沈阳农业大学学报2025，Vol.56Issue(5)：36-43,8.DOI:10.3969/j.issn.1000-1700.2025.05.004
喷施茉莉酸甲酯对南果梨品质的影响
Influence of Methyl Jasmonate on Quality of Nanguo Pear
摘要
Abstract
[Objective]The quality of fruit not only determines its commercial value but also significantly influences consumer purchasing decisions.Consequently,the exploration of effective techniques to regulate fruit quality is of great significance.Methyl jasmonate(MeJA)is a vital plant growth regulator known for its role in enhancing plant stress resistance and improving fruit quality.This study aims to investigate the effect of exogenous MeJA on the fruit quality of Nanguo pear and to explore effective methods to enhance the commercial value and market competitiveness of Nanguo pear.[Methods]The Nanguo pear at 84,99,and 114 days after full bloom were treated with water(CK)and MeJA(0.50 mmol·L-1,MeJA 0.75 mmol·L-1,and 1.00 mmol·L-1),and then were sampled for measurements at 90,105,and 120 days(7 days post-treatment),respectively.The relevant indicators of the external(fruit weight,fruit shape index,hardness)and internal(chlorophyll,carotenoids,anthocyanins,flavonoids,total phenols,soluble solids,soluble sugar,starch content)qualities of the fruits were assessed.[Results]The application of MeJA did not exert a significant impact on the fruit shape index,hardness,carotenoid content,total phenols,and flavonoids in the peel of the Nanguo pear.However,treatments with 0.50 mmol·L-1 MeJA and 0.75 mmol·L-1 MeJA facilitated the accumulation of chlorophyll a,soluble solids,and starch content.Notably,at 90 days after full bloom,both 0.50 mmol·L-1 MeJA and 0.75 mmol·L-1 MeJA treatments enhanced anthocyanin content.Furthermore,0.50 mmol·L-1 MeJA increased chlorophyll b and total chlorophyll content.Whereas,1.00 mmol·L-1 MeJA treatment resulted in an increase in fruit weight and sugar content(soluble solids,soluble sugar,starch),and had the most pronounced effect on reducing chlorophyll levels.[Conclusion]Considering the comprehensive assessment of both external and internal quality indicators,the 1.00 mmol·L-1 MeJA treatment was most effective in enhancing the quality of Nanguo pear.This treatment could serve as a viable technical approach to augment the market value and competitiveness of the fruit.关键词
茉莉酸甲酯/南果梨/果实品质Key words
methyl jasmonate/Nanguo pear/fruit quality分类
农业科技引用本文复制引用
李馨玥,田鑫,韩吟潇,李帅,孙明瑶,王泽钰,马怀宇..喷施茉莉酸甲酯对南果梨品质的影响[J].沈阳农业大学学报,2025,56(5):36-43,8.基金项目
辽宁省教育厅基本科研项目—青年项目(LJ212510157006) （LJ212510157006）
