Crop Genebank Knowledge Base

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Import/export of cowpea germplasm

Contributors to this section: IITA, Nigeria (M. Ayodele, L. Kumar).

Cowpea is a crop under the mandate of IITA. It is very important to remember that an International Phytosanitary Certificate is always required for any plant germplasm exchange.

The requirements of countries that request and receive seed from IITA Headquarters located in Nigeria have been collected from the permits granted to IITA for exportation of cowpea experimental seed. It indicates specific requirements and the pathogens and pest that seed should be free of when it is imported to a given country.

Please consider that:

The information received from the same country may vary from a permit to another; therefore the latest has been considered the valid one.
It is always advisable before sending a shipment to contact the consignee in the recipient country to confirm the information reported in this table.

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Safe transfer of cowpea germplasm

Contributors to this section: IITA, Nigeria (M. Ayodele, L. Kumar).

IITA, as one of the 15 CGIAR centers, has the mandate for care and maintenance of cowpea germplasm.
Information is included on:

Import and export requirements.
Technical guidelines for the safe movement of germplasm and detection of relevant pathogens and pests.
Best practices in place at IITA.

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Guidelines for safe transfer of cowpea germplasm

Contributors to this section: IITA, Nigeria (M. Ayodele, L. Kumar).

Technical Guidelines for the safe transfer of germplasm and protection of CGIAR Germplasm Banks: IITA

Seed Crops

Cowpea Vigna unguiculata (L.) Walp. (Syn. Vigna sinensis)

Viruses

Cowpea mosaic virus(CpMV)

Blackeye cowpea mosaic virus (BICMV)

Cowpea severe mosaic virus (CpSMV)

Cowpea aphid-borne mosaic virus (CAMV, CABMV)

Cowpea mottle virus (CPMoV)

Cowpea golden mosaic virus (CGMV)

Cowpea yellow mosaic virus (CYMV)

Bacteria

Xanthomonas axonopodis pv. vignicola (Burkholder 1944) Vauterin et al. 1995
Xanthomonas axonopodis pv. Vignae

Pseudmonas syringae pv phaseolicola

Pseudmonas syringae pv syringae

Fungi

Colletotrichum lindemuthianum, Glomerella lindemuthiana Shear [teleomorph

Cercospora canescens

Cercospora cruenta

Fusarium oxysporum f.sp. tracheiphilum (E.F.Sm.) Snyder & H.N. Hansen

Sphaceloma sp.

Colletotrichum truncatum(Schwein.) Andrus & W.D. Moore, 1934

Uromyces appendiculatus (Pers.) Unger (1816)

Entyloma vignae

Septoria vignae Henn.

Choanephora cucurbitarum

Nematodes

Meloidogyne arenaria

Rotylenchulus reniformis

Insects

Aphis craccivora

Maruca vitrata

Callosobruchus spp

Empoasca spp.

Ophiomyia phaseoli

Megalurothrips sjostedti

Parasitic plants

Striga gesnerioides

Striga asiatica

Striga hermonthica

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Best practices for safe transfer of cowpea germplasm

Contributors to this section: IITA, Nigeria (M. Ayodele, L. Kumar).

Seed Health Tests and Procedures

Protocols developed for the detection and identification of plant pathogens in the germplasm unit.

The general procedure for testing seeds and plant vegetative parts for the presence of pathogens is presented in this diagram below. Except in some specific cases requiring some special media or modified media for culturing