江西农业大学学报2025，Vol.47Issue(3)：640-649,10.DOI:10.3724/aauj.2025055
采前覆膜对'纽荷尔'脐橙果实贮藏期品质的影响
Effect of pre-harvest mulching on fruit quality of'Newhall'navel orange during storage
摘要
Abstract
[Objective]This study aims to investigate the impact of different preharvest mulching on the fruit quality of'Newhall'navel orange fruits during storage,thus providing reference for improving the harvest quality and prolonging storage period of citrus fruit.[Method]Three mulching including black gardening cloth(F1),silver black reflective film(F2),and moisture permeable reflective film(F3)covered the tree disk at the fruit color transition period,and no covering-material was used as the control(CK).The effect of different mulching treatments on light and soil properties,fruit color,weight loss rate,respiration rate,decay rate,sugar and acid contents were assessed over a storage period of 0-120 d at controlled room temperature.[Result]F2 and F3 treatments improved light intensity and reflectance within the tree canopy,thereby promoting the development of fruits inside the canopy.Additionally,both treatments effectively regulated soil moisture content and temperature,offering more stable environmental conditions for the growth of fruit trees.During fruit storage,the a* value(red intensity)and citrus color index(CCI)of fruits treated with F2 and F3 are significantly higher than those of F1 treatment and the control group(CK),indicating that F2 and F3 treatments can maintain the fruits vibrant color,and enhance their visual quality.However,the b* value(yellow intensity),H°(hue angle),and L* value(brightness)were relatively lower in fruits treated with F2 and F3.Moreover,F1 treatment increased the fruit decay rate but F2 treatment reduced the fruit decay rate.Both treatments had no significant effect on fruit weight loss rate.F3 treatmen not only significantly reduced the fruit decay rate and weight loss rate but also increased the respiration rate in the early storage stages of'Newhall'navel orange fruits.Fruit quality analysis showed that both F2 and F3 treatments significantly increased the contents of titratable acidity(TA),total soluble solids(TSS),and vitamin C(Vc)of the'Newhall'navel orange fruits,while the F1 treatment had no remarkable effect on these indicators.Analysis of sugar components revealed that the three mulching treatments significantly increased the levels of fructose,glucose,and sucrose in'Newhall'navel orange fruits at harvest.These sugars decreased with the extension of storage time.The fruits treated with F1 had lower fructose content and higher glucose content than those of the CK,and sucrose was not different from that of the CK.The fruits under F2 treatment accumulated higher glucose contents,but no difference in fructose and sucrose contents compared with that of the CK.The fruits under F3 treatment always had the highest contents of fructose,glucose,and sucrose during all storage stages.However,the three mulching treatments showed no significant effect on the organic acid content.[Conclusion]Preharvest F3 treatment significantly improved the fruit color and increased the accumulations of TA,TSS,Vc,and soluble sugars including fructose,glucose,and sucrose in'Newhall'navel orange during storage,and contributed to the improvement of fruits quality.Additionally,it can effectively improve the quality of'Newhall'fruits while significantly reducing the decay rate and weight loss rate,thereby enhancing their storage durability.关键词
'纽荷尔'脐橙/覆膜/果实品质/贮藏性Key words
'Newhall'navel orange/mulching/fruit quality/storage property分类
轻工纺织引用本文复制引用
蔡祥斌,吴庆安,陈梦如,何思佳,李杨金,陈金印,辜青青,魏清江..采前覆膜对'纽荷尔'脐橙果实贮藏期品质的影响[J].江西农业大学学报,2025,47(3):640-649,10.基金项目
国家自然科学基金项目(32260751)和江西省农业关键核心技术攻关项目(JXNK202304-04)Project supported by the National Natural Science Foundation of China(32260751)and Jiangxi Provincial Agri-cultural Key Technology Research Project(JXNK202304-04) （32260751）
