DB43/T 2316-2022 水稻品种耐迟收性状鉴定技术规程

ICS65.020.01

CCSB20

43

湖南省地方标准

DB43/T2316—2022

水稻品种耐迟收性状鉴定技术规程

Codeofpraticeforthethresholdofpost-maturation

sustainabilityricevarieties

2022-05-06发布2022-08-06实施

湖南省市场监督管理局发布

DB43/T2316—2022

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鉴定方法···············································································································1

4.1鉴定圃管理······································································································1

4.2性状调查·········································································································2

5综合评价···············································································································3

6对提供鉴定品种的要求·····························································································3

7病虫害防治············································································································3

8注意事项···············································································································3

附录A（资料性）水稻品种耐迟收性状评价试验申请表·····················································4

附录B（规范性）主要气象因子记载表··········································································5

附录C（规范性）水稻品种生育期记载表·······································································6

附录D（规范性）水稻品种耐迟收性状鉴定结果记载表·····················································7

参考文献····················································································································8

I

DB43/T2316—2022

II

DB43/T2316—2022

前言

本文件按照GB/T1.1—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：湖南省水稻研究所、湖南省农业科学院、湖南农业大学、怀化职业技术学院、湖

南金健种业科技有限公司、浏阳市沿溪镇人民政府、邵阳市农业农村局。

本文件主要起草人：曾晓珊、谢红军、汤国华、朱明东、敖和军、余应弘、方宝华、周昆、郝明、

吴立群、陈博、张祝明。

III

DB43/T2316—2022

IV

DB43/T2316—2022

水稻品种耐迟收性状鉴定技术规程

1范围

本文件规定了水稻品种耐迟收性状鉴定的方法、分类、对提供鉴定品种的要求、病虫害防治等技术

要求。

本文件适用于对一季晚稻、晚稻品种、种质耐迟收性状鉴定和耐迟收水稻品种、种质筛选。

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/T4401.1种子质量标准

3术语和定义

下列术语和定义适用于本文件。

3.1

耐迟收性状post-maturationsustainabilitycharacter，PMScharacter

水稻完熟期后14d，稻米产量、品质较完熟期收割无显著影响，且适宜能机械收割的性状，包括

植株倒伏性、籽粒落粒性及穗发芽性。

3.2

倾斜角度lodgingangle

成熟期植株向地面倾斜的角度。

3.3

落粒率grainpercentage

落粒数占总粒数（包括实粒数、空瘪粒数）的百分比。

3.4

穗发芽率paniclegerminationrate

发芽粒数占实粒总数的百分比。

4鉴定方法

4.1鉴定圃管理

4.1.1鉴定圃选择

鉴定圃应选择在土壤肥沃、肥力均匀，灌溉方便、田形周正、田面平整的水稻种植区。

1

DB43/T2316—2022

4.1.2参鉴品种分类

参鉴品种相应信息填入附录A，并根据生育期分一季晚稻组、晚稻中熟组、晚稻迟熟组。

4.1.3育苗

参鉴品种编号后，按正常季节播种育秧。秧龄期不超过25d。

4.1.4田间管理

移栽前做好排灌沟、田埂并覆膜，高度为15cm～20cm。移栽时，杂交稻每蔸插2粒谷苗，常规

稻每蔸插3粒谷苗；田块周围插4行保护行。肥料管理与常规生产一致。80％籽粒成熟时排水晒田。

记录第1个品种80％成熟后30d内的主要气象因子，记入附录B；记录每个水稻品种的生育期，记

入附录C。

4.2性状调查

4.2.1倾斜角度

待鉴水稻品种90％以上籽粒成熟后第14d，在非边行随机选取茎秆与地面垂直线偏离最大的10

株（穴），利用角度尺测量有效茎茎秆角度。2次重复，计算平均值。按表1进行分级，结果记入附录D。

表1倾斜角度分级

茎秆与铅垂线的夹角＜30°≤30°～45°≤45°～60°＞60°或穗部触地全株和稻穗平伏地面

直伏性状评价直中斜斜倒伏

级别(级)13579

4.2.2落粒率

待鉴水稻品种90％以上籽粒成熟后第7d，在非边行从植株上摘下主穗，置于1.5m高处，自

然水平坠落于5mm厚铁板上，连续操作3次。统计落粒率。随机取10个主穗，计算平均值。按表

2进行分级，结果记入附录D。

表2落粒性分级

落粒谷的百分率＜1％1％～5％5％～10％10％～30％＞30％

落粒性状评价低较低中较