|Table of Contents|

Effects of Nano-SiO2 on Photosynthetic Characteristics and Quality of Strawberry

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年04
Page:
35-42
Research Field:
Publishing date:

Info

Title:
Effects of Nano-SiO2 on Photosynthetic Characteristics and Quality of Strawberry
Author(s):
CHEN Bin1; HU Yunli2; ZHAN Pinghua1; MENG Qian1; LI Siliang3; 4; NI Wuzhong3
(1.Tonglu Meteorological Bureau,Tonglu,Zhejiang 311500；2.Hangzhou Meteorological Bureau,Hangzhou,Zhejiang 310051；3.College of Environmental and Resource Science/Zhejiang University,Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment,Hangzhou,Zhejiang 310058；4.Hangzhou Lenong Agricultural Technology Co.Ltd.,Tonglu,Zhejiang 311500)
Keywords:
nano-SiO2; strawberry; photosynthetic characteristics; quality
PACS:
-
DOI:
10.11937/bfyy.20192408
Abstract:
‘Zhangji’ strawberry was used as experimental materials to study the effects of spraying different concentrations of nano-SiO2 (0,100,300,500 mg·L-1) on photosynthetic characteristics of strawberries,and to compare the photosynthetic-light response curve,photosynthetic-CO2 response curve quality response of strawberry under different concentrations of nano-SiO2.The results showed that each treatment could promote the maximum net photosynthetic rate (Anmax) and photosynthetic capacity (Pnmax) of strawberry.The light compensation point (LCP),CO2 compensation point (CCP) and photorespiration rate decreased,the initial carboxylation efficiency (α) and CO2 saturation point (CSP) increased,which enhanced the environmental adaptability of strawberry,300 mg·L-1 treatment had the best promoting effect on photosynthesis of strawberry.Chlorophyll fluorescence parameters (ΦPSⅡ,Fv/Fm,and qP) were all maximal under the treatment of 300 mg·L-1,while Fv′/Fm′ was the highest under the treatment of 100 mg·L-1.There was no significant difference among other treatments.Spraying different concentrations of nano-SiO2 significantly increased soluble solids content and soluble sugar content of fruits,reduced titratable acid content,sugar-acid ratio was significantly higher than control,and 300 mg·L-1 treatment was the best.The treatment with 300 mg·L-1 and 500 mg·L-1 of nano-SiO2 significantly increased the vitamin C content.Therefore,proper application of nano-SiO2 could enhance the utilization efficiency of light and improve photosynthetic performance,and promote quality of strawberry.

References:

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Last Update: 2020-03-29