功能性小麦品种可调节人体有益代谢或满足特定人群的需求。为弥补河西灌区营养性、功能性等特殊用途小麦品种的空缺，以自育品系4E-ms核不育浅蓝粒保持系3046B-1为母本、自育品系陇春432为父本，通过南繁北育，采用系谱法选育出功能性紫粒春小麦新品种陇春46号。2022年参加甘肃省春小麦西片水地组区域试验，陇春46号平均折合产量为7 424.10 kg/hm2，较对照品种宁春4号增产4.17%；2023年参加甘肃省春小麦西片水地组生产试验，陇春46号平均折合产量7 660.96 kg/hm2，较对照品种宁春4号增产1.97%。其株型紧凑、株高适中、长芒、白壳、籽粒角质。穗粒数42粒，千粒重43.9 g，中感条锈病，中感白粉病，品质中筋。籽粒含粗蛋白146.7 g/kg、湿面筋325.0 g/kg，容重810 g/L，面团吸水量615 mL/kg，稳定时间1.0 min，弱化度209 F.U，富含多种维生素、微量元素及氨基酸。适宜在河西地区及类似生态区种植。

Functional wheat varieties can regulate beneficial metabolism and fill the needs of specific population. A new purple grain wheat variety Longchun 46 was bred to fill the vacancy of wheat varieties for special purposes such as nutrition and functionality in Hexi irrigation region. Through artificial selection in different ecological places, this variety was selected from the cross of 4E-ms genic sterile light blue grain maintainer line 3046B-1 as female parent and Longchun 432 as male parent. In 2022, it participated in the spring wheat regional experiment in the west area of Gansu Province, with an average yield of 7 424.10 kg/ha, an increase of 4.17% over the control variety Ningchun 4. In 2023, it participated in the spring wheat production experiment in the west area of Gansu Province, with an average yield of 7 660.96 kg/ha, an increase of 1.97% over the control variety Ningchun 4. Longchun 46 exhibits characteristics such as compact plant type, moderate height, long awn, white husk, and horny grains. The number of granis per spike is 42 and 1000-grain weight is 43.9 g. It showes moderately susceptible to powdery mildew and rust, and its quality reached medium-strong gluten. The grain contains crude protein of 146.7 g/kg, wet gluten of 325.0 g/kg, bulk density of 810 g/L, dough water absorption of 615 mL/kg, dough stability time 1.0 min, and weakening degree of 209 F.U, and is rich in various vitamins, trace elements, and amino acids. It is suitable for planting in Hexi area of Gansu Province and similar ecological areas.

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国家自然科学基金地区基金(32360446、32360505)；国家重点研发计划(2022YFD1200903)；甘肃省技术创新引导计划-东西部科技协作专项(24CXNA024、25CXNA019)；甘肃省重大科技专项子课题(25ZDNA001)；甘肃省农业科学院院列区域协同创新项目(2025GAAS03)；甘肃省农业科学院现代生物育种项目(2025GAAS11)；甘肃省陇原青年英才项目。