采收期对圆黄梨果实贮藏品质和采后生理的影响

不同采收期圆黄梨果实在常温（20±1）℃和冷藏（0±0.5）℃条件下的试验结果表明：圆黄梨有一定程度的呼吸跃变,乙烯释放量较小;在盛花期后128～142 d内,采收越早,贮藏期间果心褐变程度越轻,乙醇含量越低,但SSC含量相对偏低,果实风味稍差;盛花期后135 d采收的果实贮藏期间能保持较高的硬度和TA含量,风味良好,果柄新鲜程度较高。北京地区贮藏圆黄梨果实最佳采收期为盛花期后135 d。

Effects of Different Harvest Date on Quality and Physiology of Wonhuwang Pear during Storage

Under ambient temperature （20±1）℃ and cold storage（0±0.5）℃ conditions, the different harvest period of wonhuwang pear were investigated. The results showed that, wonhuwang pear had some respiration climacteric period and small ethylene production. Within 128 d to 142 d after florescence, harvested earlier, the fruit had more light degree of core browning and lower during the storage period ethanol content, but fruit flavor was worse and SSC was relatively lower during the storage period. When the fruit was harvested on 135 days after florescence, the fruit could keep higher firmness and TA content, maintain better fruit flavor and fruit handle freshness during storage period. In conclusion, the cold storage of wonhuwang pear should be harvested on 135 days after florescence in Beijing.