不同因素对猕猴桃可溶性固形物便携式无损检测仪精度的影响  

Influence of different factors on the precision of portable nondestructive testing instrument for soluble solid of kiwifruit

作　　者：张琛[1] 郗笃隽[1] 裴嘉博[1] 阮若昕 骆慧枫 黄康康[1] 刘辉[1] ZHANG Chen;XI Dujun;PEI Jiabo;RUAN Ruoxin;LUO Huifeng;HUANG Kangkang;LIU Hui(Institute of Horticulture,Hangzhou Academy of Agricultural Sciences,Hangzhou 310024,China)

机构地区：[1]杭州市农业科学研究院园艺研究所,杭州310024

出　　处：《上海农业学报》2024年第6期119-124,共6页Acta Agriculturae Shanghai

基　　金：浙江省科技计划项目(2021C02066-8-3);浙江省果品产业技术区试站项目(2024QYGP01);杭州市农科院科技创新与示范推广基金(2022HNCT-14)。

摘　　要：为探究品种、成熟度、样本量对猕猴桃可溶性固形物便携式无损检测仪精度的影响,比较分析了不同品种猕猴桃、不同后熟程度及不同样本量条件下猕猴桃可溶性固形物无损检测值与真实值间的决定系数,并通过支持向量机学习回归对部分参数与决定系数间相关性进行了分析。结果表明:无损检测仪检测红肉、黄肉、绿肉猕猴桃可溶性固形物时决定系数各不相同。当红肉猕猴桃成熟度中等(11.5%<SSC<15.5%)时,决定系数较高,最高可达0.9,支持向量机回归分析显示成熟度与决定系数间的相关指数为0.49。样本的数目亦会影响决定系数,需结合品种综合考虑。综上,在使用便携式无损检测仪测定猕猴桃可溶性固形物时,品种、成熟度、样本量均会对检测精度造成不同程度的影响。在实际生产操作中需综合考虑多种因素以提高无损检测的精度。In order to explore the influence of cultivar,maturity and sample size on the accuracy of portable non-destructive testing instrument for soluble solid of kiwifruit,the determination coefficient between the non-destructive testing value and the real value of soluble solid of kiwifruit under different cultivars,different post-ripens and different sample size conditions was compared and analyzed.The correlation between some parameters and determination coefficients was analyzed by support vector machine learning regression.The results showed that the determination coefficients of soluble solid in red,yellow and green kiwifruit were different.When red kiwifruit maturity was medium(11.5%<SSC<15.5%),the coefficient of determination was high,up to 0.9,support vector machine regression analysis showed that the correlation index between maturity and coefficient of determination was 0.49.The number of samples would also affect the coefficient of determination,but need to be considered in combination with the cultivar.Therefore,when the portable non-destructive testing instrument was used to determine the soluble solid of kiwifruit,the cultivar,maturity and sample size would have different degrees of influence on the detection accuracy.It was necessary to combine many factors in actual production operation to improve the precision of nondestructive testing.

关 键 词：猕猴桃 可溶性固形物 无损检测 支持向量机 

分 类 号：S663.4[农业科学—果树学]