ICS 65.020 CCS B 61 湖 43 南 省 地 方 标 准 DB43/T 2046—2021 板栗截干嫁接换优技术规程 Code of practice on Stumped Grafting for Optimizing Chinese Chestnut Plantation 2021 - 06 - 02 实施 2021 - 04 - 02 发布 湖南省市场监督管理局 发 布 DB43/T 2046—2021 目 次 前言························································································································ Ⅲ 1 范围 ····················································································································· 1 2 规范性引用文件 ······································································································ 1 3 术语与定义 ············································································································ 1 3.1 截干嫁接换优 ··································································································· 1 3.2 插皮接 ············································································································ 1 4 截干嫁接 ··············································································································· 1 4.1 林分密度调整 ··································································································· 1 4.2 品种选择 ········································································································· 1 4.3 穗条选择 ········································································································· 1 4.3.1 穗条采集 ··································································································· 2 4.3.2 穗条处理 ··································································································· 2 4.4 砧木选择 ········································································································· 2 4.4.1 砧木林分选择 ····························································································· 2 4.4.2 砧木嫁接部位 ····························································································· 2 4.5 嫁接 ··············································································································· 2 4.5.1 时间 ········································································································· 2 4.5.2 方法 ········································································································· 2 4.5.3 步骤 ········································································································· 2 5 嫁接后管理 ············································································································ 3 5.1 成活检查及补接 ································································································ 3 5.2 解罩与解绑 ······································································································ 3 5.3 除萌 ··············································································································· 3 5.4 扶绑 ··············································································································· 3 5.5 摘心 ··············································································································· 3 6 病虫害防治 ············································································································ 3 7 档案管理 ··············································································································· 3 附录 A（资料性） 湖南省板栗良种 ················································································ 4 I DB43/T 2046—2021 II DB43/T 2046—2021 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。 本文件由湖南省林业局提出。 本文件由湖南省林业标准化技术委员会归口。 本文件起草单位：湖南省林业科学院。 本文件主要起草人：陈景震、胡伟、钟武洪、全新、李桂珍、吉悦娜、刘建兵、李力、杨艳、李培 旺、李党训、张良波、王昊、盛孝前、唐飞、姚辉。 III DB43/T 2046—2021 IV DB43/T 2046—2021 板栗截干嫁接换优技术规程 1 范围 本文件规定了板栗（Castanea mollissima Bl.）截干嫁接换优技术的术语与定义、截干嫁接、砧木选 择与处理、嫁接、嫁接后管理、病虫害防治等技术要求。 本文件适用于截干嫁接方法进行的板栗低产实生林改造、板栗种质资源收集圃和板栗采穗圃的营 建。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件， 仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本 文件。 GB/T 8321 农药合理使用准则 GB/T 18894—2016 电子文件归档与电子档案管理规范 LY/T 1337 板栗优质丰产栽培技术规程 NY/T 1276 农药安全使用规范总则 3 术语与定义 下列术语和定义适用于本标准。 3.1 截干嫁接换优 Stumped Grafting for Optimizing 在砧木主干位置 80 cm～120 cm 区截干，进行良种接穗嫁接。 3.2 插皮接 Plug Bark Grafting 在截干断面边缘皮层纵切两刀，拉开树皮将接穗插入开口进行嫁接的方法。 4 截干嫁接 4.1 林分密度调整 2 2 保留 600 株/hm ～900 株/hm 。 4.2 品种选择 湖南省引进良种及地方良种参见附录 A。 4.3 穗条选择 1 DB43/T 2046—2021 4.3.1 穗条采集 2 月中旬至 3 月初，采集良种板栗树冠中上部外围生长健壮、