优质杂交稻C两优343高产制种技术

通过4 a的制种实践及大面积生产,总结了C两优343亲本的特征特性及高产制种技术。制种成败的关键在于选择适宜的制种区域和季节,把握好父母本播差期,在湘南地区C两优343父母本最为适宜的播差期为父本播后8～13 d、叶龄差2.0～2.5叶。同时要培育多蘖壮秧,打好高产基础;适时移栽,合理密植;加强肥水管理,创建高产群体结构;科学喷施"九二0",提高异交结实率;严格"去杂去劣",确保种子质量;加强病虫防治,确保丰产丰收。

C两优343直播栽培技术

C两优343是一个多穗型的两系中晚季杂交稻组合,丰产性好,生育期适宜,适应性好,植株矮,适于直播等轻简栽培和机械化生产。根据试验示范总结出了该组合的水田直播和旱地直播栽培技术。

两系杂交稻C两优343推广成功原因的思考

C两优343是一个多穗型的两系杂交稻组合,丰产性好,适应性广,米质优于其它C两优系列组合,在全国多省区推广应用达16万hm^2。通过其推广成功原因的分析,提出了创新是C两优343得以成功推广的关键,如能在旱种上取得成功,还将开辟出它新的市场。

Thinking on the Successful Promotion of Twoline Hybrid Rice C Liangyou 34

C Liangyou 343 is a two-line hybrid rice combination with multiple spikes, which has high yield and wide adaptability, and with superior rice quality to other combination. Analysis showed that innovation was the key to the successful promotion of C Uangyou 343, and if it could be applied to the dry-cultivation successfully, a new market could be opened up.