Groupe d’Etude et de Contrôle

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• Publié par: Thiwyir
• Nombre de lectures: 27
• Langue: English

Extrait

Groupe d'Étude et de Contrôle
des Variétés et des Semences
Group for the Study and Control
of Varieties and Seeds

Secteur Étude des Variétés
Variety Study Department



Experimental Protocol


Turf Grasses

Value for Cultivation and Use
Trials

Version to be use for the 2010 season

DOCVAT/GAZ/PROTO/003/IND3

10 pages, 3 annexes

Principal changes:
GENERAL frame
p. 6 § 4: Observations results
p. 8 § 5: Transfer and treatment of data
Annex 2: Network trial locations

GEVES Network manager
Vincent Gensollen
Unité expérimentale La Valette
711 rue Jean-François Breton
34090 MONTPELLIER
Tél. [phone]
Fax [phone]
[e-mail]

GEVES trials network Comité Technique Permanent de la Sélection des plantes cultivées DOCVAT/GAZ/PROTO/003/IND3
Summary
1. Goal of the Experimentation ......................................................................................... 1
2. General Experimental Principles .................. 1
2.1 Enrolment Contract for the CTPS GEVES Trials Network ...................................... 1
2.2 Receipt of seeds for trials ...................................................................................... 1
2.3 Variety list conformity ............................ 2
2.4 Variety identification in the trial .............. 3
2.5 Visits to trials ......................................................................................................... 3
3. Experimental procedure 4
3.1 Trial layout - Surface of the plots ........... 4
3.2 Management of the trial ......................................................................................... 4
3.2.1 Sowing .......................................................................................................... 4
3.2.2 Method and frequency of mowing . 4
3.2.3 Fertilization ... 4
3.2.4 Weed control ................................................................................................ 5
3.2.5 Complementary protection ............ 5
3.2.6 Irrigation ....... 5
3.2.7 Wear ............................................................................................................. 5
4. Observations, results .... 6
4.1 Characters recorded .............................................................................................. 6
4.2 Rating scale and scoring ....................... 7
5. Transfer and treatment of data ..................................................................................... 8
5.1 Agronomic data ..................................... 8
5.2 Plot data ................ 8
5.3 Missing value ......................................................................... 9
5.4 Confidentiality of data ............................................................ 9
5.5 Transfer of data to GEVES .................... 9
5.6 Validation of the trials ................................ 9
6. Contacts for any additional information required ..................... 10
List of annexes ................................................................................................ 1

Annex 1: Enrolment contract for the CTPS trials network ..... 2 pages
Annex 2: Network trial locations .............. 1 page
Annex 3: List of turf grass species .......................................................................... 1 page


VCU Experimental Protocol - Turf Grasses -2010 Season DOCVAT/GAZ/PROTO/003/IND3
1. Goal of the Experimentation
The Trial network of CTPS (Permanent Technical Committee for breeding) is managed and
placed under the control of GEVES. It has for object the testing of the Value for Cultivation
and Use (VCU) of new candidate varieties presented for registration to the Official
Catalogue.
The object of the present protocol is to describe the experimental procedures used in the
framework of the trial of the Value for Cultivation and Use (VCU) for the study of the turf
grass varieties.

The aim of the trials is to evaluate the behaviour of these varieties in comparison with control
varieties selected for their “agronomic” value and sales. Every year, the control varieties are
chosen by the “Fodder crop and Turf” section of CTPS. The trials last three years.

At the end of the 3-year study, varieties whose value is judged to be satisfactory, in
comparison with the check varieties, are admitted for VCU.

The GEVES trials network comprises locations in France and in other European countries
(see the list of locations in annex 2). It gathers trials conducted at experimental stations of
Institutes for Agricultural Research or Offices for varieties registration, at private plant
breeding stations, and at agricultural schools. The species concerned are listed in annex 3.
2. General Experimental Principles
2.1 Enrolment Contract for the CTPS GEVES Trials Network

Within the CTPS experimental network, all plant material comprising the varieties under trial
supplied to trial hosts is subject to restricted use and conditions of confidentiality.

An enrolment contract is provided by GEVES which must be signed by all trial
hosts/establishments taking part in the GEVES Trials Network and is binding with respect to
the procedures stipulated therein (annex 1).

The contract remains in force for the entire period during which the trial host takes part in the
GEVES Trials Network irrespective of the species under study. In the event of a change of
name, or of a merger of the establishment concerned, the contract (annex 1) will be renewed
and signed.

NB: the terms of the enrolment contract can be included in a more general contract
which deals with other aspects. In such a case, there might be no need to sign the
model enrolment contract.

2.2 Receipt of seeds for trials

The seed management department of GEVES receives, packages and dispatches to trial
hosts the seed lots that are grouped according to trials (GEVES Magneraud, BP 52 - 17700
SURGERES France - Contact: Xavier De LAFFOREST - Phone + 33 546 68 30 89 or +33
546 68 30 26).
At each location, the trial host receives a sample in a bag labelled with the name of the
species and the variety, the number of the cultivar, and the trial series.
VCU Experimental Protocol - Turf Grasses -2010 Season Page 1/10
DOCVAT/GAZ/PROTO/003/IND3




The quantity of seed supplied for each variety varies with the species:
Species Name Latin Species Name Quantity
Creeping Bent Agrostis stolonifera L 100 grams
Browntop Bent Agrostis capillaris L 100 grams
Cocksfoot Dactylis glomerata L. 200 grams
150 grams (300 g
Tufted hairgrass Deschampsia caespitosa depending on the plot
surface)
Tall Fescue Festuca arundinacea Schreber 250 grams (500 grams
depending on the plot
surface)
Hard and Sheep’s Fescues Festuca ovina L. 200 grams (400 grams
depending on the plot
surface)
Slender Creeping Red Festuca rubra L. Ssp litoralis 200 grams (400 grams
Fescues Festuca rubra L. Ssp pruinosa depending on the plot
surface)
Chewing Fescue Festuca rubra L. Ssp 200 grams (400 grams
commutata depending on the plot
surface)
Strong Creeping Red Fescuca rubra L. Ssp rubra 200 grams (400 grams
Fescue depending on the plot
surface)
150 grams (300 g
Crested hairgrass Koeleria macrantha depending on the plot
surface)
Timothy Phleum bertolonii DC 150 grams
Rough-Stalked Meadow- Poa trivialis L 150 grams
Grass
Smooth-Stalked Meadow- Poa pratensis L 150 grams (300 grams
Grass depending on the plot
surface)
Perennial Ryegrass Lolium perenne L. 200 grams (400 grams
depending on the plot
surface)

A traceability form is included in the seed kits. The form must be returned to GEVES
Magneraud, if an anomaly is observed.

2.3 Variety list conformity

The lists of varieties are composed of new candidate varieties in study for VCU and of check
varieties defined annually. The lists of varieties are identical for the whole trial network
concerned.
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DOCVAT/GAZ/PROTO/003/IND3
The lists of varieties are enclosed in the seed kits dispatched by GEVES. The lists are
validated by the VCU trials network manager (“GRES” according to the French acronym)
who will contact the trial hosts if necessary.
On reception, the trial hosts should ensure that the batches of seeds they receive
match the list or lists included in the experimental protocol.
In the case of a discrepancy, the trial host should contact the network manager
without delay.
The addition or withdrawal of any variety is subject to the approval of the network
manager, solely authorised to modify the list of the varieties in trial.
Use of varieties under trial for border plots or additional plots in the trial is prohibited.

To complete a trial or for borders, aside from the controls supplied by GEVES, the trial host
shall only use registered varieties from the Europ