COTTON Descriptor Site(s): COT ------ Contains characteristic data on Gossypium (Cotton) accessions. For additional information on the evaluations, contact A. E. Percival at USDA-ARS, 2765 F&B Road, College Station, TX 77841, ph (409) 260-9209 FAX: 409-260-9333. Descriptor: AREOA obtype: NUMERIC CGC: YES Arealometer A is a measure of the external surface area of the fibers of a given volume of material, expressed in square mm per cubic mm of fibrous material. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 289.00 - 363.89 162 513.67 - 588.56 258 738.34 - 813.23 0 363.89 - 438.78 532 588.56 - 663.45 67 813.23 - 888.12 0 438.78 - 513.67 765 663.45 - 738.34 10 888.12 - 963.01 1 Descriptor: AREOD obtype: NUMERIC CGC: YES The difference between specific area determined at high pressure (AH) and standard pressure (Areo A). D is presumably a measure of flatness of the fiber ribbon. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 3.00 - 13.78 155 35.34 - 46.12 343 67.68 - 78.46 13 13.78 - 24.56 492 46.12 - 56.90 145 78.46 - 89.24 10 24.56 - 35.34 577 56.90 - 67.68 48 89.24 - 100.02 9 Descriptor: BOLLLENGTH obtype: NUMERIC CGC: YES Length from base to tip in mm. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 26.00 - 32.11 5 44.33 - 50.44 98 62.66 - 68.77 21 32.11 - 38.22 26 50.44 - 56.55 57 68.77 - 74.88 16 38.22 - 44.33 71 56.55 - 62.66 26 74.88 - 80.99 3 Descriptor: BOLLWEIGHT obtype: NUMERIC CGC: YES Average weight in grams of a 10 boll sample Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.10 - 2.69 196 7.87 - 10.46 152 15.64 - 18.23 4 2.69 - 5.28 358 10.46 - 13.05 35 18.23 - 20.82 1 5.28 - 7.87 617 13.05 - 15.64 12 20.82 - 23.41 3 Descriptor: BOLLWIDTH obtype: NUMERIC CGC: YES Cross section at widest part in mm. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 16.00 - 18.00 6 22.00 - 24.00 37 28.00 - 30.00 55 18.00 - 20.00 8 24.00 - 26.00 82 30.00 - 32.00 36 20.00 - 22.00 13 26.00 - 28.00 83 32.00 - 34.00 4 Descriptor: CALYXHAIRS obtype: CHAR CGC: YES Calyx hairs. Code Definition ---- ---------- 1 Hairs absent 2 Very few hairs 3 Hairs present, poorly developed 4 Hairs present, well developed Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 157 3 11 4 6 2 14 Descriptor: COLETOT obtype: NUMERIC CGC: YES Resistance to Coletotrichum gossypii. (1 = Immune, 5 = Highly Susceptible) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.40 - 0.92 1 1.96 - 2.48 44 3.52 - 4.04 420 0.92 - 1.44 3 2.48 - 3.00 56 4.04 - 4.56 0 1.44 - 1.96 19 3.00 - 3.52 114 4.56 - 5.08 0 Descriptor: E1 obtype: NUMERIC CGC: YES The percentage elongation at break of the center 1/8 inch of the fiber bundle measured for T1 strength on the Stelometer. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 3.30 - 13.87 2171 35.01 - 45.58 0 66.72 - 77.29 0 13.87 - 24.44 6 45.58 - 56.15 1 77.29 - 87.86 0 24.44 - 35.01 0 56.15 - 66.72 0 87.86 - 98.43 1 Descriptor: EMBRYO obtype: NUMERIC CGC: YES Weight of embryo over weight of whole seed. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 48.00 - 49.89 3 53.67 - 55.56 8 59.34 - 61.23 10 49.89 - 51.78 2 55.56 - 57.45 6 61.23 - 63.12 4 51.78 - 53.67 9 57.45 - 59.34 9 63.12 - 65.01 1 Descriptor: EMBRYOIND obtype: NUMERIC CGC: YES Weight in grams of embryos per 100 seeds. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.06 - 2.03 16 3.97 - 4.94 126 6.88 - 7.85 9 2.03 - 3.00 111 4.94 - 5.91 128 7.85 - 8.82 0 3.00 - 3.97 159 5.91 - 6.88 67 8.82 - 9.79 0 Descriptor: EMBRYOOIL obtype: NUMERIC CGC: YES Percentage of oil by weight in 10 gram sample of dehulled seeds. