植物激素和气体组分对芹菜的贮效及其机理研究

Effects of the Plant Hormones and Gas Components on Celery Storage and Its Mechanism

本文以芹菜为试材，研究植物激素和气体组分对芹菜的贮藏效应。结果表明：５０ｍｇ／ＬＧＡ和３０～５％＿２，５０～７０ＣＯ２组合对芹菜贮藏效果最好，即在芹菜采收前１ｄ用５０ｍｇ／ＬＧＡ喷施整株，收割后经整理贮于Ｇ－５和Ｇ—Ｍ＿ｎ型塑料袋或贮于聚乙烯塑料薄膜袋但将气体组分控制在３％～５％Ｏ２，５％～７％ＣＯ２，贮藏１１０ｄ后商品率可达９２．５％．同时，探讨了该方法产生良好贮效的生理机制，发现结合气调喷洒ＧＡ可降低氧化酶系（过氧化物酶）提高保护酶系（过氧化氢酶）活性，从而减少活性氧危害，起到延长芹菜贮期和保持品质的作用。

The research results showed that the conditions that celery plants were sprayed on with50 mg/LGA a day bofore harvest and were put in G-5 or G-Mn model plastic bag orcommon plastic bag in which O2 was controlled in 3% ￣ 5%O2 and CO2 in 5% ￣ 7% resulted in a good storage effect e.g. commercial rate of celery was 92.5% after 110 days storage.Meanwhile, the mechanism of the preservation effects by using above mentioned method was dis cussed On comparision with control, the oxidase activities(peroxidase) of preped plants were decreased and the prote ctive enzyme(catalase) activities were incriased, thus the damage of active oxygen was reduced. Therefore, the storage Period of celery was prolonged and the celeryquality was preserved.