BACKGROUNDSeed dormancy is a critical evolutionary trait that enhances the persistence of plant populations under both natural and managed conditions. It is influenced by genetic and environmental factors, with crop management practices like tillage and herbicide use reportedly selecting for increased seed dormancy in weeds. This study aimed to compare the success of seed dormancy breaking methods between weed populations collected from intensively managed crop fields and unmanaged ruderal locations.RESULTSWeeds from intensively managed fields, including Hordeum glaucum, H. leporinum, Avena fatua, Bromus diandrus, and B. rigidus exhibited significantly higher seed dormancy and didn't respond largely to seed dormancy breaking methods compared to those from unmanaged areas. Dormancy‐breaking treatments such as sandpaper scarification were effective in barley grass, while endosperm excision followed by cold stratification alleviated dormancy in brome grass and wild oat. Dark incubation consistently improved germination across all species, enhancing the efficacy of treatments like cold stratification, sandpaper scarification, and gibberellic acid (GA3).CONCLUSIONWeeds in managed fields develop greater seed dormancy, likely as an adaptive response to agricultural practices. Techniques such as tillage, which incorporate seeds deeper into the soil, may help mitigate seed dormancy traits by reducing light exposure. These findings highlight the importance of dormancy management in controlling persistent weed populations. © 2024 Society of Chemical Industry.

中文翻译：

---

集约化种植影响了澳大利亚收集的 Hordeum、Avena 和 Bromus sp 中种子休眠打破方法的成功。


种子休眠是一种关键的进化特征，可在自然和管理条件下增强植物种群的持久性。它受遗传和环境因素的影响，据报道，耕作和除草剂使用等作物管理做法会选择增加杂草中的种子休眠。本研究旨在比较从集约化管理的农田和未管理的杂草地点收集的杂草种群之间种子休眠打破方法的成功率。