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以秋子梨系统京白梨和白梨系统锦丰梨果实为对照,采用500μl/L外源乙烯和1.0μl/L 1-MCP处理,研究圆黄、黄金等5个砂梨品种在常温条件下的呼吸强度和乙烯释放规律变化。结果表明:新世纪、绿宝石和圆黄梨为非呼吸跃变型果实,采后常温呼吸强度乙烯释放量变化不大,外源乙烯处理不能促进呼吸乙烯,1-MCP处理可抑制呼吸强度,但不减少乙烯释放量;黄冠梨和黄金梨具有一定程度呼吸跃变,外源乙烯处理增加果实呼吸乙烯峰,1-MCP处理不能减少乙烯释放量;圆黄梨呼吸乙烯呈双峰型,黄金梨呈波浪型。整体而言,砂梨采后常温呼吸和乙烯整体变化不大,秋子梨(京白)呈先明显上升后下降趋势,而白梨(锦丰)则逐渐升高。
Five pear cultivars, round yellow and gold, were treated with 500μl / L exogenous ethylene and 1.0μl / L 1-MCP under the conditions of room temperature Respiratory intensity and ethylene release patterns change. The results showed that in the new century, emerald and Yuanhuang pear were non-climacteric fruits, and ethylene release at room temperature after harvest showed little change in ethylene respiration. Exogenous ethylene treatment could not promote the respiration of ethylene, and 1-MCP treatment could inhibit respiration rate, Ethylene did not reduce the ethylene release; Huangguan pear and golden pear with a certain degree of respiratory transition, ethylene treatment increased ethylene respiration peak, 1-MCP treatment can not reduce ethylene emissions; yellow pear respiratory ethylene was bimodal, gold Pears were wave-shaped. Overall, there was not much change in respiration and ethylene in postharvest during the whole year. The autumn pear (Jingbai) showed a clear upward trend and a downward trend, while the white pear (Jinfeng) increased gradually.