IITA Accessions 2

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Accession TVu-6


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Passport data

Collection: Cowpea collection Collection
Accession name: TVu-6 Accesion name
Accession number: 6 Accession number
Country of origin: NGA - Nigeria Country of origin
Cultivar name: MALA Cultivar name
Available: Yes Is accession available in genebank
Collection: IITACOW - Cowpea collection Collection
GRIN taxa: GRIN:41647 Taxonomy code as used in GRIN
Taxonomy number: 100151 SINGER Taxonomy number
FAO in Trust: Yes FAO in Trust
In Core: No In Core collection
Annex 1: Yes Annex1
Ddigital Object Identifier: 10.18730/W4J* A unique alphanumeric string assigned by a registration agency (the International DOI Foundation) to identify content and provide a persistent link to its location on the Internet.
DuplSite: NOR051 DuplSite
Storage: Seed collection; Medium term; Long term Storage
Acceurl: http://my.iita.org/accession2/accession/TVu-6 Acceurl
In Mini Core: No In Mini Core
Collection Date (String): 19711018 String representation of collection date. Format YYYYMMDD. Month and date are optional
Genus: Vigna Genus
Species: unguiculata Species
Species authority: (L.) Walp. Species authority
Subtaxa authority: (L.) Walp. Subtaxa authority
Location: MANR ,NIGERIA Location
Biological status of accession: 410 - Breeding / Research material Biological status
Collector Institution: MANR, NIGERIA Collector Institution

Cowpea characterization

Days to first flowering: 42.0 days Days from planting to the notice of first flowering
Days to first ripe pod: 65.0 days Days from planting to first ripe pod
Pattern of pigmentation on plant: Extensive Pattern of pigmentation on plant
Pattern of pigmentation on flower: Wing & Standard petal has pigmented margin Pattern of pigmentation on flower
Pattern of pigmentation on green pod: None Pattern of pigmentation on green pod
Plant growth habit: Intermediate:most lower branches touch the ground Plant growth habit
Twining tendency: None Twining tendency
Growth vigor: Vigorous - Height < 37.5cm and Width < 75cm Growth vigor
Determinacy: Indeterminate main stem Determinacy
No of main branches: 4.0 No of main branches
No of main stem nodes: 11.0 No of main stem nodes
Peduncle length : Long - Average length > 5cm Peduncle length
Raceme position: In upper leaf layers Raceme position
Terminal leaflet shape: Sub-Globose Terminal leaflet shape
Terminal leaflet length : 105.0 cm Terminal leaflet length
Terminal leaflet width : 60.0 cm Terminal leaflet width
No of pods/peduncle: 2 to 3 No of pods/peduncle
Pod attachment to peduncle: Angle of 30° to 90° Pod attachment to peduncle
Pod shape: Curved Pod shape
Pod length: 152.0 mm Pod length
Pod width : 7.0 mm Pod width
No of locules/pod: 12.0 No of locules/pod
Eye pattern: N40:Narrow Eye(Hilum ring).Eye fills the narrow groove(G.) around hilum(H.) & spills out of this G in front of the H for a short distance & presents an indistinct margin in front Eye pattern
Eye pattern code: N40 Eye pattern code
Eye color: T20:dark tan Eye color
Eye color code: T20 Eye color code
Testa texture: R:Rough Testa texture
Seed size: 2150mg/10 seeds Seed size
Seed length : Short - slightly longer than it is wide Seed length
Seed thickness: Intermediate - thickness slightly less than the width Seed thickness
Seed Crowding in pod: Semi-Crowder:slight indentation of seed ends Seed Crowding in pod

Cowpea Evaluation

Incidence of Leaf Spot (C. Canescens): None Incidence of Leaf Spot (C. Canescens)
Incidence of Leaf Spot (C. Cruenta): Very light:occasional scattered leaf spots Incidence of Leaf Spot (C. Cruenta)
Incidence of Bacterial Pustule: None Incidence of Bacterial Pustule
Incidence of Bacterial Blight: None Incidence of Bacterial Blight
Incidence of Target Spot: None Incidence of Target Spot
Incidence of Rust: Some Incidence of Rust
Incidence of Cowpea Mosaic Virus: Yellow mosaic Incidence of Cowpea Mosaic Virus
Incidence of Anthracnose: Coalesced lesions Incidence of Anthracnose
Incidence of Other Diseases: Nothing Incidence of Other Diseases
Number of pods affected by Maruca : 262 Number of pods affected by Maruca
Number of pods unaffected by Maruca: 194 Number of pods unaffected by Maruca
Number of pods affected by Laspeyresia: 155 Number of pods affected by Laspeyresia
Number of pods unaffected by Laspeyresia: 141 Number of pods unaffected by Laspeyresia
Percentage of Sulphur (combustion & titration): 0.100000001490116 Percentage of Sulphur (combustion & titration)
Percentage of Nitrogen (colorimetric analysis): 4.46999979019165 Percentage of Nitrogen (colorimetric analysis)
Thrips screening: TRUE Thrips screening
Pod bugs screening: TRUE Pod bugs screening
IITA Accession - ver. 2  
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