中文摘要：

以8年生冬枣为试材,研究不同时期环剥与环割对冬枣生长结果及果实品质的影响,旨在为改进枣树的栽培技术和提高枣树的产量与枣果质量提供理论依据。结果表明：主干环剥及主枝环割适宜在盛花期即开花30%~50%时进行,可明显提高冬枣果实及花序坐果率,提高产量;环剥与环割后果实的维生素C、总酸、总糖和可溶性固形物含量提高;环剥处理后的枣果总糖含量较环割处理高,硬度较环割处理低,果实品质更好;盛花后期即开花60%~80%进行环剥与环割,可提高枣果纵横径及单果质量,促使果实膨大,所以在栽培中可结合盛花期进行环剥、环割后,在盛花后期根据树势情况进行2次环剥、环割处理;木质化枣吊的坐果率、可溶性固形物含量、平均纵横径和单果质量均高于脱落性枣吊,说明在生产中应注意培养木质化枣吊,这是提升枣果产量及品质的有效方法。

英文摘要：

With 8-year-old Dongzao （Ziziphus jujuba） as test materials, effects of girdling and ring cutting treatments at different periods on growth, fruiting and fruit quality were studied, in order to provide some theoretical basis for improving cultivation techniques of jujube and enhancing yield and fruit quality. The results showed that the appropriate time of trunk girdling and ring cutting on branches was at blooming period, namely blooming from 30% to 50%, which could significantly improve the fruit setting rate and inflorescence fruit setting rate of Dongzao, and could increase yield. The contents of vitamin C, total acid, total sugar and soluble solids in fruits were increased after girdling and ring cutting. The total sugar content in fruits was more higher, the hardness was lower, and the fruit quality was better in the girdling treatments than those in the ring cutting treatments. At post-blooming period of blooming 60%-80%, the girdling and ring cutting treatments could improve the longitudinal and traverse diameters of fruits and single fruit mass, and could promote fruit enlargement, so in cultivation, girdling or ring cutting could be carried out at full-blooming period, after that, at the post-blooming period, tree could be taken a second handling of girdling or ring cutting according to potential situation of growth, fruit setting rate, soluble solids content, average longitudinal and traverse diameters and single fruit mass of lignified bearing shoots were higher than those of the deciduous bearing shoots, so lignified bearing shoots should be paid more attention in production, and it is an effective way to enhance yield and quality of jujube fruits.