Identification des différentes variétés de manioc

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Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Presentation made by Apollin Fotso Kuate at the Regional forum on cassava in central Africa, on 6-9 Dec 2016, in Yaoundé, Cameroon.

Petites entreprises & entrepreunariat

www.iita.orgA member of CGIAR consortium
IDENTIFICATION DES DIFFÉRENTES
VARIÉTÉS DE MANIOC

www.iita.orgA member of CGIAR consortium
DESCRIPTEURS D’IDENTIFICATION
DES VARIÉTÉS DE MANIOC

www.iita.orgA member of CGIAR consortium
IDENTIFICATION DES VARIETES

www.iita.orgA member of CGIAR consortium
Objectif
IDENTIFICATION DES VARIETES
• Etablir la différence entre deux variétés de manioc en
utilisant des descripteurs d’identification

www.iita.orgA member of CGIAR consortium
POURQUOI CONNAITRE L’IDENTITE D’UNE VARIETE?
IDENTIFICATION DES VARIETES
• Satisfaire les besoins des agro industries (cas de NESTLE)
• Différencier les variétés «douces » des variétés «amères»?
• Différencier les variétés biofortifiées?
• Définir le produit de transformation le plus adapté ?

www.iita.orgA member of CGIAR consortium
Méthodes morphologiques
IDENTIFICATION DES VARIETES
• Feuilles (Pilosité, couleur, forme, nombre de lobes,…)
• Tiges (Couleur, ramification,…)
• Racines (Couleur, forme,…)
Méthodes analytiques basées sur l’ADN
• Simple Sequence Repeat (SSR)
• Genotyping-by-sequencing (GBS)
• Single nucleotide polymorphisms (SNP)

www.iita.orgA member of CGIAR consortium
Methodes morphologiques
IDENTIFICATION DES VARIETES
 Age de la plante
• 3 mois ( Couleur et pubescence des feuilles apicales)
• 6 mois (Forme du lobe centrale de la feuilles, couleur de la
feuilles et du pétiole, nombre de lobes, floraison, orientation
du pétiole,…)
• 9 mois ( couleur externe de la tige, couleur du cortex,
distance entre les nœuds).
• A la récolte (couleur de la pulpe, texture de l’épiderme)
 Etat sanitaire de la plante

www.iita.orgA member of CGIAR consortium
Couleur des feuilles (feuille non développée et 1re feuille développée)
IDENTIFICATION DES VARIETES
Descripteurs à 3 mois
Vert clair (eg 92/0326)
Vert sombre (eg TME 419)
Vert pourpre (eg 96/0023)
Pourpre (eg ESCAPP30)

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IDENTIFICATION DES VARIETES
92/0326)
TME 419
95/0109, 96/0023, 96/1414, 8034
ESCAPP30

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Pilosité des feuilles apicales (feuille non développée et 1re feuille
développée)
IDENTIFICATION DES VARIETES
Descripteurs 3 mois
Feuilles apicales non développées
velues, soyeux au toucher (ex:
92/0326)
Feuilles apicales non développées
Lisses et brillantes (Ex TME: 419)

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Couleur du petiole
Descripteurs 6 mois
IDENTIFICATION DES VARIETES

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Couleur de la feuille
IDENTIFICATION DES VARIETES
Descripteurs 6 mois
96/1414
92/0326
ESCAPP30

www.iita.orgA member of CGIAR consortium
IDENTIFICATION DES VARIETES
Nombre de lobe foliaires
Descripteurs 6 mois

www.iita.orgA member of CGIAR consortium
IDENTIFICATION DES VARIETES
Forme lobe centrale
Descripteurs 6 mois
5= 96/1414, 92/0057,92/0067, 95/0109
1= 96/0023
2= 92/0326

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Droit
Zig-zag
95/0109, 95/0211
Forme de la tige
Descripteurs 9 mois
IDENTIFICATION DES VARIETES

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Descripteurs a la récolte
IDENTIFICATION DES VARIETES
Couleur de la pulpe Texture de l’ épiderme