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 37.00 - 40.00 4 46.00 - 49.00 27 55.00 - 58.00 1 40.00 - 43.00 8 49.00 - 52.00 9 58.00 - 61.00 1 43.00 - 46.00 13 52.00 - 55.00 8 61.00 - 64.00 1 Descriptor: FLOWERDATE obtype: NUMERIC CGC: YES Date of first flowers when grown at Phoenix, Arizona. Scored only for the Arizona collections of cotton. Code Definition ---- ---------- 1 6/17 10 10/23 11 NONFLOWERING 2 6/30 3 7/7 4 7/21 5 8/6 6 8/20 7 9/4 8 9/18 9 10/1 Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 10.00 - 10.14 21 10.42 - 10.56 0 10.84 - 10.98 0 10.14 - 10.28 0 10.56 - 10.70 0 10.98 - 11.12 124 10.28 - 10.42 0 10.70 - 10.84 0 11.12 - 11.26 0 Descriptor: FLOWERSCOR obtype: NUMERIC CGC: YES Flowering score of TX Collection. (0.0 = no flowers during growing season, 1.0 = flowers 8 weeks later than Upland var. 5.0 = flowers as early as Upland variety). Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.00 - 0.72 199 2.16 - 2.88 23 4.32 - 5.04 44 0.72 - 1.44 11 2.88 - 3.60 46 5.04 - 5.76 0 1.44 - 2.16 41 3.60 - 4.32 1 5.76 - 6.48 0 Descriptor: FUZZ obtype: NUMERIC CGC: YES Amount of fuzz on seeds (1.0 = heavy fuzz, 18.0 = naked seed) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 2.00 - 3.89 4 7.67 - 9.56 50 13.34 - 15.23 5 3.89 - 5.78 8 9.56 - 11.45 38 15.23 - 17.12 4 5.78 - 7.67 69 11.45 - 13.34 5 17.12 - 19.01 13 Descriptor: HEIGHT obtype: NUMERIC CGC: YES Plant height in meters as grown in Tecoman or Iguala Mexico Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.50 - 0.90 195 1.70 - 2.10 363 2.90 - 3.30 3 0.90 - 1.30 250 2.10 - 2.50 73 3.30 - 3.70 3 1.30 - 1.70 305 2.50 - 2.90 26 3.70 - 4.10 0 Descriptor: LEAFCOLOR obtype: CHAR CGC: YES Leaf color. Code Definition ---- ---------- 1 Green 2 Red 3 Virescent Yellow 4 Dark (super) Red 5 Segregating Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 735 3 8 5 5 2 34 4 2 Descriptor: LEAFHAIRS obtype: CHAR CGC: YES Leaf hairs. Code Definition ---- ---------- 1 No plant hairs 2 Few plant hairs 3 Moderate plant hairs 4 Hairy 5 Very hairy 6 Pilose Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 8 3 550 5 21 2 51 4 145 6 4 Descriptor: LEAFLAC obtype: NUMERIC CGC: YES B/A where B = distance from petiole to the sinus between the middle lobe and the first lateral lobe and A = length of leaf from petiole to tip of middle lobe. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.06 - 0.14 13 0.30 - 0.38 113 0.54 - 0.62 7 0.14 - 0.22 25 0.38 - 0.46 55 0.62 - 0.70 1 0.22 - 0.30 103 0.46 - 0.54 25 0.70 - 0.78 0 Descriptor: LINT obtype: NUMERIC CGC: YES The weight of lint ginned from a sample of seed cotton expressed as a percentage of the weight of seed cotton. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.70 - 9.62 30 25.46 - 33.38 767 49.22 - 57.14 2 9.62 - 17.54 77 33.38 - 41.30 729 57.14 - 65.06 1 17.54 - 25.46 255 41.30 - 49.22 32 65.06 - 72.98 2 Descriptor: LINTINDEX obtype: NUMERIC CGC: YES The weight of lint from 100 seed in grams Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.20 - 4.78 311 13.94 - 18.52 1 27.68 - 32.26 0 4.78 - 9.36 246 18.52 - 23.10 0 32.26 - 36.84 0 9.36 - 13.94 17 23.10 - 27.68 0 36.84 - 41.42 1 Descriptor: LOCULES obtype: NUMERIC CGC: YES Average number of locules in a 10 boll sample. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 2.90 - 3.10 145 3.50 - 3.70 3 4.10 - 4.30 1 3.10 - 3.30 44 3.70 - 3.90 1 4.30 - 4.50 0 3.30 - 3.50 10 3.90 - 4.10 1 4.50 - 4.70 0 Descriptor: MATURITY obtype: CHAR CGC: YES Relative maturity of entries when earliest cotton had all bolls open. Code Definition ---- ---------- 1 All bolls open 2 1/2 bolls open 3 Mostly green bolls 4 No bolls open 5 No flowers Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 80 3 361 5 182 2 155 4 462 Descriptor: MEAN obtype: NUMERIC CGC: YES The average length in inches of all fibers longer than 1/4 inch. