SUN Fei,PAN Xi,HU Yicheng,et al.Effects of Hormone Treatments on Main Nutritional Quality Indexes of Postharvest Spinach[J].Northern Horticulture,2023,(05):85-92.[doi:10.11937/bfyy.20222338]
激素对菠菜采后主要营养品质指标的影响
- Title:
- Effects of Hormone Treatments on Main Nutritional Quality Indexes of Postharvest Spinach
- Keywords:
- spinach; hormone; postharvest treatment; quality
- 文献标志码:
- A
- 摘要:
- 以2种菠菜自交系为试材，以清水为对照，设置5个处理组（200 μmol?L-1 ABA溶液、50 μmol?L-1 去甲二氢愈创木酸（NDGA）溶液、100 μmol?L-1 褪黑素（MT）、乙烯利溶液（ETH）以及1-甲基环丙烯（1-MCP）），研究了外源植物激素对采后菠菜主要品质指标的影响，以期为菠菜采后保鲜研究及应用奠定基础。结果表明：采后菠菜叶片叶绿素、维生素C、可溶性糖含量呈不同程度下降趋势，草酸含量无显著变化，叶酸含量和硝酸盐含量呈不同程度上升趋势，可溶性蛋白质含量在不同材料中变化趋势不同；激素对采后菠菜不同营养品质指标的影响不同，ABA和ETH处理显著促进了2种菠菜材料叶绿素及维生素C含量的下降；NDGA处理对采后菠菜叶绿素、可溶性糖、维生素C含量的降解抑制作用最突出；1-MCP处理下采后菠菜叶绿素、可溶性蛋白质、硝酸盐含量的显著提高；MT对延缓菠菜退绿作用不显著，但能提高可溶性糖含量。
- Abstract:
- Taking two spinach inbred lines as test materials,six treatments (water,200 μmol?L-1 ABA solution,50 μmol?L-1 demethyldihydroguaiacic acid (NDGA) solution,100 μmol?L-1 melatonin (MT) solution,ethephon solution (ETH),and 1-methylcyclopropylene (1-MCP) fumigation) were set up.The effects of exogenous plant hormones on the main nutritional quality indexes of spinach after postharvest storage were studied,in order to provide reference for further research and application in the post-harvest preservation of spinach.The results showed that the contents of chlorophyll,vitamin C,and soluble sugar were generally decreased in postharvest spinach,while the oxalic acid content did not change significantly in either material.Differently,the contents of folate and nitrate generally increased in two materials,while the soluble protein content changed differently in different materials.Nutritional quality indexes reacted differently to different hormone treatments.The ABA and ETH significantly decreased the contents of chlorophyll and vitamin C in postharvest spinach.Whereas the NDGA alleviated the decrease in the contents of chlorophyll,soluble sugar,and vitamin C in postharvest spinach.Similarly,the 1-MCP treatment significantly increased the contents of chlorophyll,soluble protein,and nitrate compared with the control group.The melatonin treatment improved the soluble sugar content but had no effect on degreening after harvest.
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备注/Memo
第一作者简介：孙飞（1996-），男，硕士研究生，研究方向为蔬菜营养生理与品质改良。E-mail：1762321467@qq.com.责任作者：王小丽（1980-），女，博士，副教授，现主要从事蔬菜营养生理与品质改良等研究工作。E-mail：wxl2006by@163.com.基金项目：上海市科技兴农资助项目（2019-02-08-00-02-F01105）。收稿日期：2022-06-07