Analysis of Sugars and Acid Contents and Its Compositions in Different Ecological Peach Cultivar Groups
Studies were conducted on the distributions of sugar and acids contents of 118 peach accessions,which covered six cultivar groups in China,for providing reliable evidences of high quality peach breeding selection.In this study soluble sugar was detected by fehling reagent.Titratable acidity was detected by NaOH.Sugar compositions were detected using the high performance liquid chromatography (HPLC) method,and acid compositions were detected using ion chromatography.The results showed that cultivars derived from Northwest China high droughty peach region contain high value of acid compositions(citrale,malate),titratable acidity,total acid,with low value of sugar compositions (sucrose),total sugar,SS/TA,SSC/TA.Cultivars derived from North China plain peach region,Changjiang River Basin region contain high value of SS/TA,SSC/TA,with low value of acid compositions (citrale,malate),titratable acidity,total acid.Cultivars derived from Yunnan-Guizhou plateau peach region contain high value of soluble sugar,sucrose,total sugar,with low value of SS/TA,SSC/TA.Cultivars derived from Southern China subtropical peach region contain high value of sucrose,total sugar,SS/TA,SSC/TA,with low value of titratable acidity,citrale,malate.Cultivars derived from Northeast China high cold peach region contain high value of fructose,with low value of SS/TA,SSC/TA.For sugar compositions in different cultivars,ratio of'fructose to total sugar'is highest in Changjiang River Region cultivars,the level of'glucose to total sugar'is high in Northwest China cultivars.The ratio of'sorbitol to total sugar'is highest in Southern China cultivars,but lowest in Northest China cultivars.Ratio of'sucrose to total sugar'have no significant difference in six ecological cultivar groups.For the analysis of acid compositions,Changjiang River Region cultivars have high level of citrale,but cultivars of Southern China have a lower level with highest level of quinate.The ratios of succinic and malate acids have no significant difference in six ecological cultivar groups.
NETL
NSTL
万方数据
维普
