DB43/T2689—2023 43 湖 南 省 地 方 标 准ICS CCS 67.060 B 22 发 布 湖南省市场监督管理局籼型三系不育系贺50A繁殖技术规程 2023-08发布-22 2023-11实施-22Technical regulations for propagation of the three-line sterile line indica hybrid rice variety He50A DB43/T 2689—2023 I 目 次 前言 ································ ································ ································ ·························· Ⅲ 1 范围 ································ ································ ································ ······················ 1 2 规范性引用文件 ································ ································ ································ ······· 1 3 术语和定义 ································ ································ ································ ············· 1 4 产地环境 ································ ································ ································ ················ 1 4.1 环境要求 ································ ································ ································ ········ 1 4.2 产地选择 ································ ································ ································ ········ 1 4.3 季节选择 ································ ································ ································ ········ 2 5 繁殖技术 ································ ································ ································ ················ 2 5.1 播种期与播差期 ································ ································ ······························· 2 5.2 培育壮秧 ································ ································ ································ ········ 2 5.3 大田管理 ································ ································ ································ ········ 2 5.4 花期预测与调节 ································ ································ ······························· 3 5.5 喷施“九二〇”与辅助授粉 ································ ································ ················ 3 6 种子质量控制 ································ ································ ································ ·········· 3 6.1 使用合格亲本种子 ································ ································ ···························· 3 6.2 生产隔离 ································ ································ ································ ········ 3 6.3 防杂保纯 ································ ································ ································ ········ 3 7 收获与贮藏 ································ ································ ································ ············· 4 8 档案管理 ································ ································ ································ ················ 4 8.1 生产操作 ································ ································ ································ ········ 4 8.2 投入品使用 ································ ································ ································ ····· 4 8.3 物候期记载 ································ ································ ································ ····· 4 8.4 保存 ································ ································ ································ ··············· 4 附录A（资料性） 贺50A品种审定公告 ································ ································ ··········· 5 附录B（资料性） 田间管理档案 ································ ································ ···················· 6 B.1 农事活动记载表 ································ ································ ································ · 6 B.2 投入品使用记载表 ································ ································ ···························· 6 B.3 物候期记载表 ································ ································ ································ ·· 6 DB43/T 2689—2023 II DB43/T 2689—2023 III 前 言 本文件按照 GB/T 1.1 —2020《标准化工作导则 第1部分：标准化文件的结构和起草规则》的规 定起草。 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。 本文件由湖南省农业农村厅提出。 本文件由湖南省农业标准化技术委员会归口。 本文件起草单位：湖 南省贺家山原种场、益阳市农业科学院。 本文件主要起草人：郭