WATERMELON Descriptor Site(s): S9 ------ Contains characteristic data on Citrullus (Watermelon) accessions. For additional information, contact Bob Jarret at the Plant Genetic Resources Conservation Unit (S-9), Griffin, GA 30223-1797, ph (770) 228-7303. Descriptor: ANTHRAC obtype: CHAR CGC: YES Resistance to unknown race of Colletotrichum lagenarium Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 10 9 244 Descriptor: ANTHRAC2 obtype: CHAR CGC: YES Reaction to Colletotrichium lagenarium race 2 (Winstead et al Plant Disease Reporter 43:570-577. 1959) Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 7 9 730 Descriptor: BACKGROUND obtype: CHAR CGC: YES Fruit rind background color Code Definition ---- ---------- 1 Light Green 2 Medium Green 3 Dark Green 4 White 5 Yellow 6 Brown 9 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 515 4 17 6 3 2 512 5 10 9 239 3 342 Descriptor: BRIX obtype: NUMERIC CGC: YES Mass percent sucrose determined by a hand held refractometer Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.10 - 1.48 19 4.24 - 5.62 109 8.38 - 9.76 64 1.48 - 2.86 116 5.62 - 7.00 130 9.76 - 11.14 31 2.86 - 4.24 75 7.00 - 8.38 124 11.14 - 12.52 2 Descriptor: COLORPATT obtype: CHAR CGC: YES Color pattern of fruit rind Code Definition ---- ---------- 1 Solid 2 Striped 3 Variable 4 Mixed 5 Spotted Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 682 3 251 5 16 2 655 4 38 Descriptor: CORE obtype: CHAR CGC: YES A flag to indicate the accession is part of the core subset Code Definition ---- ---------- Y Yes, accession is part of the core subset Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- Y 253 Descriptor: DOWMILPUB obtype: CHAR CGC: YES Disease index for Downy Mildew at Castle Hayne, NC., published by Winstead (Plant Disease Reporter 41:620-622. 1975) Code Definition ---- ---------- 1 Resistant 2 Moderately Resistant 3 Susceptible 4 Severely Diseased Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 2 3 3 29 4 201 Descriptor: DOWNYMILD obtype: CHAR CGC: YES Resistance to Pseudoperonospora cubensis at Experiment, GA Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 5 9 200 Descriptor: FLESHCOLOR obtype: CHAR CGC: YES Color of ripe fruit flesh Code Definition ---- ---------- 1 Red 2 Pink 3 Yellow 4 White 5 Mixed 6 Orange 7 Green 9 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 651 4 204 7 11 2 374 5 40 9 105 3 156 6 16 Descriptor: FLESHFIRM obtype: CHAR CGC: N Flesh firmness (average of three fruit at maturity) Code Definition ---- ---------- 1 Unusually firm 2 Average (e.g. Charleston Grey) 3 Unusually soft Descriptor: FRTBLOTCH obtype: CHAR CGC: YES Resistance to watermelon fruit blotch (Acidovorax avenae subsp. citrulli). Code Definition ---- ---------- 1 Resistant (no symptons) 2 (1 = Resistant, 9 = Susceptible) 3 Restricted lesions on cotyledon, < 20% necrotic 4 (1 = Resistant, 9 = Susceptible) 5 Necrotic lesions with chlorosis, 20-50% nectotic cotyledon 6 (1 = Resistant, 9 = Susceptible) 7 Large spreading lesions, > 50% of cotyledon necrotic 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible (large lesions on cotyledon and first true leaf, or dead plant) Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 5 2 7 86 9 774 6 11 8 435 Descriptor: FRUITDIAM obtype: NUMERIC CGC: YES Maximum fruit diameter in centimeters Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1.00 - 6.56 12 17.68 - 23.24 741 34.36 - 39.92 11 6.56 - 12.12 148 23.24 - 28.80 179 39.92 - 45.48 7 12.12 - 17.68 310 28.80 - 34.36 44 45.48 - 51.04 2 Descriptor: FRUITLEN obtype: NUMERIC CGC: YES Fruit length in centimeters Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 3.00 - 9.44 37 22.32 - 28.76 316 41.64 - 48.08 14 9.44 - 15.88 262 28.76 - 35.20 123 48.08 - 54.52 3 15.88 - 22.32 658 35.20 - 41.64 40 54.52 - 60.96 1 Descriptor: FRUITSHAPE obtype: CHAR CGC: YES General fruit shape Code Definition ---- ---------- 1 Round 2 Oblate 3 Oblong 4 Elongate 9 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 1188 3 269 9 79 2 44 4 71 Descriptor: FRUITWGT obtype: NUMERIC CGC: YES Fruit weight measured in kilograms Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 0.10 - 3.87 620 11.41 - 15.18 8 22.72 - 26.49 0 3.87 - 7.64 237 15.18 - 18.95 3 26.49 - 30.26 1 7.64 - 11.41 32 18.95 - 22.72 1 30.26 - 34.03 1 Descriptor: GROOVES obtype: CHAR CGC: N Longitudinal grooves Code Definition ---- ---------- 0 Absent 1 Present Descriptor: GSB_SOWELL obtype: CHAR CGC: YES Resistance to Gummy Stem Blight (Mycosphaerella citrullina). Reported by Sowell & Pointer, Plant Disease Reporter 46:883-885. 