ICS

65.020.40CCS

B

43湖 南 省 地 方 標(biāo) 準(zhǔn)DB43/T

2237—2021油茶嫁接苗與實(shí)生苗形態(tài)鑒別及檢測Morphological

identification

and

quality

detection

forgrafted

sapling

and

seedling

of

Camellia

oleifera2021

-

12

-

07

發(fā)布

2022

-

-

實(shí)施湖南省市場監(jiān)督管理局

發(fā)

布DB43/T

— 前言························································································································

Ⅲ1

·····················································································································

12

規(guī)范性引用文件······································································································13

術(shù)語和定義············································································································14

鑒別程序···············································································································15

鑒別方法···············································································································26

質(zhì)量檢測···············································································································37

質(zhì)量判定···············································································································38

檔案管理···············································································································4DB43/T

2237— 本文件按照

GB/T

—2020《標(biāo)準(zhǔn)化工作導(dǎo)則 第

1

部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草。請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。本文件由湖南省林業(yè)局提出。本文件由湖南省林業(yè)標(biāo)準(zhǔn)化技術(shù)委員會(huì)歸口。中心、湖南省林業(yè)種苗中心、汨羅市桃林林場。軍、黃水清。IIIDB43/T

2237—1

理等要求。本文件適用于

1～2

年生油茶嫁接苗與實(shí)生苗在生產(chǎn)、出圃和銷售環(huán)節(jié)的形態(tài)鑒別及

2

年生以上苗木質(zhì)量檢測。2

規(guī)范性引用文件文件。GB

6000 主要造林樹種苗木質(zhì)量分級(jí)GB/T

26907 油茶苗木質(zhì)量分級(jí)LY/T

1000 容器育苗技術(shù)LY/T

2289 林木種苗生產(chǎn)經(jīng)營檔案LY/T

2418 苗木抽樣方法3

術(shù)語和定義下列術(shù)語和定義適用于本文件。3.1芽苗砧嫁接 nurse

grafting以種子催芽后形成的胚芽（或根）作砧木，以當(dāng)年生新梢作接穗的一種劈接嫁接方法。3.2嫁接苗

sapling使用優(yōu)良無性系穗條為接穗，采用嫁接方法繁育的苗木。3.3實(shí)生苗 由種子萌發(fā)培育的苗木，也包括嫁接后從砧木萌芽生長形成的苗木。3.4一批苗木 a

lot

同一樹種（或品種）在同一苗圃，用同一批繁殖材料，采用基本相同的育苗技術(shù)培育的同齡苗木。4

鑒別程序4.1 苗木取樣DB43/T

2237—4.1.1 取樣時(shí)間苗木嫁接成活后生長

2

個(gè)月以上至出圃前，以秋冬季最佳。4.1.2 取樣方法與數(shù)量GB

6000

抽樣”執(zhí)行；如為指導(dǎo)苗木生產(chǎn)和保證出圃苗木純度，則應(yīng)全面調(diào)查并清除苗圃地實(shí)生苗。4.2 苗木鑒別5

鑒別方法”執(zhí)行。5

鑒別方法5.1 初步鑒別葉色、嫩梢等與其它大部分嫁接苗有明顯區(qū)別的苗木，將其單獨(dú)區(qū)分進(jìn)行苗株鑒別。5.2 苗株鑒別5.2.1 生長特征5.2.1.1 苗高高度可作為判斷嫁接苗與實(shí)生苗的第一特征。在圃地里

1～2

年生同一批苗木中，實(shí)生苗高生長比嫁接苗快，大多數(shù)實(shí)生苗苗高比同批次嫁接苗高出約

15％～％，兩者有明顯的差異。5.2.1.2 苗干紅色，無明顯嫁接口。5.2.1.3 生長方向嫁接苗在幼苗期向偏斜方向生長，1

年生苗表現(xiàn)最明顯；實(shí)生苗直立生長。5.2.2 葉片特征5.2.2.1 葉形齒不規(guī)則。5.2.2.2 葉色色。DB43/T

2237—5.2.3 芽特征紫色，腋芽瘦小。6

質(zhì)量檢測6.1 抽樣

LY/T2418

4

和

GB

6000

抽樣”執(zhí)行。6.2 檢測6.2.1 檢測規(guī)則地徑、苗高、主根長度、大于

5

cmⅠ級(jí)側(cè)根數(shù)，容器苗應(yīng)觀察綜合指標(biāo)并測定地徑、苗高。6.2.2 指標(biāo)與方法6.2.2.1 綜合指標(biāo)

5

容器苗還應(yīng)根系發(fā)達(dá)，容器不破碎并形成良好根團(tuán)。6.2.2.2 地徑用游標(biāo)卡尺測量，如測量部位出現(xiàn)膨大，則測量其上部苗干起始正常處，讀數(shù)精確至

0.05

cm。6.2.2.3 苗高用鋼卷尺測量，自地徑沿苗干至頂芽基部，讀數(shù)精確至

1

cm。6.2.2.4 主根長度用鋼卷尺測量，自地徑沿主根至根底端，讀數(shù)精確至

1

。6.2.2.5 大于

5

cmⅠ級(jí)側(cè)根數(shù)目測觀察，直接從主根長出的大于

5

cmⅠ級(jí)側(cè)根，計(jì)數(shù)。7

質(zhì)量判定7.1 質(zhì)量要求油茶嫁接苗均應(yīng)

2

1

合格苗不分級(jí)，質(zhì)量要求按表

2

執(zhí)行。/cm/cm/cm/cm/cm

/cm

cm

400.4015250.301080無檢疫對(duì)象病蟲600.6020450.451575/cm/cm

300.30主根發(fā)達(dá)，側(cè)根團(tuán)完整，主80

500.5075DB43/T

2237—表

1 油茶合格裸根