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.48 - 1.62 1809 3.90 - 5.04 0 7.32 - 8.46 0 1.62 - 2.76 0 5.04 - 6.18 0 8.46 - 9.60 0 2.76 - 3.90 0 6.18 - 7.32 1 9.60 - 10.74 1 Descriptor: MEAN2 obtype: NUMERIC CGC: YES Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.42 - 0.53 3 0.75 - 0.86 124 1.08 - 1.19 20 0.53 - 0.64 25 0.86 - 0.97 378 1.19 - 1.30 1 0.64 - 0.75 31 0.97 - 1.08 180 1.30 - 1.41 0 Descriptor: MICRONAIRE obtype: NUMERIC CGC: YES The fineness of the sample taken from the ginned lint measured by the Micronaire and expressed in standard curvilinear micron aire units. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.09 - 2.11 3 4.15 - 5.17 910 7.21 - 8.23 7 2.11 - 3.13 81 5.17 - 6.19 410 8.23 - 9.25 1 3.13 - 4.15 679 6.19 - 7.21 112 9.25 - 10.27 0 Descriptor: PETALCOLOR obtype: CHAR CGC: YES Petal color. Code Definition ---- ---------- 1 Yellow 2 Cream 3 Cream/red 4 Segregating 5 Dark yellow 6 Light yellow 7 Red Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 31 4 277 6 3 2 749 5 2 7 3 3 42 Descriptor: PETALSPOT obtype: CHAR CGC: YES Type of petal spotting. For the Arizona Collections the codes are from 0 (spotless) to 22 (full spot). Code Definition ---- ---------- 0 None 1 Light spot 2 Medium spot 3 Heavy spot Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0 755 2 56 3 44 1 44 Descriptor: POLLENCOL obtype: CHAR CGC: YES Pollen color. Code Definition ---- ---------- 1 Yellow 2 Cream 3 Segregating 4 Dark yellow Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 113 3 39 4 5 2 949 Descriptor: PRODUCTIVE obtype: CHAR CGC: YES Relative productiveness. Code Definition ---- ---------- 1 Most productive 2 Good production 3 Fair production 4 Poor production 5 No production Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 31 3 428 5 162 2 214 4 409 Descriptor: PROTEIN obtype: NUMERIC CGC: YES Percent protein determined by automated microkjeldahl Technicon. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 14.00 - 15.89 3 19.67 - 21.56 21 25.34 - 27.23 10 15.89 - 17.78 5 21.56 - 23.45 15 27.23 - 29.12 4 17.78 - 19.67 10 23.45 - 25.34 10 29.12 - 31.01 1 Descriptor: PUBESCENCE obtype: CHAR CGC: YES Hairiness of plant in general. Code Definition ---- ---------- 1 No plant hairs 2 Few plant hairs 3 Hairy plant 4 Very hairy plant Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 171 3 341 4 215 2 459 Descriptor: REFLECT obtype: NUMERIC CGC: YES A Measure of the percentage of reflectance on a Nickerson-Hunter Colorimeter. The higher the value the lighter the cotton. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 41.00 - 45.56 2 54.68 - 59.24 4 68.36 - 72.92 48 45.56 - 50.12 1 59.24 - 63.80 2 72.92 - 77.48 86 50.12 - 54.68 3 63.80 - 68.36 18 77.48 - 82.04 31 Descriptor: SDCOATIND obtype: NUMERIC CGC: YES Weight in grams of seed coats per 100 seeds. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.39 - 1.96 9 3.10 - 3.67 149 4.81 - 5.38 13 1.96 - 2.53 92 3.67 - 4.24 117 5.38 - 5.95 0 2.53 - 3.10 170 4.24 - 4.81 65 5.95 - 6.52 0 Descriptor: SEEDCOAT obtype: NUMERIC CGC: YES Weight of seed coat over weight of whole seed. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 38.00 - 39.89 6 43.67 - 45.56 10 49.34 - 51.23 5 39.89 - 41.78 15 45.56 - 47.45 7 51.23 - 53.12 1 41.78 - 43.67 13 47.45 - 49.34 8 53.12 - 55.01 1 Descriptor: SEEDINDEX obtype: NUMERIC CGC: YES The weight of 100 seed in grams Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.80 - 4.69 24 12.47 - 16.36 717 24.14 - 28.03 0 4.69 - 8.58 289 16.36 - 20.25 59 28.03 - 31.92 0 8.58 - 12.47 905 20.25 - 24.14 2 31.92 - 35.81 1 Descriptor: SEEDOIL obtype: NUMERIC CGC: YES Percentage of oil by weight in 10 gram sample of seeds. