博优752杂种优势强、秧龄弹性大,米质优,株叶形态好,适用性广,于1999年6月通过江西省农作物品种审定委员会审定,已成为江西、广西陆川、海南、广东等地的主栽组合,现将其主要制种技术介绍如下: 1 穗粒结构博A千粒重小,要夺取高产主要靠穗多和粒多取胜,据高产田块经济性状调查,平均1hm~2有效穗为 BoYou 752 has the advantages of strong heterosis, high elasticity of seedling age, good quality of rice, good shape of leaves and wide applicability. It was approved by Jiangxi Province Crop Variety Approval Committee in June 1999 and has become Jiangxi, Luchuan, Hainan and Guangdong The main planting techniques, now its main seed production techniques are introduced as follows: 1 grain structure Bo 1000 grain weight small, to win high yield mainly rely on the spike and more grain to win, according to high yield plots economic traits survey, the average 1hm ~ 2 effective panicle for