COWPEA Descriptor Site(s): S9 ------ Contains characteristic data on Cowpea (Vigna unguiculata) accessions. For additional information, contact Graves Gillaspie at the Plant Genetic Resources Conservation Unit (S-9), Griffin, GA 30223-1797, Phone: (770) 412-4777. Descriptor: APHID obtype: CHAR CGC: N Seedling resistance to aphid (Aphis craccivora) predation Code Definition ---- ---------- 3 Resistant 5 Intermediate 7 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 3 198 5 225 7 529 Descriptor: BLCMV obtype: CHAR CGC: N Resistance to blackeye cowpea mosaic virus Code Definition ---- ---------- 1 Resistant 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 2 Descriptor: CAMV obtype: CHAR CGC: N Resistance to cowpea aphid-borne mosaic virus Code Definition ---- ---------- 1 Immune 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 6 9 292 Descriptor: CANKER obtype: CHAR CGC: N Resistance to bacterial canker (Xanthomonas vignicola) Code Definition ---- ---------- 1 Highly Resistant 2 Highly Resistant 3 Moderately Resistant 4 Moderately Resistant 5 Moderately Susceptible 6 Moderately Susceptible 7 Moderately Susceptible 8 Highly Susceptible 9 Highly Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 16 4 4 7 7 2 7 5 8 8 6 3 3 6 2 9 102 Descriptor: CCMV obtype: CHAR CGC: N Resistance to cowpea chlorotic mosaic virus Code Definition ---- ---------- 1 Resistant 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 6 9 332 Descriptor: CMV obtype: CHAR CGC: N Resistance to cucumber mosaic virus Code Definition ---- ---------- 1 Resistant 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 2 9 339 Descriptor: CORE obtype: CHAR CGC: YES A flag to indicate the accession is part of the core subset Code Definition ---- ---------- Y Yes, the accession is part of the core collection Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- Y 720 Descriptor: CPMV obtype: CHAR CGC: N Resistance to cowpea mosaic virus Code Definition ---- ---------- 1 Immune 3 Hypersensitive 5 Resistant 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 63 5 60 9 806 3 58 Descriptor: DRYPODCOL obtype: CHAR CGC: N Color of dry fruiting pods Code Definition ---- ---------- 1 Straw 2 Green 3 Purple 4 Black 5 Speckled 6 Variable (inconsistent or changeable) 7 Mixed (two or more colors) 8 Brown Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 1651 4 3 6 81 2 426 5 21 7 12 3 80 Descriptor: FLOWERCOL obtype: CHAR CGC: N Flower color Code Definition ---- ---------- 1 White 2 Lavender 3 Purple 4 Yellow 5 Mixed (two or more colors) 6 Pink 7 Blue 9 Variable (inconsistent or changeable) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 326 3 710 5 1 2 1168 4 14 9 27 Descriptor: FUSARIUM obtype: CHAR CGC: N Resistance to fusarium wilt (Fusarium oxysporum) Code Definition ---- ---------- 1 Highly Resistant 2 Highly Resistant 3 Moderately Resistant 4 Moderately Resistant 5 Moderately Susceptible 7 Moderately Susceptible 9 Highly Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 80 4 1 7 10 2 19 5 20 9 7 3 21 Descriptor: LEAFSHAPE obtype: CHAR CGC: YES Leaf shape Code Definition ---- ---------- 1 Globose 2 Hastate 3 Sub-globose 4 Sub-hastate 5 Strip 6 Ovate-lanceolate (arrowhead shape, long taper from petiole) 7 Mixed (two or more leaf shapes) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 1 3 332 5 4 2 100 4 21 7 1 Descriptor: MATURITY obtype: NUMERIC CGC: N Number of days to plant maturity Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 40.00 - 59.00 28 97.00 - 116.00 328 154.00 - 173.00 70 59.00 - 78.00 475 116.00 - 135.00 134 173.00 - 192.00 50 78.00 - 97.00 907 135.00 - 154.00 46 192.00 - 211.00 28 Descriptor: MBB obtype: CHAR CGC: N Resistance to mexican bean beetle Code Definition ---- ---------- Descriptor: PLANTHABIT obtype: CHAR CGC: N General plant growth habit Code Definition ---- ---------- 1 Erect 