摘要
为研究采前植物生长调节剂喷施处理对淮安红椒采后室温贮藏生理与保鲜品质的影响,于淮安红椒转红期,分别用不同分子量壳聚糖、海带多糖(HDG)、赤霉素(GAs)和水杨酸(SA)进行喷施处理,处理14天后采收红椒,以失重率、腐烂指数、维生素C、丙二醛(MDA)含量、多酚氧化酶(PPO)和过氧化物酶(POD)活性为指标,研究采前植物生长调节剂处理对采后红椒室温贮藏期品质的影响。结果表明:低分子量壳聚糖(LWG)处理能显著降低采后红椒室温贮藏过程中的失重率,LWG、HDG和SA处理能显著降低腐烂指数和MDA含量,显著提高维生素C含量,而LWG和SA处理显著提高红椒贮藏期的POD和PPO活性,延缓衰老。可见,采前0.5%LWG和0.8 mmol/L SA处理有利于采后红椒室温贮藏,具有一定的推广价值。
To study the effect of different plant growth regulators’ preharvest treatment on Huai’an red pepper storage quality under room temperature, the rate of weight loss, decay index, vitamin C content,malondialdehyde(MDA) content, polyphenol oxidase(PPO) and peroxidase(POD) activity were determined after 14 days treated with chitosan with different molecular weights, kelp polysaccharide(HDG), gibberellic acids(GAs) and salicylic acid(SA) at the period of red pepper turning red. The results showed that the treatment of low molecular weight chitosan(LWG) significantly delayed the weight loss. The treatment of LWG,HDG and SA significantly reduced the decay index and MDA content, and significantly improved vitamin C content, while LWG and SA significantly improved the activities of POD and PPO, and retarded senescence process and quality loss. The results suggest that the preharvest treatment with 0.5% LWG and 0.8 mmol/L SA could be a conducive technique to maintain Huai’an red pepper storage quality under room temperature.
作者
仲秀娟
吴传万
顾大路
杨文飞
孙玉东
罗德旭
梁双林
杜小凤
Zhong Xiujuan;Wu Chuanwan;Gu Dalu;Yang Wenfei;Sun Yudong;Luo Dexu;Liang Shuanglin;Du Xiaofeng(Institute of Agricultural Science of Huaiyin in Xuhuai District of Jiangsu Province,Huai’an Jiangsu 223001;Jiangsu Shuanglin Marine Biological Pharmaceutical Co.,Ltd,Qidong Jiangsu 226200)
出处
《中国农学通报》
2020年第7期122-127,共6页
Chinese Agricultural Science Bulletin
基金
江苏省农业科技自主创新基金“淮安红椒保鲜技术研究”[CX(16)1021-6]
淮安市农科院院长科研基金“设施蔬菜示范基地建设”(HNY201610).
关键词
淮安红椒
植物生长调节剂
采后生理
室温贮藏
品质
Huai’an red pepper
plant growth regulators
postharvest physiology
storage under room temperature
quality
