套袋和植物内源激素对京优葡萄果实发育及成熟的影响

Effects of Bagging and Plant Endogenous Hormones on the Development and Mature of Jingyou Grape Berries

以京优葡萄为试材,研究套袋、NAA和ABA处理对葡萄果实的质量、体积、硬度以及可溶性固形物、可滴定酸、还原糖和花色苷含量的影响,为鲜食葡萄的优质生产提供理论依据。结果表明:套袋可推迟葡萄果实的生长发育。与对照(CK1)相比,在成熟期套袋使葡萄浆果的含酸量增加,可溶性固形物和含糖量降低,果皮着色差。在采收期提前15 d解袋可使还原糖和花色苷的含量增加,从而提高果实的口味和外观品质。NAA处理可延缓葡萄果实成熟,而ABA则相反。NAA可抑制果实变软、有机酸降解、还原糖和花色苷的积累。ABA则促进果实软化、有机酸降解和花色苷积累。

Jingyou grape was used to study the effect of bagging, Naphthaleneacetic aicd （NAA） and abscisic acid （ABA） treatment on weight, volume, deformability, soluble solid, titratable acid, reducing sugar and anthocyanin content, in order to provide theory for high quality production of table grape. The results showed that bagging retarded growth and development of grape berries. Compared with the control（CK1）, bagging could increase the content of titratable acidity, decreased the content of soluble solid and reducing sugar of grape berries during the mature stage, and made bad pigmentation in the berry skins. Removing bag could enhance taste and external quality of fruit before harf a month of harvest time. NAA treatment retarded fruit maturation, and ABA showed the opposite results. NAA suppressed softness, organic acid degradation, and accumulation of reducing sugar and anthocyanins, while ABA enhanced softness, organic acid degradation and accumulation of anthocyanins.