温水浸泡和种皮处理对藏杏种子萌发的影响
Effects of Warm Water Immersion and Seed Coat Treatment on the Germination of Armeniaca holosericea Seeds
为探究不同处理方式对藏杏(Armeniaca holosericea (Batal.) Kost.)种子萌发特性的影响,本研究运用沙藏培养方法,着重分析种皮处理以及温水浸泡对种子发芽指标和发霉率的作用。试验采用双因素完全随机设计,设置处理组合(种皮处理×温水浸泡时间,时间分别为0、5、10、15、20 d),测定发芽势(第7 d)、发芽率(第20 d)以及发霉率。结果表明,两个因素的交互效应不显著(P > 0.05),种皮处理可显著提升种子发芽率,其中温水浸泡5 d的处理效果最佳,发芽率高达92.22%。综合试验数据可知,采用5 d温水浸泡后去壳的方式能够显著提高藏杏种子的发芽率,降低发霉率,为高海拔地区藏杏育苗提供一种简易、低成本的物理破眠技术。
In order to investigate the effects of different treatments on the germination of Armeniaca holosericea seeds, this study used sand culture, focusing on analysing the effects of seed coat treatment and warm water immersion on seed germination indexes and germination rate.The experiment was conducted in a two-factor completely randomized design with treatment combinations (seed coat treatment × warm water immersion time: 0, 5, 10, 15, 20 d), and germination potential (7th day), germination rate (20th day) and mould rate were determined.The results showed that the interaction effect of the two factors was not significant (P>0.05), the seed coat treatment significantly increased the seed germination rate, and the best effect was achieved by soaking in warm water for 5 d, with the germination rate reaching 92.22%. Comprehensive experimental data show that 5 d of warm water soaking and then shelling can not only significantly improve the germination rate of Armeniaca holosericea seeds but also reduce the mould rate, and provide a simple and low-cost physical dormancy-breaking technology for Armeniaca holosericea seedling nursery in high-altitude areas.
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