陇中6号为2007年由定西市农业科学研究院和甘肃省农业科学院生物技术研究所利用外源DNA导入技术，以9767-1-1-3为受体，外源米高粱DNA为供体，通过花粉管通道法进行回交，采用多代集团混合选择技术选育成的高产稳产广适旱地冬小麦新品种。在2016 — 2018年进行的甘肃省陇中片冬小麦区域试验中，2 a平均折合产量4 468.50 kg/hm2，比对照品种陇中1号增产12.20%；在2018 — 2019年度进行的甘肃省陇中片冬小麦生产试验中，平均折合产量4 666.50 kg/hm2，比对照品种陇中1号增产12.10%。该品种平均株高74.6 cm，穗长6.0 cm，穗粒数42粒，穗粒重1.85 g，千粒重37.6 g。籽粒含蛋白质(干基)124.0 g/kg、湿面筋(14%水分基)249.0 g/kg、赖氨酸(干基)3.4 g/kg，沉降值(14%水分基)30 mL，容重808.0g/L。抗寒性强，抗旱性中等，对条锈病免疫。适宜在甘肃省中部旱地冬麦种植区及同类生态区种植。

A new winter wheat variety Longzhong 4 with high and stable yield and widely suitable， was bred by Dingxi Academy of Agricultural Sciences and Institute of Biotechnology Research， Gansu Academy of Agricultural Sciences in 2007， using exogenous DNA introduction technology， with 9767-1-1-3 as the receptor and exogenous rice sorghum DNA as the donor， through pollen tube backcross method and Multi-generation group mixed selection technology. From 2016 to 2018， the average yield of 2 a was 4 468.50 kg/hm2， 12.20% higher than that of the control variety Longzhong 1 in the regional experiment of Longzhong winter wheat in Gansu province. In the winter wheat production experiment of Longzhong in Gansu province from 2018 to 2019， the average yield was 4 666.50 kg/hm2， 12.10% higher than the control Longzhong 1. The average plant height was 74.6 cm， spike length was 6.0 cm， grain number per spike was 42， grain weight per spike was 1.85 g， 1000-grain weight was 37.6 g. The grain contained protein was 124.0 g/kg (dry base)， wet gluten was 249.0 g/kg (14% water base)， lysine was 3.4 g/kg (dry base)， 30 mL settlement value(14% water base) and bulk density was 808.0 g/L. The variety has strong cold resistance， moderate drought resistance and is immune to stripe rust. It is suitable for planting winter wheat in dry land and similar ecological areas in central Gansu province.

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甘肃省科技重点研发计划项目(20YF3WJ021)； 甘肃省中部地区主要农作物种质资源库(18JR2TJ001)。