通过向日葵种质资源筛选及优良新品种选育，加强对盐碱地利用，保证粮油供给安全具有重要的现实意义。以选育高产、优质、抗逆的向日葵品种为目标，用细胞质雄性不育系XW009A为母本、XW009B为保持系，XW09-1R为恢复系，选育出三系杂交种兴沃9号。2015 — 2016年参加多点区域试验，2 a平均折合产量为4 850.94 kg/hm2，较对照品种LD5009增产21.64%。2016 — 2017年参加多点生产试验，2 a 8点(次)平均折合产量4 519.54 kg/hm2，较对照品种LD5009 增产10.50%。该品种生育期122 d，株高223 cm；结实率87.80%，出仁率46.90%；籽粒排列紧密。籽粒蛋白质含量122.0 g/kg，粗脂肪含量285.41 g/kg，含油率30%。适宜在甘肃省酒泉市、武威市、白银市和内蒙古巴彦淖尔市及其他类似生态区种植。

The screening of sunflower germplasm resources and the breeding of superior new varieties are of significant practical importance for enhancing the utilization of saline-alkali land and ensuring the safety of grain and oil supply. Aiming to breed high-yield, high-quality, and stress-resistant sunflower varieties, the three-system hybrid variety Xingwo 9 was developed using the cytoplasmic male sterile line XW009A as the female parent, XW009B as keep system, and XW09-1R as the recovery system. From 2015 to 2016, it participated in multi-point regional experiment, which showed an average yield of 4 850.94 kg/ha in 2a, an increase of 21.64% compared to that of the control variety LD5009. From 2016 to 2017, it participated in production experiment, achieving an average yield of 4 519.54 kg/ha from 8 sites (points) in 2a, which was 10.50% higher than that of the control variety LD5009. This variety has a growth period of 122 days and an average plant height of 223 cm. The seed setting rate is 87.80%, and the kernel yield rate is 46.90%, with seeds arranged closely. The protein content of the seeds is 122.0 g/kg, the ether extract content is 285.41 g/kg, and the oil content is 30%. It is suitable for planting in Jiuquan City, Wuwei City, Baiyin City from Gansu Province, Bayannur City from Inner Mongolia, and other similar ecological regions.

S565.5

甘肃省农业科学院重点研发计划项目(2022GAAS20)；国家特色油料产业技术体系向日葵兰州综合试验站(CARS-14-2-22)。