Correlation analysis between fruit quality indicators and soil fertility factors in Chinese bayberry
Using soil from five representative orchards in the main production areas of Chinese bayberry in Zhejiang Province and the fruits of three main varieties,Dongkui,Biqi and Dingao.The key soil fertility factors affecting the quality of Chinese bayberry fruits were screened through correlation analysis,providing theoretical basis for research on the formation of fruit quality and the improvement of management techniques.Totally 13 soil fertility factors and 18 fruit quality indicators were measured,and correlation analysis was conducted.Soil organic carbon(SOC)and organic matter(OM)were significantly positively correlated with glucose(Glu),oxalic acid(OA),and vitamin C(VC),respectively.The alkaline nitrogen(AN)of soil was significantly positively correlated with hardness(HN),total acid(TA),Glu,and OA,while the sugar acid ratio(AS)was significantly negatively correlated.Total phosphorus(TP)was significantly positively correlated with HN,TA,Glu,OA,and total flavonoids(TFC).Total potassium(TK)was significantly positively correlated with longitudinal diameter(LD),transverse diameter(BD),single fruit weight(FW),HN,soluble solids(TSS),Glu,VC,and TFC.TK had the significant positive correlation with 8 fruit quality indicators,as the main soil factor affecting fruit quality formation.It was recommended that appropriately reduced nitrogen and phosphorus,while increased potassium in the cultivation and management process was beneficial to improve fruit quality of Chinese bayberry.
Chinese bayberryfruit qualitysoil indicatorscorrelation analysis