果实采收前套袋对湖景蜜露桃果实品质的影响(英文)

被引:13
作者
李斌
贾惠娟
张晓萌
机构
[1] 浙江大学农业与生物技术学院园艺系
关键词
套袋; 挥发性芳香物质; 品质; 桃;
D O I
暂无
中图分类号
S662.1 [桃];
学科分类号
090201 ;
摘要
研究了光对湖景蜜露桃果实成熟的影响。用1层、2层和3层橘黄色果袋(透光率分别为27.0%、13.9%和8.2%)为完全花后(DAFB)50d的果实套袋。分别在111、114、117、120DAFB(果实硬熟期)和124DAFB(果实完熟期)测定乙烯、呼吸速率和果实品质。套1层和3层袋的果实乙烯生成速率高于其他处理。111 和114DAFB 时,未套袋果实呼吸速率最高,其余测定期1 层套袋果实最低。完熟期未套袋果实L 值较高,而色角ho 值较低。果实硬熟期前未套袋果实硬度高于套袋果实,完熟期则是套 3层袋果实较高。完熟期套1 层袋果实TSS 高于其他果实。套1 层袋果实分别在硬熟期和完熟期生成了最高量的内脂类物质和γ- 癸内酯。根据以上结果可以认为完全花后50d左右,用一层橘黄色果袋为果实套袋,可以生产具有丰富桃香气的高品质桃果实。适当的光照强度明显增加了桃果实果香型香气物质,尤其是γ- 癸内酯的合成。
引用
收藏
页码:280 / 286
页数:7
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