GB/T 35566-2017 in English

VALID

Guidelines for the conduct of tests for distinctness，uniformity and stability-Pomegranate(Punica L.)

Issued on:2017-12-29
Implemented on:2018-07-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $310.00
$301.00

Standard No:	GB/T 35566-2017
Document status:	VALID
Title in English:	Guidelines for the conduct of tests for distinctness，uniformity and stability-Pomegranate(Punica L.)
Title in Chinese:	植物新品种特异性、一致性、稳定性测试指南石榴属
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2017-12-29
Implemented on:	2018-07-01
ICS Classification:	65.020.20-Plant growing
Chinese Classification:	B05-Agriculture and forestry technology
Professional Classification:	GB-National Standard
Related Keywords:	trait observation trait difference north/south trait system trait characteristics archive system trait data collection key monitoring
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《GB/T 35566-2017植物新品种特异性、一致性、稳定性测试指南石榴属》由432（国家林业和草原局）归口，主管部门为国家林业和草原局。

Introduction

Analysis of the core framework of the standard

Modules	Core elements	Technical points
Test materials	Asexually propagated 3-year-old plants	At least 6 plants, trait modification treatment is prohibited
Test cycle	Complete growth cycle	Differentiation of maturity period in the north/south
Trait system	57 trait characteristics	Including 16 key traits with asterisks

Detailed explanation of key technical indicators

4.2.5 Specifications for trait observation

The standard puts forward clear requirements for the observation of various organs of pomegranate:

Branches: select the sunny branches on the upper and middle outer part of the crown
Fruit: collect 2-3 normally developed fruits from each plant
Seed hardness: divided into three levels: soft seed (<4.5kg/cm²), semi-soft and hard seed (>7.5kg/cm²)

Comparison of DUS judgment standards

Dimension	Specificity	Consistency	Stability
Determination method	Constant + significant difference	Heteromorphic strains ≤1/6	Generational trait recurrence
Quality traits	1 trait difference	95% reliability	Additional parent test
Quantitative traits	2 traits or 1 trait 2 code differences

Recommendations for the implementation of the standard

Test material preparation

It is recommended to cultivate one year in advance class=instrument>Test plants to ensure:

Use local main varieties as rootstock
Planting density ≥3m×4m
Establish a trait observation archive system

Trait data collection

Key monitoring:

Fruit peel thickness: Measure the equator with a vernier caliper
Sugar-acid ratio: Laboratory testing equipment is required
Flowering period record: 75% of the flowers are in bloom

More samples: JJG 21-2008 GB 50021-2001(2009) JC/T 2453-2018

Sample only — not a preview of GB/T 35566-2017

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