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Etat sanitaire de la plante
Quelle est la couleur de ces feuilles apicales?
IDENTIFICATION DES VARIETES

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92/0326 (Abui Pkwem)
Couleurs feuilles apicales Non Dev. : Vert clair
Couleurs feuilles apicales Dev. : Vert clair
Couleur de la feuille: Vert clair
Pilosité de l’apex: très poilu et soyeux
Couleur du pétiole: Pourpre
Pigmentation du pétiole: Entière
Forme du lobe centrale: Elliptique lancéolée
Forme de la tige : droit
IDENTIFICATION DES VARIETES

www.iita.orgA member of CGIAR consortium
96/1414 (Nkoh Menzui)
Couleurs feuilles apicales: Pourpre
Couleurs feuilles apicales Dev. : Vert Pourpre
Couleur de la feuille: Vert sombre
Pilosité de l’apex: Lisse
Couleur du pétiole: Pourpre
Pigmentation du pétiole: Entière
Forme du lobe centrale: lancéolée
Forme de la tige : droit
IDENTIFICATION DES VARIETES

www.iita.orgA member of CGIAR consortium
95/0109
Couleurs feuilles apicales: Vert pourpre
Couleur de la feuille: Vert sombre
Pilosité de l’apex: Lisse
Couleur du pétiole: rouge verdâtre
Pigmentation du pétiole: Partielle
Forme du lobe centrale: lancéolée
Forme de la tige : Zig-Zag
IDENTIFICATION DES VARIETES

www.iita.orgA member of CGIAR consortium
8034
Couleurs feuilles apicales: Pourpre
Couleur de la feuille: Vert Pourpre
Pilosité de l’apex: Lisse
Couleur du pétiole: vert clair avec
coloration rougeâtre aux points d’attache
tige et feuille
Pigmentation du pétiole: Partielle
Forme du lobe centrale: lancéolée
Forme de la tige : droit
IDENTIFICATION DES VARIETES

www.iita.orgA member of CGIAR consortium
TME 419
Couleurs feuilles apicales: Vert sombre
Couleur de la feuille: Vert Sombre
Pilosité de l’apex: Lisse
Couleur du pétiole: vert rougeâtre
Pigmentation du pétiole: Partielle
Forme du lobe centrale: lancéolée
Forme de la tige : droit
IDENTIFICATION DES VARIETES

www.iita.orgA member of CGIAR consortium
IDENTIFICATION DES VARIETES
96/0023
Couleurs feuilles apicales: Pourpre
Couleur de la feuille: Vert Pourpre
Pilosité de l’apex: poilu et soyeux
Couleur du pétiole: vert rougeâtre
Pigmentation du pétiole: Partielle
Forme du lobe centrale: Ovoide
Forme de la tige : droit

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Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

The document discusses the Technical Centre for Agricultural and Rural Cooperation (CTA) and its work in supporting agricultural and rural development in Africa. CTA is an EU-ACP institution focused on strengthening partnerships between Europe and Africa. The document outlines CTA's vision of a vibrant, modern, sustainable and inclusive agriculture in Africa. It also discusses the African Union's Agenda 2063 goals of transforming African economies and empowering women and youth through increased investment in agriculture, value addition, employment, science, technology and innovation. The role of African women scientists and innovators in achieving these development goals is highlighted.

Présentation du Secrétaire Général du Ministère malgache de l'Industrie et du...

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Présentation du Dr. Nicola Francesconi

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Présentation des problèmes et recommandations des coopératives

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Outcomes of the 3rd Workshop 'Creating Impact with Open Data in Agriculture a...

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Modèles d'affaires inclusifs : les domaines de priorités communes

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Filières inclusives : approche et méthodologie

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Filières inclusives : Moteur des filières inclusives

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Filières inclusives : Analyser les modèles d'affaire

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Filières inclusives : Bâtir à partir des entreprises, le rôle des acheteurs

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Filières inclusives : concept et définitions

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Cameroon agriculture-nutrition nexus: actors and key intervention areas

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Chaine de valeur de manioc et sécurité alimentaire en Afrique centrale

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Intégration des jeunes dans la chaine de valeur du manioc par le biais des so...

