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High-yield Seed Production Techniques for Quality Hybrid Rice C-liangyou343
Author(s): 
Pages: 13-15
Year: Issue:  17
Journal: Hunan Agricultural Sciences

Keyword:  杂交稻C两优343高产制种技术;
Abstract: 通过4a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.
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