] The results indicated that biological humic acid increased the ability captured efficiency of PSⅡ reaction center obviously and light and electron transfer energy,but reduced the non radiative loss of photosynthesis.

Key words: Lycium barbarum L, microbial fertilizer, chlorophyll fluorescence parameters