研究了食用向日葵杂交种SH361在5个产区播期对农艺性状、抗病性、产量及产量构成因子的影响。结果表明，除了内蒙古五原县6月15日之后播种难以成熟外，其它地区随着播期的推迟生育期均缩短，病情指数降低。不同地区较高产量的适宜播期有所差异，吉林省通榆县最佳播期为6月15 — 25日；内蒙古五原县适宜于5月18 — 25日播种，甘肃省武威市适宜于4月25 — 30日播种；黑龙江省甘南县适宜于6月5 — 10日播种；新疆奇台县适宜于5月2 — 9日播种。

The edible sunflower hybrid SH361 are used to study the influence of agronomic trait, disease resistance， yield and yield components under different locations and sowing period . The result shows that the growth period of other regions is shortened, disease index lower with sowing delayed， in addition to Wuyuan county of Inner Mongolia after June 15 is difficult to mature . Different location have different best sowing date. The best sowing date of Tongyu county is June 15 to June 25， Wuyuan county of Inner Mongolia is May 18 to May 25， Wuwei city is April 25 to April 30； Gannan county of Heilongjiang Province is June 5 to June 10 seeding； Qitai county is May 2 to May 9 .

S565.5

国家向日葵现代产业技术体系项目(CARS-16)；国家自然基金项目(31360343)甘肃省农业科学院农业科技创新专项(2013GAA37)