1962. 59:413-415. 1975. Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 2 9 605 Descriptor: GSB_WEHNER obtype: NUMERIC CGC: N Resistance to gummy stem blight (Didymella bryoniae (Auersw.) Rehm). Data summarized as the mean (mean of 1,325 cultigens = 4.50) and standard deviation over replications. Reported by Gusmini, Song, and Wehner, Crop Sci. 45:582-588. Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 2.30 - 2.89 7 4.07 - 4.66 388 5.84 - 6.43 25 2.89 - 3.48 74 4.66 - 5.25 394 6.43 - 7.02 0 3.48 - 4.07 222 5.25 - 5.84 161 7.02 - 7.61 0 Descriptor: LEAFSPOT obtype: CHAR CGC: YES Resistance to leafspot (Cercospora citrullina) Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 9 41 Descriptor: MATURITY obtype: CHAR CGC: YES Relative time of maturation Code Definition ---- ---------- 1 Early Season 2 (1 = Early Season, 8 = Late Season) 3 (1 = Early Season, 8 = Late Season) 4 (1 = Early Season, 8 = Late Season) 5 Midseason 6 (1 = Early Season, 8 = Late Season) 7 (1 = Early Season, 8 = Late Season) 8 Late Season Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 265 5 680 7 17 2 2 6 2 8 356 3 72 Descriptor: PLANTTYPE obtype: CHAR CGC: N Growth habit of the plant Code Definition ---- ---------- 1 Bush 2 Vine or runner Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 1 2 2 Descriptor: POWDMILD obtype: CHAR CGC: YES Resistance to powdery mildew (Oidium sp.) Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 36 9 83 Descriptor: SEEDBLIGHT obtype: CHAR CGC: YES Resistance to Seedling Blight (Pseudomonas pseudoalkaligenes ssp. citrulli). Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 2 9 630 Descriptor: STRIPECOL obtype: CHAR CGC: YES Color of rind stripes Code Definition ---- ---------- 1 Light Green 2 Medium Green 3 Dark Green 4 White 5 Yellow 6 Brown 9 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 160 4 6 6 1 2 259 5 1 9 141 3 569 Descriptor: THICKNESS obtype: NUMERIC CGC: N Rind thickness of mature fruit measured in centimeters. Average of 6 fruits (minimum). Descriptor: UNIFFRTCOL obtype: CHAR CGC: N Uniformity of the fruit color Code Definition ---- ---------- 1 Uniform 2 Somewhat Uniform 3 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 112 2 21 3 7 Descriptor: UNIFRINDCO obtype: CHAR CGC: N Uniformity of the rind color Code Definition ---- ---------- 1 Uniform 2 Somewhat Uniform 3 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 111 2 28 3 1 Descriptor: UNIFSHAPE obtype: CHAR CGC: N Uniformity of shape Code Definition ---- ---------- 1 Uniform 2 Somewhat Uniform 3 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 112 2 21 3 7 Descriptor: UNIFSIZE obtype: CHAR CGC: N Uniformity of size Code Definition ---- ---------- 1 Uniform 2 Somewhat Uniform 3 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 47 2 80 3 13 Descriptor: UNIFSURF obtype: CHAR CGC: N Uniformity of fruit surface features Code Definition ---- ---------- 1 Very uniform 2 Somewhat uniform 3 Variable Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 3 Descriptor: VERTWILT obtype: CHAR CGC: YES Resistance to Wilt (Verticillium dahliae) reported by Skotland. Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 9 459 Descriptor: VINETYPE obtype: CHAR CGC: N Vine type Code Definition ---- ---------- 1 Dwarf 2 Not dwarf Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 2 Descriptor: WMVII obtype: CHAR CGC: YES Resistance to watermelon mosaic virus II. Code Definition ---- ---------- 1 Resistant 2 (1 = Resistant, 9 = Susceptible) 3 (1 = Resistant, 9 = Susceptible) 4 (1 = Resistant, 9 = Susceptible) 5 (1 = Resistant, 9 = Susceptible) 6 (1 = Resistant, 9 = Susceptible) 7 (1 = Resistant, 9 = Susceptible) 8 (1 = Resistant, 9 = Susceptible) 9 Susceptible Value Freq. Value Freq. Value Freq. ----------------- ----- ----------------- ----- ----------------- ----- 1 26 9 552