热带作物学报2009，Vol.30Issue(10)：1462-1467,6.
钙处理对红江橙采后生理的影响
Effect of Postharvest Calcium Treatments on Physiological Changes of Hongjiang Orange Fruit
摘要
Abstract
Fruit of 'Hongjiang' orange (Citrus sinensis Osbeck 'Hongjiang') were treated with CaCl_2 solution at various concentrations, packed with polyethylene bags and stored at (25±1)℃ to observe their physiological changes. The results showed that the calcium treatment at low concentration(4.0%CaCl_2) did not had evident effect on postharvest physiological changes of the fruit, that the calcium treatment at higher concentration 6.0% and 8.0% stimulated significantly the postharvest physiological changes of the fruit, leading to increased number of rotten fruit, and that the calcium treatment at adequate concentration (4.0% CaCl_2) effectively reduced the respiration rate and ethylene releasing rate, efficiently inhibited peroxidase (POD) activity, decreased the downtrend of catalase (CAT) activity, remarkably inhibited malondialdehyde(MDA) content and the increasing trend of electrical conductivity, relieved the membrane lipid peroxidation, reduced the activity of polygalaeturonase (PG) in fruit and the softening speed of the fruit. The fruit rotting rates was only 3.1% at day 56 after treatment, 39.6% lower than the control.关键词
红江橙/CaCl_2处理/生理变化Key words
'Hongjiang' orange/ CaCl_2 treatment/ physiological change.分类
农业科技引用本文复制引用
夏杏洲,吴雪彪,梁振全,谌素华,王维民..钙处理对红江橙采后生理的影响[J].热带作物学报,2009,30(10):1462-1467,6.基金项目
广东海洋大学自然科学基金项目(No.0512318)资助. （No.0512318）
