摘要
为探讨不同浓度噻苯隆处理与果实营养成分及有机酸组分含量的相关性,筛选在芒果生产中噻苯隆的最佳施用浓度.以8、16、32、64 mg/L 4个浓度梯度的噻苯隆浸泡芒果小果2次,测定不同浓度噻苯隆处理后果实大小、果形、营养成分和有机酸含量,并探讨噻苯隆浓度与这些指标的相关性.结果表明:不同浓度噻苯隆处理对芒果果实生长具有较明显的作用,随着噻苯隆浓度的升高,贵妃芒果单果重、纵径、横径均呈增加趋势,且均呈极显著正相关;果实可滴定酸含量也随噻苯隆浓度的增加而提高,而可溶性糖、维生素C含量均与噻苯隆浓度呈负相关,其中可溶性糖相关系数为-0.982,达到极显著水平;32 mg/L噻苯隆处理芒果蛋白质含量最高.芒果主要有机酸组分为柠檬酸、莽草酸、苹果酸和奎尼酸,其中柠檬酸含量占比为43.46％,其次为莽草酸,占比18.28％.噻苯隆浓度与芒果柠檬酸、莽草酸含量均呈负相关,其中与柠檬酸含量相关性达极显著水平;与苹果酸、奎尼酸含量均呈正相关,但均未达到显著水平.施用噻苯隆可促进芒果生长,提高单果重和纵横比,对果实内在品质也有一定的影响,其浓度影响程度总体为64 mg/L＞32 mg/L＞16 mg/L＞8 mg/L.
Abstract
To explore the correlation between different concentrations of thidiazuron and the nutritional and organic acid content of fruits,and to screen the optimal application concentration of thidiazuron in mango production.Mango small fruits were soaked twice with four concentration gradients of 8 mg/L,16 mg/L,32 mg/L,and 64 mg/L.The fruit size,shape,nutritional components,and organic acid content were measured after different concentration treatments,and the correlation between the concentration of thidiazuron and these indicators was explored.The results showed that different concentrations of thidiazuron had a significant effect on the growth of mango fruits.With the increase of thidiazuron concentration,the single fruit weight,longitudinal diameter and transverse diameter of'Guifei'mango increased with the increase of thidiazuron,and all of them showed a very significant positive correlation.The titrable acid content of the fruit also increases with the fruit of thidiazuron concentration,and the contents of soluble sugar and vitamin C were negatively correlated with the concentration of thidiazuron,the correlation coefficient of soluble suger was-0.982,which reached a very significant level.The protein content of mango is the highest in the 32 mg/L thiazuron treatment.The main organic acid components of mango are citric acid,shikimic acid,malic acid,and quinic acid,of which citric acid content accounted for 43.46％,followed by shikimic acid,accounting for 18.28％.The concentrations of thiazuron were negatively correlated with the contents of citric acid and shikimic acid in mango,and the correlation with citric acid content reached a very significant level,and the content of malic acid and quinic acid was positively correlated,but neither of them reached a significant level.The application of thidiazuron can promote the growth of mangoes,increase fruit weight and aspect ratio of single fruit,and also have a certain effect on the intrinsic quality of fruits.And its concentration is 64 mg/L＞32 mg/L＞16 mg/L＞8 mg/L.
基金项目
海南省自然科学基金青年基金(321QN0949)
海南省省属科研院所技术创新专项(jscx202006)
海南省省属科研院所技术创新专项(SQKY2022-0012)
海南省芒果产业技术体系建设项目(HNARS-07)
海南省农科院院科技创新专项(2018JZXXM-3)
国家科技期刊平台
NSTL
万方数据