For coloured flowers are dominant to white, and tallness is dominant to dwarfness. |
These last combine the erect bush-like habit of growth with the dwarfness of the Cupid. |
Tallness, being an impulse toward extension, can never be dwarfness, which is an impulse toward contraction. |
There are plants that are dwarf and can transmit only dwarfness to offspring. |
A given gamete could carry tallness or dwarfness, but not both. |
If we are to get the effect of dwarfness, we must be sure that the stock is itself really dwarf. |