【摘要】 黄土高原苹果园面临着冬季风沙大、地表裸露、覆盖作物少等问题，在苹果园种植冬绿肥油菜可以达到绿色覆盖、改善土壤条件、提高果实品质和产量的目的，但目前果园冬绿肥油菜资源短缺，筛选耐寒型冬绿肥油菜新品种十分必要，因此本研究于2020-2021年、2023-2024年度开展了抗寒性冬绿肥油菜新品种(系)的适应性筛选试验。结果表明：参试品种矮油2号的有效分枝数、单株有效角果数明显优于其他参试品种，产量、生育期、抗寒性等综合性状亦表现较好。综合产量、经济性状及越冬性情况来看矮油2号可作为冬绿肥油菜品种在黄土高原果区大力示范推广。更多还原

【Abstract】 The Loess Plateau apple orchards face problems such as strong winter winds, exposed soil, and insufficient ground cover crops. Planting winter green manure rapeseed in orchards can provide green cover, improve soil conditions, and enhance fruit quality and yield. However, there is currently a shortage of suitable winter green manure rapeseed cultivars, making it important to identify new cold-resistant varieties.This study conducted adaptability screening trials for new cold-resistant winter green manure rapeseed cultivars(lines) during the 2020–2021 and 2023–2024 growing seasons. The Results indicated that ’Aiyou 2’ had significantly more effective branches and siliques per plant than the other cultivars, and also exhibited superior yield, growth duration, and cold resistance. Considering yield, economic traits, and overwintering performance, ’Aiyou 2’ is suitable for large-scale demonstration and extension as a winter green manure rapeseed cultivar in orchard regions of the Loess Plateau.更多还原