. American breeders magazine. Breeding; Plant breeding; Heredity. Halsted: Geometrical Figures 219 and 9 in the female. The same reciprocal relationship is shown by the same lines for 8 and 14 where both are hot and upright. The polj'^gons are eight in number, alternating throughout with the triangles, and are grouped as four pairs of reciprocals, thus the ones at 2 and 5 (three being the number of units between them) show that, while both are hot and upright, the dotted lines indicate a difference in the relation of the parents to the una in question. In like manner, 12 and 15 show at once th


. American breeders magazine. Breeding; Plant breeding; Heredity. Halsted: Geometrical Figures 219 and 9 in the female. The same reciprocal relationship is shown by the same lines for 8 and 14 where both are hot and upright. The polj'^gons are eight in number, alternating throughout with the triangles, and are grouped as four pairs of reciprocals, thus the ones at 2 and 5 (three being the number of units between them) show that, while both are hot and upright, the dotted lines indicate a difference in the relation of the parents to the una in question. In like manner, 12 and 15 show at once the lack of sharp angles and therefore both are mild and pendent but reciprocals. In the diagonal from 4 to 13, ciossing the other diagonal of the pure offspring, 7 and 10 (with the common difference of three) fill up the cross-lines from 2 to 12 and from 5 to 15 in the chart; and are. Fig. 2. At 1, 2, and 3 are geometrical figures used to show different combinations when four pairs of una are Involved In the breeding. reciprocals of the ordinary sort,—that is, without the dominants and recessives both borne by the same parent,—the latter being a rare condition that obtains in the opposite corners,—namely, 4 and 13, where 4 has both recessives brought by the pollen to the dominants in the egg-cell, while in 13 the reverse is true, making this a paired reciprocal. If one wishes to study certain figures without the confusion that the presence of the others may induce, all but those desired can be quickly excluded by using gummed paper flaps to cover any figures temporarily. In the case of the peppers, there are the tall and the dwarf sorts and this pair of allelomorphs can be readily accommodated by making two sides of the triangle somewhat prolonged for the tall Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the orig


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplantbr, bookyear1910