为有效解决小麦条锈病西北越夏菌源区防控难题，选育适配旱地栽培的持久抗锈冬小麦新品种，自 2014年起甘肃省农业科学院小麦研究所以自育品种兰天 26号为母本、兰天 34号为父本，采用系谱法选育，通过条锈病抗病表型鉴定与分子标记辅助选择，选育出了抗锈基因聚合新品种兰天 56号。在 2020 — 2022年甘肃省陇南片冬小麦(山区组)区域试验中，对照品种兰天 19号平均折合产量为 6 069.32 kg/ hm2，兰天 56号平均折合产量为 6 511.08 kg/ hm2，较对照品种兰天 19号增产 7.27%。在 2022 — 2023年甘肃省陇南片冬小麦(山区组)生产试验中，对照品种兰天 19号平均折合产量为 5 280.60 kg/hm2，兰天 56号平均折合产量为 5 470.80 kg/hm2，较对照品种兰天 19号增产 3.60%。兰天 56号长势健壮，分蘖力强、株型紧凑、无芒、白壳、籽粒角质；穗粒数 40.6粒，千粒重 46.5 g；籽粒含粗蛋白(干基) 133.6 g/kg、湿面筋( 14%水分基) 298.0 g/kg，容重 800 g/L，吸水量 627 mL/kg，稳定时间 1.3 min，最大拉升阻力 121 E.U。经田间抗性鉴定，兰天 56号对条锈病免疫，聚合了成株抗性基因 Yr30以及全生育期抗条锈基因 Yr5、Yr9、Yr17、YrZH84。适宜在甘肃省陇南山旱地冬麦种植区推广种植。

To effectively address the prevention and control challenges in the oversummering inoculum source areas of wheatstripe rust in Northwest China and to develop new durable rust-resistant winter wheat varieties suitable for dryland cultivation, theWheat Research Institute of Gansu Academy of Agricultural Sciences initiated a breeding program in 2014. Using the self-bred vari.ety Lantian 26 as the female parent and Lantian 34 as the male parent, pedigree breeding combined with phenotypic identification ofstripe rust resistance and marker-assisted selection was applied to develop Lantian 56, a new wheat variety pyramided with multiplerust resistance genes. In the regional experiment for winter wheat (mountain group) in the Longnan sub-region of Gansu Province from2020 to 2022, Lantian 56 achieved an average equivalent yield of 6 511.08 kg/ha, whereas the yield in control variety Lantian 19 was6 069.32 kg/ha, representing a 7.27% yield increase compared with the control variety Lantian 19. During the production experiementfor winter wheat (mountain group) in the same sub-region from 2022 to 2023, its average equivalent yield reached 5 470.80 kg/ha,compared with 5 280.60 kg/ha from the control variety Lantian 19, representing a yield increase of 3.60% over the control variety Lan.tian 19. Lantian 56 exhibits vigorous growth, strong tillering capacity, compact plant architecture and moderate plant height. It possess.es awnless ears with white glumes and vitreous kernels. The variety bears 40.6 grains per spike with a 1000-kernel weight of 46.5 g.Its grain quality parameters are as follows: crude protein (dry basis) 133.6 g/kg, wet gluten (14% moisture basis) 298.0 g/kg, test weight800 g/L, dough water absorption 627 mL/kg, dough stability time 1.3 min, and maximum resistance to extension 121 E.U. Field resis.tance evaluations confirmed that Lantian 56 is immune to wheat stripe rust. It contains the adult resistance gene Yr30 as well as the all-stage resistance genes Yr5, Yr9, Yr17 and YrZH84. Lantian 56 is suitable for promotion and cultivation in the dryland winter wheatplanting areas of the mountainous Longnan region of Gansu Province.

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国家小麦产业技术体系( CARS-03)；国家重点研发计划子课题( 2024YFD2300204-04)；甘肃省重大专项(25ZDNA001)；甘肃省农业科学院创新专项( 2025GAAS19)。作者简介:马仲红( 1996 —)，女，甘肃临夏人，研究实习员，主要从事小麦育种工作。 Email: mzh18409313067@ 163.com。通信作者:张礼军( 1978 —)，男，甘肃文县人，研究员，主要从事抗锈小麦育种与栽培工作。 Email: ljzhang403@ 163.com。