Cowpea Descriptors 3.1 Country of characterization and prelim evaluation NOT AVAILABLE 3.2 Site (Research institute) 3.3 Name of person in charge of characterization NOT AVAILABLE 3.4 Sowing date NOT AVAILABLE 3.4.1 Day 3.4.1 NOT AVAILABLE 3.4.2 Month 3.4.2 NOT AVAILABLE 3.4.3 Year 3.4.3 NOT AVAILABLE 3.5 Harvest date NOT AVAILABLE 3.5.1 Day 3.5.1 NOT AVAILABLE 3.5.2 Month 3.5.2 NOT AVAILABLE 3.5.3 Year 3.5.3 NOT AVAILABLE 4.1 Vegetative NOT AVAILABLE 4.1.1 Growth habit Evaluated in the 6th week after sowing 1-Acute erect (branches form acute angles with main stem) 2-Erect (branching angle less acute than above) 3-Semi-erect (branches perpendicular to main stem, but not touch ground) 4-Intermediate (most lower branches touch the ground) 5-Semi?rostrate (main stem reaches 20 or more centimeters 6-Prostrate (plants flat on ground; branches spread several meters) 7-Climbing 4.1.2 Gowth pattern NOT AVAILABLE 1-Determinate (apical bud of main stem reproductive) 2-Indeterminate 4.1.3 Twinning tendency NOT AVAILABLE 0-None 3-Slight 5-Intermediate 7-Pronounced 4.1.4 Plant pigmentation Recorded for stem, branches, petioles and peduncles in the 6th week after sowing 0-None 1-Very slight 3-Moderate at the base and tips of petioles 5-Intermediate 7-Extensive 9-Solid 4.1.5 Terminal leaflet shape Recorded for the terminal leaflet of a young, mature leaf in the 6th week after sowing 1-Globose 2-Sub?lobose 3-Sub?astate 4-Hastate 4.1.6 Plant hairiness Of stems, leaves and pods 3-Glabrescent 5-Short appressed hairs 7-Pubescent to hirsute 4.2 Inflorescence and fruit NOT AVAILABLE 4.2.1 Days to flowering From sowing to stage when 50% of plants have begun to flower. Recorded for plants with the same sowing date, at the same location, each year 4.2.2 Raceme position Recorder when peduncles have reached full length 1-Mostly above canopy 2-In upper canopy 3-Throughout canopy 4.2.3 Days to first mature pods From sowing to stage when 50% of plants have mature pods 4.2.4 Pod attachment to peduncle Recorded when pods are full grown 3-Pendant 5-30 ?90o down from erect 7-Erect 4.2.5 Immature pod pigmentation Pattern of pigment distribution on full grown immature pods 0-None 1-Pigmented tip 2-Pigmented sutures 3-Pigmented valves, green sutures 4-Splashes of pigment 5-Uniformly pigmented 6-Other (specify in the notes descriptor, 11) 4.2.6 Pod curvature Of mature pods 0-Straight 3-Slightly curved 5-Curved 7-Coiled 4.2.7 Pod length [cm] Mean of the 10 longest mature pods from 10 randomly selected plants 4.2.8 Number of locules per pod Mean number of the 10 pods measured for length in 4.2.7 4.3 seed NOT AVAILABLE 4.3.1 Seed Shape NOT AVAILABLE 1-Kidney 2-Ovoid 3-Crowder 4-Globose 5-Rhomboid 4.3.2 Testa texture NOT AVAILABLE 1-Smooth 3-Smooth to rough 5- Rough (fine reticulation) 7- Rough to wrinkled 9-Wrinkled (coarse folds on the testa) 4.3.3 Eye pattern The shape of the pigment pattern which surrounds the hilum. The ?ront?of the hilum is the non-micropylar end. Diagrams illustrating the following descriptor states are available from the Genetic