Plant biostimulants - Claims - Part 3: Tolerance to abiotic stress resulting from the use of a plant biostimulant

This document provides guidance for justifying abiotic stress tolerance claim of plant biostimulants used in agriculture.
This document is aimed primarily at manufacturers, laboratories, companies which will put the products on market, notifying authorities, notified bodies, and market surveillance authorities).

Biostimulanzien für die pflanzliche Anwendung - Angaben - Toleranz gegenüber abiotischem Stress infolge der Verwendung eines Biostimulans für die pflanzliche Anwendung

Dieses Dokument dient als Leitfaden für die Begründung von Produktangaben zur Toleranz gegenüber abiotischem Stress von Biostimulanzien für die pflanzliche Anwendung in der Landwirtschaft.
Dieses Dokument richtet sich in erster Linie an Hersteller, Labore, Forschungstätige, technische Zentren, Unternehmen, die die Produkte in Verkehr bringen werden, notifizierende Behörden, notifizierte Stellen und Marktüberwachungsbehörden.

Biostimulants des végétaux - Allégations - Partie 3 : Tolérance au stress abiotique résultant de l’utilisation d’un biostimulant des végétaux

Le présent document fournit des recommandations pour justifier l’allégation de tolérance au stress abiotique des biostimulants des végétaux utilisés en agriculture.
Le présent document est principalement destiné aux fabricants, aux laboratoires, aux sociétés qui vont mettre les produits sur le marché, aux autorités notifiantes, aux organismes notifiés et aux autorités de surveillance du marché.

[Not translated]

General Information

Status
Not Published
Current Stage
5060 - Closure of Vote - Formal Approval
Due Date
02-Dec-2021
Completion Date
02-Dec-2021

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SLOVENSKI STANDARD
kSIST-TS FprCEN/TS 17700-3:2021
01-november-2021
[Not translated]

Plant biostimulants - Claims - Part 3: Tolerance to abiotic stress resulting from the use of

a plant biostimulant
Biostimulanzien für die pflanzliche Anwendung - Angaben - Toleranz gegenüber
abiotischem Stress infolge der Verwendung eines Biostimulans für die pflanzliche
Anwendung

Biostimulants des végétaux - Allégations - Partie 3 : Tolérance au stress abiotique

résultant de l’utilisation d’un biostimulant des végétaux
Ta slovenski standard je istoveten z: FprCEN/TS 17700-3
ICS:
65.080 Gnojila Fertilizers
kSIST-TS FprCEN/TS 17700-3:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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kSIST-TS FprCEN/TS 17700-3:2021
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kSIST-TS FprCEN/TS 17700-3:2021
FINAL DRAFT
TECHNICAL SPECIFICATION
FprCEN/TS 17700-3
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
September 2021
ICS 65.080
English Version
Plant biostimulants - Claims - Part 3: Tolerance to abiotic
stress resulting from the use of a plant biostimulant

Biostimulants des végétaux - Allégations - Partie 3 : Biostimulanzien für die pflanzliche Anwendung -

Tolérance au stress abiotique résultant de l'utilisation Angaben - Toleranz gegenüber abiotischem Stress

d'un biostimulant des végétaux infolge der Verwendung eines Biostimulans für die
pflanzliche Anwendung

This draft Technical Specification is submitted to CEN members for Vote. It has been drawn up by the Technical Committee

CEN/TC 455.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a Technical Specification. It is distributed for review and comments. It is subject to change

without notice and shall not be referred to as a Technical Specification.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprCEN/TS 17700-3:2021 E

worldwide for CEN national Members.
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kSIST-TS FprCEN/TS 17700-3:2021
Contents Page

European foreword ............................................................................................................................................. 3

Introduction .......................................................................................................................................................... 4

1 Scope .......................................................................................................................................................... 5

2 Normative references .......................................................................................................................... 5

3 Terms and definitions ......................................................................................................................... 5

4 Terminology of the claim ................................................................................................................... 6

5 Justification of plant biostimulant claims regarding abiotic tolerance ............................. 7

5.1 Introduction ............................................................................................................................................ 7

5.2 Trial design with negative control .................................................................................................. 7

5.3 Trial design without negative control ........................................................................................... 8

6 Agronomic Markers to validate the claim .................................................................................... 9

7 Specifications for the performance of the trials ......................................................................11

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kSIST-TS FprCEN/TS 17700-3:2021
FprCEN/TS 17700-3:2021 (E)
European foreword

This document (FprCEN/TS 17700-3:2021) has been prepared by Technical Committee CEN/TC 455

“Plant biostimulants”, the secretariat of which is held by AFNOR.
This document is currently submitted to the Vote on TS.