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 21.00 - 22.11 1 24.33 - 25.44 13 27.66 - 28.77 4 22.11 - 23.22 3 25.44 - 26.55 13 28.77 - 29.88 4 23.22 - 24.33 8 26.55 - 27.66 13 29.88 - 30.99 2 Descriptor: SEEDS obtype: NUMERIC CGC: YES Average number of seed in a 10 boll sample. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 11.00 - 13.67 6 19.01 - 21.68 64 27.02 - 29.69 4 13.67 - 16.34 18 21.68 - 24.35 70 29.69 - 32.36 5 16.34 - 19.01 37 24.35 - 27.02 24 32.36 - 35.03 4 Descriptor: SEEDTYPE obtype: CHAR CGC: YES Seed type code. Code Definition ---- ---------- 1 Free seed 2 Semi-kidney 3 Kidney Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 171 2 19 3 88 Descriptor: SITE obtype: CHAR CGC: YES Site where the sample was collected as indicated by notes at the cotton station in College Station. Descriptor: SPANLEN25 obtype: NUMERIC CGC: YES The length (mm) at which the given percentage of fibers in an array are that long or longer. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.72 - 0.84 5 1.08 - 1.20 213 1.44 - 1.56 5 0.84 - 0.96 13 1.20 - 1.32 20 1.56 - 1.68 0 0.96 - 1.08 202 1.32 - 1.44 11 1.68 - 1.80 0 Descriptor: SPANLEN50 obtype: NUMERIC CGC: YES The length (mm) at which the given percentage of fibers in an array are that long or longer. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.38 - 0.42 3 0.50 - 0.54 179 0.62 - 0.66 11 0.42 - 0.46 24 0.54 - 0.58 102 0.66 - 0.70 2 0.46 - 0.50 108 0.58 - 0.62 36 0.70 - 0.74 0 Descriptor: T0 obtype: NUMERIC CGC: YES The fiber strength of a bundle of fibers measured on a Stelometer with the jaws holding the fiber bundle tightly appressed. Measured in grams force per tex. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 3.32 - 9.05 201 20.51 - 26.24 2 37.70 - 43.43 636 9.05 - 14.78 1 26.24 - 31.97 96 43.43 - 49.16 110 14.78 - 20.51 1 31.97 - 37.70 731 49.16 - 54.89 7 Descriptor: T1 obtype: NUMERIC CGC: YES The fiber strength of a bundle of fibers measured on a Stelometer with the jaws separated by a 1/8 inch spacer. Measured in grams force per tex. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.80 - 5.39 3 12.57 - 16.16 204 23.34 - 26.93 238 5.39 - 8.98 0 16.16 - 19.75 983 26.93 - 30.52 47 8.98 - 12.57 6 19.75 - 23.34 699 30.52 - 34.11 3 Descriptor: UHM obtype: NUMERIC CGC: YES The length in inches of the half of the fibers by weight that contains the longer fibers. UHM approximates classer's staple and 2.5 percent span length. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.12 - 1.23 1578 3.45 - 4.56 0 6.78 - 7.89 0 1.23 - 2.34 210 4.56 - 5.67 0 7.89 - 9.00 0 2.34 - 3.45 0 5.67 - 6.78 0 9.00 - 10.11 1 Descriptor: UHM2 obtype: NUMERIC CGC: YES Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.49 - 0.63 3 0.91 - 1.05 190 1.33 - 1.47 32 0.63 - 0.77 13 1.05 - 1.19 346 1.47 - 1.61 0 0.77 - 0.91 65 1.19 - 1.33 113 1.61 - 1.75 0 Descriptor: VERT obtype: NUMERIC CGC: YES Resistance to Verticillium dahliae. (1.0 = Immune, 5.0 = Highly susceptible) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 2.70 - 3.03 2 3.69 - 4.02 20 4.68 - 5.01 512 3.03 - 3.36 4 4.02 - 4.35 37 5.01 - 5.34 0 3.36 - 3.69 4 4.35 - 4.68 97 5.34 - 5.67 0 Descriptor: YELLOWNESS obtype: NUMERIC CGC: YES Hunter's B value, a measure of increasing yellowness of the cotton, taken with a Nickerson-Hunter Colorimeter. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 8.80 - 10.26 76 13.18 - 14.64 10 17.56 - 19.02 2 10.26 - 11.72 86 14.64 - 16.10 4 19.02 - 20.48 1 11.72 - 13.18 20 16.10 - 17.56 1 20.48 - 21.94 1