Resources Unit at International Institute of Tropical Agriculture (IITA); Ibadan, Nigeria (where a large number of sub?ivisions of each state are in use) 0-Absent (Group A1) 1-Very Small (Group A) 2-Kabba group (Eye fills the narrow groove all around the hilum, and the body has some form of speckling. A blue halo is also found around the hilum) (Group K) 3-Narrow eye (Hilum Ring. Eye fills the narrow groove around the hilum and spills out of this groove in front of the hilum for a short distance and has an indistinct front margin) (Group N) 4-Small eye (eye has a distinct margin, but is smaller than Holstein group) (Group E) 5-Holstein group (eye encircles the back of the hilum in a narrow ring, widens at the sides, and then extends margin of the eye is very distinct) (Group H) 6-Watson group (eye encircles the back of the hilum as a narrow ring, widens at the sides and spills over the non ?micropylar end of the seed with an indistinct margin.) (Group W) 7-Self coloured (eye covers entire seed) (Group S) 8-Other (specify in the Notes descriptor, 11) 4.3.4 Eye colour NOT AVAILABLE 0-Eye absent (white, cream) (Group W2) 1-Brown splash or gray (Group W) 10-Other (specify in the Notes descriptor, 11) 2-Tan Brown (Group T) 3-Red (Group R) 4-Green (Group G) 5-Blue to black (Group B) 6-Blue to black spots or mottle (Group X) 7-Speckled (even distribution of fine speckling) (Group S) 8-Mottled (dark brown pigment typically Absent around hilum) (Group M) 9-Mottled and speckled (Victor) (Group V) 4.3.5 Seed weight [mg] Weight of 100 seeds moisture content 12% 5.1 Country of further characterization and evaluation NOT AVAILABLE 5.2 Site 2 (Research institute) 5.3 Name of person in charge of characterization NOT AVAILABLE 5.4 Sowing date NOT AVAILABLE 5.4.1 Day NOT AVAILABLE 5.4.2 Month NOT AVAILABLE 5.4.3 Year NOT AVAILABLE 5.5 Harvest date NOT AVAILABLE 5.5.1 Day 2 NOT AVAILABLE 5.5.2 Month 2 NOT AVAILABLE 5.5.3 Year 2 NOT AVAILABLE 6.1 Vegetative NOT AVAILABLE 6.1.1 Hypocotyl length [mm] Mean of 10 plants 6.1.2 Leaf colour ntensity of green colour 3-Pale Green 5-Intermediate green 7-Dark green 6.1.3 Leaf marking Presence/absence of V-mark on leaflets 0-Absent 1-Present 6.1.4 Terminal leaflet length [mm] Terminal leaflet whose shape was recorded in 4.1.5 6.1.5 Terminal leaflet width [mm] The widest dimension of the terminal leaflet whose shape was recorded in 4.1.5 6.1.6 Leaf texture NOT AVAILABLE 1-Cariaceous 2-Intermediate 3-Membranous 6.1.7 Stipule length [mm] NOT AVAILABLE 6.1.8 Stipule width [mm] NOT AVAILABLE 6.1.9 Number of main branches The branches whose origin is in the leaf axils on the main stem; recorded in the 8th week after sowing. Mean of 10 randomly selected plants 6.1.10 Number of nodes on main stem Recorded 3 ?4 weeks after sowing. Mean of 10 randomly selected plants 6.1.11 Plant vigour Based on plant width and height 3 ?4 weeks after sowing 3-Non?igorous (height less than 37 cm and width less than 75 cm 5-Intermediate (height greater than 37cm or width greater than 75 cm 7-Vigorous (height greater than 37 cm