不同浓度山梨醇处理对设施桃果实品质的影响

打开文本图片集

中图分类号：S662.1 文献标志码：A 文章编号：1003—8981（2025）03—0140—10

Abstract：【Objective】By spraying sorbitol with diferent concentrations，the effects of sorbitol on the appearance quality，sugarandacidand nutritional qualityof protected peach fruit were studied，soas toimprove thequalityof protected peach fruitand provide reference for the cultivationand management of protected peach （Prunus persica）. 【Method】The peach cultivars‘Chunxue'and‘Hongyu’withstrong growth and goodfruits wereusedas test materials.The peach treeswere sprayed with sorbitol solutions of clean water （control）， 80mmol/L ， 100mmol/L and 120mmol / Lfrom the fruit expansion stage to the color change stage，and the appearance quality （mass of single fruit，fruit shape indexandhardness），sugarandacid （solublesugar，titratableacid），massratioofsolublesolids，ndnutritionalquality （massratioof totalflavonoids，total phenols，ascorbicacidandanthocyaninspecificabsorbance）ofthe mature fruits were measured andanalyzed.【Result】Sorbitol treatments had litleefect on the fruit shape index，single fruit mass and soluble sugar content of‘Chunxue’and‘Hongyu’peaches，but spraying 100 mmol A sorbitol significantly reduced the hardnessof‘Chunxue'and increasedthecolormassratiooftotalfavonoids，total phenols，ascorbicacid，anthocains in‘Chunxue’and‘Hongyu’peaches.Theresultsofcorelation analysisand principalcomponent analysis showed that soluble solids，single fruit mass and total phenols in‘Chunxue’fruit were positivelycorrelatedwith total flavonoids. Fruit shapeindex was negativelycorrelated withhardness，sugar-acidratioandtitratable acid.Anthocyanins in‘Hongyu fruitwerepositivelycorelatedwithsolublesolids，whilesolublesolidswerenegativelycorrelated withhardness，total flavonoids and soluble sugars. 【Conclusion】 100mmol/L sorbitol treatment significantly increases the mass ratio of total phenols，ascorbic acidand anthocyanin specific absorbance‘Chunxue'and‘Hongyu’peach fruits，thus improving the quality of peach fruits.

Keyword： protected peach; ‘Chunxue’;‘Hongyu’; sorbitol; fruit quality

桃Prunuspersica为蔷薇科Rosaceae李属Prunus多年生乔本植物，作为全球广泛种植的经济作物，具有产量高，营养价值丰富等特点。（剩余13291字）