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Jeunes et culture du manioc en zone de fôret

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Chefs pour le développement

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Cassava value chain for improved nutrition in Central Africa

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Public policy support for commercialisation of cassava industry in Central Af...

Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA)

Plus de Technical Centre for Agricultural and Rural Cooperation ACP-EU (CTA) (20)

Programme: Value Chain Workshop at #PWA2017

Programme: Youth Entrepreneurship High Level Panel

African Women in Science and Innovation and Agenda 2063: The Africa we Want

Présentation du Secrétaire Général du Ministère malgache de l'Industrie et du...

Présentation du Dr. Nicola Francesconi

Présentation des problèmes et recommandations des coopératives

Outcomes of the 3rd Workshop 'Creating Impact with Open Data in Agriculture a...

Modèles d'affaires inclusifs : les domaines de priorités communes

Filières inclusives : approche et méthodologie

Filières inclusives : Moteur des filières inclusives

Filières inclusives : Analyser les modèles d'affaire

Filières inclusives : Bâtir à partir des entreprises, le rôle des acheteurs

Filières inclusives : concept et définitions

Cameroon agriculture-nutrition nexus: actors and key intervention areas

Chaine de valeur de manioc et sécurité alimentaire en Afrique centrale

Intégration des jeunes dans la chaine de valeur du manioc par le biais des so...

Jeunes et culture du manioc en zone de fôret

Chefs pour le développement

Cassava value chain for improved nutrition in Central Africa

Public policy support for commercialisation of cassava industry in Central Af...

Identification des différentes variétés de manioc

1. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES DIFFÉRENTES VARIÉTÉS DE MANIOC

2. www.iita.orgA member of CGIAR consortium DESCRIPTEURS D’IDENTIFICATION DES VARIÉTÉS DE MANIOC

3. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES VARIETES

4. www.iita.orgA member of CGIAR consortium Objectif IDENTIFICATION DES VARIETES • Etablir la différence entre deux variétés de manioc en utilisant des descripteurs d’identification

5. www.iita.orgA member of CGIAR consortium POURQUOI CONNAITRE L’IDENTITE D’UNE VARIETE? IDENTIFICATION DES VARIETES • Satisfaire les besoins des agro industries (cas de NESTLE) • Différencier les variétés «douces » des variétés «amères»? • Différencier les variétés biofortifiées? • Définir le produit de transformation le plus adapté ?

6. www.iita.orgA member of CGIAR consortium Méthodes morphologiques IDENTIFICATION DES VARIETES • Feuilles (Pilosité, couleur, forme, nombre de lobes,…) • Tiges (Couleur, ramification,…) • Racines (Couleur, forme,…) Méthodes analytiques basées sur l’ADN • Simple Sequence Repeat (SSR) • Genotyping-by-sequencing (GBS) • Single nucleotide polymorphisms (SNP)

7. www.iita.orgA member of CGIAR consortium Methodes morphologiques IDENTIFICATION DES VARIETES  Age de la plante • 3 mois ( Couleur et pubescence des feuilles apicales) • 6 mois (Forme du lobe centrale de la feuilles, couleur de la feuilles et du pétiole, nombre de lobes, floraison, orientation du pétiole,…) • 9 mois ( couleur externe de la tige, couleur du cortex, distance entre les nœuds). • A la récolte (couleur de la pulpe, texture de l’épiderme)  Etat sanitaire de la plante

8. www.iita.orgA member of CGIAR consortium Couleur des feuilles (feuille non développée et 1re feuille développée) IDENTIFICATION DES VARIETES Descripteurs à 3 mois Vert clair (eg 92/0326) Vert sombre (eg TME 419) Vert pourpre (eg 96/0023) Pourpre (eg ESCAPP30)

9. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES VARIETES 92/0326) TME 419 95/0109, 96/0023, 96/1414, 8034 ESCAPP30