and width greater than 75 cm) 9-Very vigorous (height greater than 50 cm and width greater than 1 m) 6.1.12 Leaf?tem ratio Weight of leaves divided by weight of other parts of shoot 6.1.13 Percentage dry weight Percentage of dry matter in 500 g sample of green plant 6.1.14 Yield of green matter Average yield in grams of 10 randomly selected plants weighed at 50% flowering 6.1.15 Capacity for re-growth Weight of green matter in grams at 50% flowering after the accession has been cut at six week stage 6.1.16 In vitro dry matter digestibility Digestibility of green fodder at 50% flowering 6.2 Inflorescence and fruit NOT AVAILABLE 6.2.1 Flowering pigment pattern Of newly opened flowers 0-Not pigmented (white) 1-Wing pigmented; standard with light V-shaped pattern of pigment at top center 2-Pigmented margins on wing and standard 3-Wing pigmented; standard lightly pigmented 4-Wing with pigmented upper margin; standard is pigmented 5-Completely pigmented 6-Other (specify in the Notes descriptor, 11) 6.2.2 Flower colour NOT AVAILABLE 1-White 2-violet 3-Mauve?ink 4-Other (specify in the Notes descriptor, 11) 6.2.3 Standard length [mm] A measure of flowers size; the mean length of 10 freshly opened, randomly selected standard petals 6.2.4 Calyx lobe length [mm] NOT AVAILABLE 6.2.5 Duration of flowering Days from first flowers to stage when 50% of plants have finished flowering 6.2.6 Number of racemes per plant Mean of 10 randomly selected plants 6.2.7 Peduncle length [mm] Recorded when peduncles have grown full length. Mean length of 10 peduncles, one from each of 10 randomly selected plants 6.2.8 Number of pods per peduncle Recorded under total insect control. Mean of 10 randomly selected peduncles 6.2.9 Number of pods per plant Mean number of mature pods from 10 randomly selected plants 6.2.10 Pod width [cm] Mean width of the 10 pods measured for length in 4.2.10 6.2.11 Pod wall thickness NOT AVAILABLE 3-Thin 5-Intermediate 7-Thick 6.2.12 Pod colour Of mature pod 1-Pale tan or straw 2-Dark tan 3-Dark brown 4-Black or dark purple 5-Other (specify in the Notes descriptor, 11) 6.3 Seed NOT AVAILABLE 6.3.1 Seed length [mm] Mean of 10 mature seeds excluding those from the extremities of pods 6.3.2 Seed width [mm] Mean width from hilum to keel of the 10 seeds measured for length in 6.3.1 6.3.3 Seed thickness [mm] Mean thickness of the 10 seeds measured for length in 6.3.1; measured perpendicular to length and width 6.3.4 Seed crowding A visual estimate of seed compression, being indicative of spacing within the pod 0-Not crowded (no compression of seed ends) 3-Semi?rowded (slight flattering of seed ends) 5-Crowded (marked compression of seed ends 7-Extremely crowded (seed width greater than seed length) 6.3.5 Splitting of testa NOT AVAILABLE 0-Absent 1-Present (testa split exposing cotyledons) 6.3.6 Attachment of testa NOT AVAILABLE 0-Testa not firmly attached to seed 1-Testa firmly attached to seed 6.3.7 Percentage seed protein NOT AVAILABLE 7.1 Low temperature NOT AVAILABLE 7.2 High temperature NOT AVAILABLE 7.3 Drought NOT