摘要
为深入探讨人工剪萼对莱阳慈梨果实发育的作用及生理机制,以莱阳慈梨为试材,研究了人工剪萼对果实发育膨大、品质及其相关代谢酶活性的影响。结果表明,人工剪萼能够改善慈梨果形,提高风味品质,与宿萼果相比,剪萼果实成熟期可溶性糖含量高,可滴定酸含量低,石细胞团直径小;果实PAL活性在果实发育前期较低,POD和PPO活性在发育中期较低。人工剪萼能提高莱阳慈梨果实外观与内在品质。
Fruits of Pyrus bretschneideri Rehd. cv. Laiyang Cili were used as materials for studying the effects of excising calyx on fruit development and its physiological mechanism. Fruit expanding,internal quality,sclereid and the activities of their related enzymes were investigated. The resuhs showed that the fruit shape could be significantly improved by excising calyx. The content of soluble sugar was higher, the titratable acid content was lower, and the diameter of sclereid was shorter compared with CK. The PAL （phenylalanine ammonia-lyase） activity of the excising calyx fruit was lower than that of CK in previous period of fruit development, and the POD,PPO activity was lower in the mid-stage. Excising calyx was helpful to enhance the comprehensive quality of Pyrus bretschneideri Rehd. cv. Laiyang Cili.
出处
《果树学报》
CAS
CSCD
北大核心
2010年第6期877-881,共5页
Journal of Fruit Science
关键词
莱阳慈梨
人工剪萼
果形
品质
石细胞
酶
Laiyang Cili
Excising calyx
Fruit shape
Quality
Sclereid
Enzyme
