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首页> 外文会议>MOST-USDA Workshop on Agricultural Products Processing and Food Safety; 20050921-24; Beijing(CN) >Evaluation of Biocontrol Efficiency of Antagonistic Yeasts Applied in the Field against Postharvest Diseases in Sweet Cherry
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Evaluation of Biocontrol Efficiency of Antagonistic Yeasts Applied in the Field against Postharvest Diseases in Sweet Cherry

机译：拮抗酵母在甜樱桃采后病害防治中的生物防治效果评价

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摘要

The yeasts Trichosporon pullulans, Cryptococcus laurentii and Rhodotorula glutinis were sprayed at concentration of 1 x 10~8 CFU/ml onto sweet cherry fruit in two orchards prior to harvest. Survival of these species on fruit surfaces under field conditions was investigated. Also, their biocontrol efficacy against postharvest decay of cherry fruit stored under various conditions was assessed. All three yeasts colonized the surface of sweet cherry fruit. However, only C. laurentii and R. glutinis maintained populations at high and stable levels throughout the 4-day experiment period. C. laurentii was the most effective and promising of the three antagonists. It had strong survival ability on fruit surfaces under field condition and adaptability to postharvest storage conditions of low temperature, low-O_2 and high-CO_2 concentrations.
机译：在收获前，将酵母Trichosporon pullulans，劳氏隐球菌和Rhodotorula glutinis酵母以1 x 10〜8 CFU / ml的浓度喷洒到两个果园的甜樱桃果实上。研究了这些物种在田间条件下在水果表面上的存活情况。此外，评估了它们对在各种条件下储存的樱桃果实采后腐烂的生物防治功效。所有这三种酵母菌都定植在甜樱桃果实的表面。但是，在整个4天的实验期内，只有劳伦梭菌和谷氨酸棒杆菌将种群维持在高水平和稳定的水平。劳伦梭菌是三种拮抗剂中最有效和最有前途的。它在田间条件下对水果表面具有很强的存活能力，并且对低温，低O_2和高CO_2浓度的收获后储存条件具有适应性。

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