The CEN/TS 17700 series, Plant biostimulants - Claims, consists of the following parts:

— Part 1: General Principles;

— Part 2: Nutrient use efficiency resulting from the use of a plant biostimulant;

— Part 3: Tolerance to abiotic stress resulting from the use of a plant biostimulant;

— Part 4: Determination of quality traits resulting from the use of a plant biostimulant;

— Part 5: Determination of availability of confined nutrient in the soil or rhizosphere.

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kSIST-TS FprCEN/TS 17700-3:2021
FprCEN/TS 17700-3:2021 (E)
Introduction

This document has been developed to provide guidance for a consistent approach to justify the claims

associated with the use of plant biostimulants in agriculture.

The definition of plant biostimulants to be used in the regulation on fertilizing materials is

claims-based. For this reason, demonstrating that a product is indeed a bona fide plant biostimulant

depends on a demonstration of its effect.

The placing of a plant biostimulant on the market is not to be considered to guarantee effectiveness under

all conditions, as many factors may influence the performance of a plant biostimulant in the field.

Plant Biostimulants used in agriculture are applied in multiple ways: on soil, on plant, as seed treatment,

etc. This document is applicable to all application types of plant biostimulants in agriculture.

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kSIST-TS FprCEN/TS 17700-3:2021
FprCEN/TS 17700-3:2021 (E)
1 Scope

This document provides guidance for justifying abiotic stress tolerance claim of plant biostimulants used

in agriculture.

This document is aimed primarily at manufacturers, laboratories, companies which will put the products

on market, notifying authorities, notified bodies, and market surveillance authorities).

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

CEN/TS 17700-1:— , Plant biostimulants - Claims Part 1: General Principles
CEN/TS 17724:— , Plant biostimulants - Terminology
3 Terms and definitions

For the purposes of this document, the terms and definitions given in CEN/TS 17700-1:—,

CEN/TS 17724:— and the following apply.
3.1
tolerance to abiotic stress
ability to endure abiotic stress
3.2
abiotic stress

negative impacts of non-living factors on the plant in a specific crop environment

Note 1 to entry: Crop tolerance to abiotic stress is addressed to one or more (multiple or combined) of the following

stress categories:
1) thermal stress,
2) light stress,
3) mechanical stress,
4) water stress,
5) chemical stress.
3.3
thermal stress

negative impact of temperature (supra-optimal and sub-optimal temperature) on the plant in a specific

crop environment
EXAMPLE heat stress or cold stress such as chilling and freezing stress
Under preparation. Current stage is: FprCEN/TS 17700-1:2021.
Under preparation. Current stage is: FprCEN/TS 17724:2021.
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FprCEN/TS 17700-3:2021 (E)
3.4
light stress

negative impact of light intensity and/or spectrum on the plant in a specific crop environment

EXAMPLE high irradiance or low irradiance, UV radiation
3.5
mechanical stress

negative impact of a mechanical force on the plant or the root zone in a specific crop environment

EXAMPLE wind, hail, agricultural operations
3.6
water stress

negative impact of water or high solutes concentrations (supra-optimal and sub-optimal water level) or

excessive transpiration on the plant in a specific crop environment
EXAMPLE drought, high air vapour pressure deficit, flooding
3.7
chemical stress

negative impact of chemicals (supra-optimal or sub-optimal chemical compounds or presence) on the

plant in a specific crop environment

EXAMPLE salt stress, mineral toxicity induced by heavy metals or excessive application of mineral nutrients,

adverse pH conditions, ozone stress, phytotoxic effects of xenobiotics
3.8
xenobiotic

chemical substance found within an organism that is not naturally produced or expected to be present

within the organism
EXAMPLE heavy metals, pesticides, ozone
4 Terminology of the claim

The type of claim(s) included in the Technical Specification can be addressed to one or more of the above

defined abiotic stress(es) – see 3.3 to 3.7.

For instance, a plant biostimulant can improve plant tolerance to a single abiotic stress factor such as

heat stress or to multiple abiotic stress factors such as heat stress and salt stress in one or more target

crop(s).

Label shall clearly indicate that the plant biostimulant is addressed to improve tolerance to abiotic stress

with a clear indication of the type of abiotic stress(es) and the crop(s) on which the effect is demonstrated

according to CEN/TS 17700-1:—.

EXAMPLE “improve tolerance to drought stress on woody perennials”, “improve tolerance to cold stress on

tomato”
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FprCEN/TS 17700-3:2021 (E)
5 Justification of plant biostimulant claims regarding abiotic tolerance
5.1 Introduction

In open field conditions it can be difficult to fully control specific abiotic stress factors due to their

inherent variability and due to the fact, that, often several abiotic stresses may be present at the same

time (combinational stresses). Therefore, to fully validate an abiotic stress tolerance claim with both a

negative (untreated and unstressed) control and a positive (untreated and stressed) control it should

take place under controlled conditions (e.g. growth chamber, growth room, greenhouse).

In controlled conditions or where a negat
...

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