In General, breeds a lot of space, and it takes a long time, but has a low output, or less. The General breeding takes a long time, as well as breeding. Selection and planting test
The species generally require a lot of space and time, but have low productivity or less. The conventional breeding takes a long time, including selective breeding and testing plant.
In general have many propagation area and take a long time but have low yield or small number. The improvement of general model takes a long time as well as breeding selection and planting test.