Effects of exogenous 2,4-Epibrassinolide and melatonin on fruit quality and peel morphology of cherry tomato
[Objective]To study the effects of different concentrations of EBR and MT treatments on the quality of cherry tomato fruits during growth and development,in order to provide some theoretical or technical support for improving the quality of cherry tomato fruits.[Methods]Cherry tomato fruits were sprayed with three concentrations of EBR and MT at the expansion,green ripening,color change and red ripening stages to determine the fruit quality and cell structure.[Results]Cumulative spraying of plant growth regulators under all six treatments was found to produce varying degrees of effect at the time of fruit entry into the red ripening stage,and the mass of single fruit was significantly higher than the control by 29.96％under the MT treatment of 100 μmol/L;Fruit hardness is enhanced by 17.21％under EBR treatment of 0.1 mg/L compared to the control;EBR at 0.1 mg/L and MT at 100 μmol/L were the highest enhancements in sugar-acid ratio,solu-ble protein,and vitamin C compared to control(CK)for both plant growth regulators,with 51.14％and 58.81％,37.96％and 39.40％,37.96％and 39.40％,49.05％and 27％,respectively;EBR at 0.05 mg/L and MT at 100 p.mol/L were the highest elevations of soluble solids among the two plant growth regulators with 24.01％and 44.10％,respectively;The outer epidermis increased under all three EBR treatments compared to CK;thick horn tissue increased by 10.06％under 0.1 mg/L EBR treatment compared to the control.[Conclusion]It was found that cherry tomatoes under 0.1 mg/L EBR treatment had better storage and trans-portation resistance,and cherry tomatoes under 100 μmol/L MT treatment had better intrinsic quality.
万方数据
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