Just as with common flowers or other household plants (roses, pea plants, etc...), Cannabis seed strains can be grown and crossbred. This is usually done for the purpose of developing new breeds with different characteristics such as the size of the plant, yield, taste, effect, bud to leaf ratio, or other specific traits that the grower desires. As this cross breeding continues, the plants end up forming different weed strain seeds, or generations. These are often described as being either F1, F2, or F3. In order to really make some informed seed purchase decisions it is very helpful to understand the differences between these various seed strains. Photo by Robert Nelson on Unsplash F1 Seeds: The First Breeding: An F1 seed variety is created by breeding together two pure strains. For example, a tall plant (represented with two dominant genes, AA) is bred with a small plant (represented by the two small recessive genes, aa). Since the resulting plants will each receive
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