Abstract
Inheritance of dark green stripe and light green rind color in watermelon was investigated. Controlled crosses were made between watermelon cultivars: `Louisiana Sweet'-light green rind with dark green stripe; `Calhoun Sweet'-dark green rind without stripes; and `Charleston Gray' and `Calhoun Gray' both having light green rind without stripes. Plants of parental, F1, F2, and BC lines were classified as to rind color and presence or absence of stripe. All F1 progenies produced only striped fruit. Chi Square analysis of F2 and BC generations corresponded to 3:1 and 1:1 ratios respectively, for stripe:no stripe, indicating dark green stripe was controlled by one dominant gene. The cross `Louisiana Sweet' × `Calhoun Sweet',(light green × dark green rind color), resulted in F1 and F2 progeny having only dark green rind fruit, indicating obvious dominance for dark green rind color. Segregation in BC populations indicated a single dominant gene for dark green rind color; however, lack of segregation in the F2 suggests additional factors may be involved.
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