会理县欧洲油葵杂交制种播种期和播种方式研究

Study on Seeding Date and Seeding Methods of Hybrid Seed Production of European Oil Sunflower in Huili

以我国北方杂交油葵制种技术为基础,通过08、09两年在会理县进行欧洲油葵杂交制种试验研究,结果表明,制种时间应以春播为宜,采用育苗移栽方式,一期父本比母本提前9天播种,二期父本与母本同播可使父母本花期相遇;田间密度应略有加大,这样有利于提高会理县欧洲油葵杂交制种产量。

Based on the technique for seed production of Northern Oil Sunflower,the experimental hybrid production of European Oil Sunflower hybrid was studied in Huili in 2008 and 2009.The results indicated that sowing time of hybrid seed production of European Oil Sunflower should be at spring sowing stage,and using the seedling transplanting method.In order to make the synchronization of flowering of male parent and female parent of European Oil Sunflower seed production,the sowing date of the first period male parent was 9 days ahead than the female parent,but the second period male parent and female parent was sowed at the same time.By properly increasing the field density,the hybrid seed production of European Oil Sunflower can be efficiently improved.