2 Semiprostrate 3 Prostrate 4 Mixed (two or more plant habits) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 1168 3 838 4 1 2 68 Descriptor: PLANTHGT obtype: NUMERIC CGC: N Plant height in centimeters Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 2.00 - 12.44 265 33.32 - 43.76 326 64.64 - 75.08 69 12.44 - 22.88 426 43.76 - 54.20 461 75.08 - 85.52 4 22.88 - 33.32 177 54.20 - 64.64 349 85.52 - 95.96 3 Descriptor: PODLENGTH obtype: NUMERIC CGC: N Pod length measured in centimeters Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 5.00 - 13.44 764 30.32 - 38.76 35 55.64 - 64.08 12 13.44 - 21.88 1347 38.76 - 47.20 32 64.08 - 72.52 2 21.88 - 30.32 95 47.20 - 55.64 11 72.52 - 80.96 3 Descriptor: PODPLACE obtype: CHAR CGC: N Position of pods relative to foliage Code Definition ---- ---------- 1 Above foliage 2 Foliage level 3 Below foliage Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 1211 2 1099 3 4 Descriptor: PODPOS obtype: CHAR CGC: N Position of mature fruiting pods relative to peduncle Code Definition ---- ---------- 1 Erect 2 Intermediate (30 to 60 degree) angle 3 Pendant Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 334 2 116 3 1866 Descriptor: PODSPEDUNC obtype: NUMERIC CGC: N Number of pods per peduncle Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.00 - 2.16 1497 4.48 - 5.64 17 7.96 - 9.12 1 2.16 - 3.32 491 5.64 - 6.80 4 9.12 - 10.28 0 3.32 - 4.48 229 6.80 - 7.96 1 10.28 - 11.44 0 Descriptor: SDCOATCOL obtype: CHAR CGC: N Primary seed coat color Code Definition ---- ---------- BL Black BR Brown BU Blue GR Green GY Grey MX Mixed (two or more colors) PU Purple RD Red TN Tan VR Variable WH White (Cream) YL Yellow Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- BL 126 GY 1 VR 262 BR 638 MX 15 WH 725 BU 75 RD 159 YL 3 GR 11 TN 117 Descriptor: SDPATCOLOR obtype: CHAR CGC: N Color of the seed pattern (eye or spots) Code Definition ---- ---------- BL Black BR Brown BU Blue GR Green GY Grey MX Mixed (two or more colors) PU Purple RD Red TN Tan VR Variable WH White (Cream) YL Yellow Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- BL 198 MX 16 TN 107 BR 238 PU 10 VR 48 BU 4 RD 21 WH 143 GR 4 Descriptor: SDPATTERN obtype: CHAR CGC: YES Mature seed pattern Code Definition ---- ---------- 1 Eye 2 Solid 3 Speckled (small spots) 4 Mottled (large spots) 5 Holstein (large patch) 6 Saddle-eye 7 Variable (inconsistent or changeable) 8 Mixed (two or more patterns) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 408 4 11 7 181 2 1152 5 156 8 7 3 281 6 23 Descriptor: SEEDPROD obtype: CHAR CGC: N Seed production or yield Code Definition ---- ---------- 1 High 2 Medium 3 Low 4 Very low Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 322 3 520 4 59 2 954 Descriptor: SEEDSHAPE obtype: CHAR CGC: YES Seed shape Code Definition ---- ---------- 1 Crowder, seed flat on both ends 2 Semicrowder, seed flat on one end and rounded on other 3 Noncrowder, seed rounded on both ends Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 306 2 962 3 884 Descriptor: SEEDSIZE obtype: CHAR CGC: N General seed size (California Blackeye No. 5 was used as the standard). Code Definition ---- ---------- 1 Large 2 Medium 3 Small 4 Variable (inconsistent or changeable) 5 Mixed (two or more seed sizes) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 229 3 442 5 17 2 1063 4 82 Descriptor: SEEDTEXT obtype: CHAR CGC: YES Seed Texture Code Definition ---- ---------- 1 Rough 2 Smooth 3 Wrinkled 4 Mixed (two or more textures) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 151 3 50 4 6 2 257 Descriptor: SEEDWEIGHT obtype: NUMERIC CGC: N Seed weight in grams/100 seeds at 25% moisture Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.84 - 6.55 272 17.97 - 23.68 525 35.10 - 40.81 1 6.55 - 12.26 2661 23.68 - 29.39 78 40.81 - 46.52 1 12.26 - 17.97 2421 29.39 - 35.10 6 46.52 - 52.23 1