AVAILABLE 7.4 High soil moisture NOT AVAILABLE 8.1 Pests NOT AVAILABLE 8.1.1 Acanthomia horrida, Acanthomia tomentosicollis, Anoplocnemis curvipes, Riptortus dentipes Coried bugs 8.1.2 Striped bean weevil Alcidodes leucogrammus 8.1.3 Cowpea aphid Aphis craccivora 8.1.4 Pea aphid Aphis fabae 8.1.5 Cowpea storage weevil Callosobruchus chinensis 8.1.6 Cowpea curculio Chalcodermus aeneus 8.1.7 Beetle Chrysolagria spp. 8.1.8 Pod borer Cydia ptychora 8.1.9 Leaf hoppers Empoasca Kerri 8.1.10 Epilachna beetles Epilachna spp. 8.1.11 Lima bean pod borer Etiella zinckenella 8.1.12 African bollworm Heliothis armigera 8.1.13 Beetle Lagria villosa 8.1.14 Legume pod borer Maruca testulalis 8.1.15 Adzuki pod borer Matsumuraeses phaseoli 8.1.16 Striped foliage beetle Medythia quaterna 8.1.17 Flower thrips Megalurothrips sjostedti 8.1.18 Blister beetle Mylabris spp. 8.1.19 Green stink bug Nezara viridula 8.1.20 Foliage beetles Ootheca bennigseni Ootheca mutabilis 8.1.21 Pod weevil Piezotrachelus varius 8.1.22 Foliage thrips Sericothrips occipitalis 8.1.23 Egyptian leaf worm Spodoptera littoalis 8.1.24 Others (specify in the Notes descriptor, 11) 8.2 Fungi NOT AVAILABLE 8.2.1 Ascochyta blight Ascochyta phaseolorum Sacc. 8.2.2 Cercospora leaf spot Cercospora cruenta Sacc. 8.2.3 Lamb? tail pod tot Choanephora spp. 8.2.4 Brown blotch, (Schw.) Colletotrichum truncatum Andrus & Moore 8.2.5 Anthracnose Collectrichum Lindemuthianum 8.2.6 Target leaf spot Corynespora cassiicola 8.2.7 Scab Elsino?haseoli Jenkins 8.2.8 Powdery mildew Erysiphe polygoni DC 8.2.9 Fusarium wilt Fusarium oxysporum Shlect 8.2.10 Fusarium collar and stem rot, (Mart) Fusarium solani Appel & Wollenw 8.2.11 Pink rust Phakosora pachyrizi Syd. 8.2.12 Phytophtora stem rot, (Leb. & Cohn) Phytophthora cactorum Schroet 8.2.13 Leaf smut Protomycopsis phaseoli 8.2.14 Pythium stem rot, (Edson) Pythium aphanidermatum Fritz. 8.2.15 Seedling mortality, (Edson) Pythium aphanidermatum Fritz. 8.2.16 Seedling mortality Rhizoctonia solani Kuehn 8.2.17 Web blight Rhizoctonia solani Kuehn 8.2.18 Sclerotium stem rot Sclerotium rolfsii Sacc. 8.2.19 Septoria leaf spot Septonia vignae Septoraia vignicola 8.2.20 False rust Synchytrium dolichi 8.2.21 Brown rust Uromyces appendiculatus 8.2.22 Veticillium wilt Verticillium albo?trum Reinke & Berth 8.2.23 Others (specify in the Notes descriptors, 11) 8.3 Bacteria NOT AVAILABLE 8.3.1 Bacterial light and canker Xanthomonas vignicola Burkh. 8.3.2 Others (specify in the Notes descriptor, 11) 8.4 Virus and microplasm NOT AVAILABLE 8.4.1 Cowpea aphid?orne mosaic NOT AVAILABLE 8.4.2 Cowpea banding mosaic NOT AVAILABLE 8.4.3 Cowpea chloritic mottle NOT AVAILABLE 8.4.4 Cowpea golden mosaic NOT AVAILABLE 8.4.5 Cowpea mild mottle NOT AVAILABLE 8.4.6 Cowpea mottle NOT AVAILABLE 8.4.7 Cowpea ringspot NOT AVAILABLE 8.4.8 Cowpea mosaic [severe] NOT AVAILABLE 8.4.9 Cowpea mosaic 2 [yellow] NOT AVAILABLE 8.4.10 Cucumber mosaic NOT AVAILABLE 8.4.11 Southern bean mosaic NOT AVAILABLE 8.4.12 Sunn?emp mosaic NOT AVAILABLE 8.4.13 Others (specify in the Notes descriptors, 11)