不同整枝方式对贝贝南瓜生长、果实特性及产量的影响

为提高贝贝南瓜的种植水平和种植效益，筛选适宜的整枝方式，以不整枝栽培为对照，研究了单蔓、双蔓、三蔓整枝方式对贝贝南瓜的品质及产量的影响。结果表明：采用双蔓整枝、三蔓整枝方式比对照分别提早采收4、3 d，叶片浓绿，长势较好，病虫害发生较少，第1雌花节位低，分别在7.3、7.4节，坐果率分别为97.00%、95.83%，果型大小均匀，平均单果质量分别为0.40、0.38 kg。双蔓整枝方式667 m²产量可达2 502.06 kg，三蔓整枝方式次之，为2 467.5 kg，分别较对照显著提高58.2%、44.1%。生产中建议贝贝南瓜选择双蔓整枝方式为最佳，可促进南瓜早熟，提高坐果率，降低畸形果率，提高产量；三蔓枝可备选。

Effects of Different Pruning Methods on Growth, Fruit Characteristics and Yield of Beibei Pumpkin

Abstract: In order to improve the planting level and benefit of Beibei pumpkin, the effects of single-vine, double-vine and three-vine pruning methods on the quality and yield of Beibei pumpkin were studied to screening suitable pruning methods by taking non-pruning cultivation as control. The results showed that using double-vine pruning and three-vine pruning methods resulted in harvest four days and three days earlier than the control, respectively, with better growth vigor, dense green leaves, less occurrence of diseases and insect pests, uniform fruit size and lower first female flower node positions of 7.3 nodes and 7.4 nodes, respectively, which had the fruit setting rates of 97.00% and 95.83%, respectively, and average single fruit weight of 0.40 kg and 0.38 kg, respectively. The yield of double-vine pruning was 2 502.06 kg per 667 m2, and that of three-vine pruning was 2 467.5 kg per 667 m2, which was significantly increased by 58.2% and 44.1 % compared with the control, respectively. It is suggested that double-vine pruning was the best way for Beibei pumpkin production, which could promote early maturity of pumpkin, improve fruit setting rate, reduce deformed fruit rate and increase yield. Three-vine pruning could also be selected.