In order to objectively and quantitatively evaluate the influence of climate on soluble solid content(SSC)of Bingtangcheng sweet orange(Citrus sinensis Osbeck)in Huaihua,the SSC data of Bingtangcheng of 8 consecutive years from 2015 to 2022 in Mayang County and Hongjiang City in Huaihua were used to establish index model of comprehensive climate quality(Iocq)of SSC and divide the Iocq level of SSC with stepwise regression,multiple linear regression and cluster analysis methods.The results showed that the daily range of average temperature from mid-July to mid-September,the precipitation from mid-June to early October and the sunshine duration from mid-August to mid-September were the key meteorological factors affecting SSC with weight coefficients of 0.46,0.34,and 0.20,respectively.Referring to quality grade standard of Bingtangcheng in Hunan,when Iocq≥2.4,the fruit was super excellent,when 2.4＞Iocq≥1.6,the fruit was superior,when 1.6＞Iocq≥0.6,the fruit was first-class fruit,and when 0.6＞Iocq,the fruit was second-class.The regression accuracy of the SSC climate quality evaluation method is 93.8％.The results of SSC comprehensive climate quality assessment of Bingtangcheng in Tongmu Town of Zhongfang County from 2019 to 2021 tested by this standard were completely correct.This model can be applied to practically evaluate the SSC quality of Bingtangcheng.
维普
万方数据
