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A. G. arboreum cv 15-Mollisoni (2n = 2x = 26); B. G. hirsutum cv CRSM-38 (2n = 4x = 52); C. 2(G. arboreum) (2n = 4x = 52); D. [2(G. arboreum)×G. hirsutum] F1 (2n = 4x = 52); E. (G. hirsutum×G. arboreum) F1 (2n = 3x = 39).
