INTERNATIONAL UNION FOR THE PROTECTION OF NEW VARIETIES OF PLANTS TECHNICAL WORKING PARTY FOR ORNAMENTAL PLANTS AND FOREST TREES. Forty-Fifth Session

Transcription

1 ORIGINAL: English DATE: July 10, 2012 INTERNATIONAL UNION FOR THE PROTECTION OF NEW VARIETIES OF PLANTS Geneva E TECHNICAL WORKING PARTY FOR ORNAMENTAL PLANTS AND FOREST TREES Forty-Fifth Session Jeju, Republic of Korea, August 6 to 10, 2012 ADDENDUM VARIETY DESCRIPTION DATABASES Document prepared by an expert from France The Annex to this document contains a copy of a presentation, prepared by an expert from France for the forty-fifth session of the Technical Working Party for Ornamental Plants and Forest Trees, concerning reference collections and grouping characteristics, using the example of Pea. [Annex follows]

2 ANNEX Reference Collection and grouping characteristics Example of the Pea species 1 Monterey (USA, 2011) : TWV/45/24 Partial Revision of the Test Guidelines for Pea (TG/7/10), TWV/45/6 Variety Descriptions Databases TWV/45/13 Concept of a Database Containing Pea Variety Descriptions Goals : to define the theoretical collection of varieties of common knowledge to collect a maximum of descriptions of these varities to define reliable characteristics for use as excluding characterisitics = strong and discriminant charactéristics Aim :To obtain a Common Working Data Base Helpful to chose reference varieties in DUS examination. 2

3 Variétal denomination EU CPVO UPOV OECD PMA EU Actual Maintainer EU 1st Registration EU 1st Maintainer EU Last withdrawal EU Last Maintainer EU Additional extension ) CPVO Applicant CPVO Status UPOV Applicant UPOV Cebeco Handelsraad (NL) FR #5147 DARK SKIN UPOV Canners Seed Corporation US PERFECTION #6060 FREEZER UPOV Canners Seed Corporation US #7025 EARLY SWEET UPOV Canners Seed Corporation US #8221 EARLY UPOV Canners Seed Corporation US PERFECTION #8615 EARLY UPOV Canners Seed Corporation US PERFECTION #8617 EARLY UPOV Canners Seed Corporation US PERFECTION OECD Applicant PMA Applicant CPVO Application date UPOV Application date UPOV Country OECD Appli. N PMA Application date PMA Status TWO/45/6 Add. Annex, page 2 Reference collection OECD Pea theoretical collection = varieties 3 FRANCE-UPOV TWV, BMT, Venlo Brasilia envisaged for excluding Current grouping characteristics i.e. anthocyanin coloration, number of nodes up to and including first fertile node, hilum color New potential grouping characteristics i.e. fasciation, time of flowering, resistance 2 excel files have sent in order to know information (synonym, market #9888 FREEZER UPOV Nunhems Zaden B.V. US If the variety should appear in the technical collection, If description or/and seeds are available. The note of each characteristic for each variety. 4

4 Annex, page 3 Argentina, Australia, Bulgaria, Canada, China, Czech Republic, Germany, Denmark, Estonia, France, United Kingdom, Hungary, Japan, Kenya, Republic of Korea, Republic of Moldova, Netherlands, New Zealand, Poland, Portugal, European Union, Romania, Russian Federation, Slovakia, Ukraine, United State of America & South Africa have been contacted. At this time, 11 countries (2/5) answered this study and sent us descriptions in the following proportion : descriptions received, concerning 2467 varieties more than 78% of the theoretical collection 5 Properties of individual characters Use Number of time this characterisric is described / total number of described varieties Discriminating power % of excluded varieties on the basis of the character Distortion Number of differences between descriptions concerning the same variety 6

5 Annex, page 4 Use of the characteristics 7 Discraminating power Qualitative characteristics Quantitative characteristics 8

6 Annex, page 5 Distortion (1/2) Analysis performed only on varieties for which we received more than one description. Qualitative characteristic Number of varieties with # notes Total number of varieties Percentage of distortion 1 Anthocyanin coloration Color of cotyledon Presence of leaflets Pod extremity Fusarium Resistance to Ascochyta Obviously, some differences are due to errors in notes transcriptions, using wrong guidelines or observations of wrong variety. Contact will be made to clarify some issues 9 Distortion (2/2) Quantitative characteristic Number of varieties with # notes Total number of varieties Percentage of distortion Difference between varieties 1 note 5 Number of Nodes Stem lengh Pod curvature Seed weight Immature seed color 25 Number max of flower notes notes For these continuous characteristics, special attention must be paid in term of distances between varieties

7 Annex, page 6 To conclude, it s possible to characterize each character to help the experts to choose the best For official grouping characters Use Discriminating power Distortion 1 Anthocyanin coloration / Number of nodes >4/5/ * 8 Presence of leaflets / Flecking on stipules / Pod parchment / Pod thickened wall / Pod extremity / Pod color /98/ Immature seed color >4/5/6 8.29* Use Discriminating Distortion power >75% < [60 40] < 10 [60 40] / [80 40% 75% 20] <40% >[80 20] >20 49 Type of strach grains / Color of cotyledon / Seed marbling of testa / Pink spots on testa /5/ Hilum color / _1 Fusarium / *2 notes 11 For candidate grouping characters Use Discriminating power Distortion 3 Fasciation / Stem lengh >4/5/ * 6 Color of foliage /93/ Time of flowering >4/5/ * 25 Max number of flower >4/5/6 4.53* Use Discriminating Distortion power >75% < [60 40] < 10 [60 40] / [80 40% 75% 20] <40% >[80 20] >20 26 Color of wing / Pod length >4/5/ * 38 Pod width >4/5/ * 42 Pod curvature >4/5/ * 44 Pod intensity color >4/5/ * 45 Pod suture strings / Seed shape /45/4/ Seed weight >4/5/ * 59 Resistance to Erysiphae / Resistance to Ascochyta / Plant : habit >4/5/6 0* Pod : type curvature /1/ Seed : Dimpled / Virus / *2 notes 12

8 Annex, page 7 Among 3127 varieties present in the theroretical collection, 667 ones are without description after this study : 103 from the EU catalogues including 48 non-withdrawn ones countries in charge of the admission should be contacted 13 from CPVO 415 from UPOV (PLUTO database) 108 from OECD 21 are EU Provisional Market Authorization 13 How to go on What is it possible to do? Relation for number of nodes between UK and FR on 875 varieties Number of nodes Percentage of varieties (Difference UK/FR) ) ) 80 % ) Except for some errors, (to be clarified), more than 80 % of the varieties have one or two notes less in UK than in FR. 14

9 Annex, page 8 How to go on Correlation between 2 characters can be examined variable graph (pois) Dim 2 (8.61%) X47.Immature.seed.colour X44.Pod.intensity.colour X49.Type.of.strach.grains X8.Presence.of.leaflets Virus.2 X38.Pod.width X48.Seed.shape X37.Pod.length X4.Stem.lengh Seed...Dimpled Dim 1 (14.09%) On the basis of the actual data, it seems that 58 % of the variabilité of the characteristic «Time of flowering» could be explained by the characteristic «Number of nodes» X1.Anthocyanin.coloration X5.Number.of.nodes X55.Hilum.colour X54.Pink.spots.on.testa X57.Seed.weight X24.Time.of.flowering X53.Seed.marbling.of.testa X41.Pod.extremity X52.Colour.of.cotyledon Timeflowering R²Pearson= Nbnodes THANK YOU 16