油用向日葵杂交种陇葵杂5号是以y07m4A为不育系、y07m4B为保持系、y08-431R为恢复系，选育而成的三系杂交种。在2014 — 2015年的甘肃省油用向日葵2 a 10点(次)区域试验中，陇葵杂5号9点(次)增产，1点(次)减产，平均折合产量4 185.15 kg/hm2，较对照品种陇葵杂2号增产7.5%，生长势强、整齐度好、稳产性好、丰产性突出，籽实脂肪酸含量471.9 g/kg，粗蛋白含量19.02 g/kg，品质优良。适宜在平凉、白银、张掖、武威等市及同类地区种植。

Longkuiza 5 is an oil sunflower hybrid， bred by three-line hybridization with y07m4A， y07m4B， y08-431R as the three parents. In 2014 — 2015， the average yield of Longkuiza 5 in 2 a 10 sites (times) was 4 185.15 kg/hm2， 7.5% higher than that of control cultivar Longkuiza 2 in Regional Test of Gansu Province， 9 points increased and 1 point reduced. This cultivar has a strong growth potential， with good uniformity， stability high yield and quality. The fatty acid content was 47.19%， protein content was 19.02%. It is suitable to be grown in Pingliang， Baiyin， Zhangye， Wuwei and the similar area.

S565.5

国家自然科学基金地区基金(31360343)；国家向日葵现代产业技术体系(CARS-16)；特色油料产业技术体系建设项目(CARS-14-2-22)；甘肃特色作物产业技术体系项目；甘肃省科技支撑计划项目(1011NKCA080)；甘肃省农业科学院科研条件建设及成果转化项目(2016GAAS35)部分内容。