Study on the correlation between endogenous hormones and fruit quality during the growth process of Jiuqian plum
To study the changes of four fruit endogenous hormones,including indole-3-acetic acid(IAA),gibberellin(GA3),abscisic acid(ABA),zeatin(ZT)during the growth process of Jiuqian plum,a local famous plum variety in Guizhou,the content of four fruit endogenous hormones was measured by HPLC-MS,the fruit quality(fruit weight,total sugar,total acid,total phenol)during the growth process of Jiuqian plum fruit was tested,and their correlation was analyzed by SPSS.The results showed that during the growth process of Jiuqian plum,the fruit expanded continuously at the early stage of fruit development,and the contents of GA3,IAA and ZT increased continuously,and ABA maintained at a low level.At the middle stage of fruit develop-ment,the content of GA3 remained basically unchanged,while that of ABA,IAA and ZT decreased.At the late stage of fruit development,the contents of GA3,IAA and ZT decreased to the lowest value,and the content of ABA increased to the maximum of 675 ng/mL.During the fruit development of Jiuqian plum,the fruit weight increased continuously,and reached the maximum of 15.400 g at 70 days after flowering.The content of total sugar decreased first and then increased,reaching a maximum of 69.143 mg/g at 70 days after flower shedding.The total content of phenol showed a downward trend,reaching a maximum of 8.442 mg/g at 10 days after flower shedding.The change of acid content was not obvious,which reached the maximum value of 18.179 mmol/100 g at 60 days after flower shedding.During the growth of Jiuqian plum fruit,ABA,IAA,total phenol content and total sugar content were extremely significantly correlated with fruit quality.There was a correlation between total sugar content and fruit endogenous hormone ABA,while fruit endogenous hormone IAA had significant correlation with fruit endogenous hormone ABA.
万方数据
维普
