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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (21): 29-34.doi: 10.11924/j.issn.1000-6850.casb17090019

所属专题： 马铃薯

• 农学 农业基础科学 • 上一篇    下一篇

NaCl胁迫处理对采后马铃薯见光绿变的影响

董田田,孟卫芹,王庆国   

  1. 山东农业大学食品科学与工程学院 学实楼1101室,山东农业大学食品科学与工程学院,山东农业大学食品科学与工程学院 学实楼1101室
  • 收稿日期:2017-09-05 修回日期:2018-07-09 接受日期:2017-10-24 出版日期:2018-07-26 发布日期:2018-07-26
  • 通讯作者: 王庆国
  • 基金资助:
    山东省科技发展计划“马铃薯物流保鲜关键技术及新产品研发与应用”(2014GNC113008)；山东省现代农业产业技术体系薯类产业创新团队建设“薯类产后贮藏加工岗位”(SDAIT-10-022-11)；双一流建设专项协同创新团队“园艺作物商品化处理与产业化加工”(SYL2017XTTD04)

Effect of NaCl Stress on Greening of Postharvest Potatoes Under Light

  • Received:2017-09-05 Revised:2018-07-09 Accepted:2017-10-24 Online:2018-07-26 Published:2018-07-26

摘要： 为探究NaCl胁迫处理对采后马铃薯见光绿变及龙葵素生成的影响，本试验先将马铃薯块茎置于20% NaCl溶液中分别浸泡6 h和12 h，后置于光照条件下进行试验。结果表明：与见光对照相比，2个处理均显著提高了马铃薯的综合感官品质，货架期延长1倍；NaCl溶液处理较好地抑制了马铃薯表皮绿变，在同一光照时间，处理马铃薯表皮a*、叶绿素含量显著低于对照组；8天货架期后，2个处理马铃薯龙葵素含量显著低于见光对照组，8天货架期间，对照龙葵素增加了122%，而NaCl处理6 h和12 h的龙葵素含量分别增加了68.86%和91.42%。因此，20% NaCl处理可有效抑制马铃薯表皮绿变和龙葵素的产生，并且20% NaCl处理对马铃薯发芽也有明显的抑制作用。

关键词: 枣麦间作, 枣麦间作, 冬小麦, 光合有效辐射, 遮阴率, 产量

Abstract: To study the effect of NaCl stress treatment on greening and toxic glycoalkaloids generation of postharvst potato under light, potatoes were first dipped in 20% NaCl solution for 6 h and 12 h respectively and then stored under the lighting condition to conduct experiment in this paper. The results showed that, compared with control, two NaCl stress treatments both improved the overall sensory quality of potatoes significantly and the shelf-life was double that of control. NaCl stress treatments inhibited potato peel greening better. Under the same time during illumination, the value of a* and chlorophyll contents of potatoes with NaCl stress treatment were lower than those of control significantly. After 8 days’ shelf-life, the glycoalkaloids content of two treatments were significantly lower than that of those of control. During 8 days’ shelf-life, the glycoalkaloids content of control increased by 122% while the glycoalkaloids content of NaCl treatment for 6 h and 12 h increased by 68.86% and 91.42% respectively. So, 20% NaCl treatment could inhibit potato greening and glycoalkaloids generation effectively. And 20% NaCl treatment also had obvious inhibitory effect on sprout of potatoes.

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