10. www.iita.orgA member of CGIAR consortium Pilosité des feuilles apicales (feuille non développée et 1re feuille développée) IDENTIFICATION DES VARIETES Descripteurs 3 mois Feuilles apicales non développées velues, soyeux au toucher (ex: 92/0326) Feuilles apicales non développées Lisses et brillantes (Ex TME: 419)

11. www.iita.orgA member of CGIAR consortium Couleur du petiole Descripteurs 6 mois IDENTIFICATION DES VARIETES

12. www.iita.orgA member of CGIAR consortium Couleur de la feuille IDENTIFICATION DES VARIETES Descripteurs 6 mois 96/1414 92/0326 ESCAPP30

13. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES VARIETES Nombre de lobe foliaires Descripteurs 6 mois

14. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES VARIETES Forme lobe centrale Descripteurs 6 mois 5= 96/1414, 92/0057,92/0067, 95/0109 1= 96/0023 2= 92/0326

15. www.iita.orgA member of CGIAR consortium Droit Zig-zag 95/0109, 95/0211 Forme de la tige Descripteurs 9 mois IDENTIFICATION DES VARIETES

16. www.iita.orgA member of CGIAR consortium Descripteurs a la récolte IDENTIFICATION DES VARIETES Couleur de la pulpe Texture de l’ épiderme

17. www.iita.orgA member of CGIAR consortium Etat sanitaire de la plante Quelle est la couleur de ces feuilles apicales? IDENTIFICATION DES VARIETES

18. www.iita.orgA member of CGIAR consortium 92/0326 (Abui Pkwem) Couleurs feuilles apicales Non Dev. : Vert clair Couleurs feuilles apicales Dev. : Vert clair Couleur de la feuille: Vert clair Pilosité de l’apex: très poilu et soyeux Couleur du pétiole: Pourpre Pigmentation du pétiole: Entière Forme du lobe centrale: Elliptique lancéolée Forme de la tige : droit IDENTIFICATION DES VARIETES

19. www.iita.orgA member of CGIAR consortium 96/1414 (Nkoh Menzui) Couleurs feuilles apicales: Pourpre Couleurs feuilles apicales Dev. : Vert Pourpre Couleur de la feuille: Vert sombre Pilosité de l’apex: Lisse Couleur du pétiole: Pourpre Pigmentation du pétiole: Entière Forme du lobe centrale: lancéolée Forme de la tige : droit IDENTIFICATION DES VARIETES

20. www.iita.orgA member of CGIAR consortium 95/0109 Couleurs feuilles apicales: Vert pourpre Couleur de la feuille: Vert sombre Pilosité de l’apex: Lisse Couleur du pétiole: rouge verdâtre Pigmentation du pétiole: Partielle Forme du lobe centrale: lancéolée Forme de la tige : Zig-Zag IDENTIFICATION DES VARIETES

21. www.iita.orgA member of CGIAR consortium 8034 Couleurs feuilles apicales: Pourpre Couleur de la feuille: Vert Pourpre Pilosité de l’apex: Lisse Couleur du pétiole: vert clair avec coloration rougeâtre aux points d’attache tige et feuille Pigmentation du pétiole: Partielle Forme du lobe centrale: lancéolée Forme de la tige : droit IDENTIFICATION DES VARIETES

22. www.iita.orgA member of CGIAR consortium TME 419 Couleurs feuilles apicales: Vert sombre Couleur de la feuille: Vert Sombre Pilosité de l’apex: Lisse Couleur du pétiole: vert rougeâtre Pigmentation du pétiole: Partielle Forme du lobe centrale: lancéolée Forme de la tige : droit IDENTIFICATION DES VARIETES

23. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES VARIETES 96/0023 Couleurs feuilles apicales: Pourpre Couleur de la feuille: Vert Pourpre Pilosité de l’apex: poilu et soyeux Couleur du pétiole: vert rougeâtre Pigmentation du pétiole: Partielle Forme du lobe centrale: Ovoide Forme de la tige : droit

24. www.iita.orgA member of CGIAR consortium IDENTIFICATION DES VARIETES