Plant-breeding; comments on the experiments of Nilsson and Burbank . Fig. 97. (Gordons currant (Ribcs Gordonianiim), a hybrid of the floweringcurrant and the golden currant. 314. Fig 08 A The flowering currant of the Pacific Coast (Ribes sangui-? neum). B. The yellow currant {Ribes aureim). 315 3i6 PLANT-BREEDING mediates are still lacking, showing that the unit-characteris either present or absent, but cannot be divided into lesserconstituents. Such spHttings are even more striking, whenever theyare produced on the ditlerent branches and flowers of thesame individual plant. The instance of th
Plant-breeding; comments on the experiments of Nilsson and Burbank . Fig. 97. (Gordons currant (Ribcs Gordonianiim), a hybrid of the floweringcurrant and the golden currant. 314. Fig 08 A The flowering currant of the Pacific Coast (Ribes sangui-? neum). B. The yellow currant {Ribes aureim). 315 3i6 PLANT-BREEDING mediates are still lacking, showing that the unit-characteris either present or absent, but cannot be divided into lesserconstituents. Such spHttings are even more striking, whenever theyare produced on the ditlerent branches and flowers of thesame individual plant. The instance of the willow-leavedVeronica has been dealt with; its flowers are either of a darkblue or completely white, the unit which produces the dyebeing wholly absent or present, ])ut not in intermediatedegrees. A parallel case is that of the hybrid between theorange and the lemon, which may show the separation ofits units within the same fruits, some parts having the colorand the juice of the orange and others those of the lemon. Crosses between species are more difticult to to the general rule, all the single marks of theparents are mixed up in the offspring s
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