Part one of term paper
Mankind has selectively bred plants for thousands of years with the aim of improving their quality. Experimenting with cereal crops, breeders have aimed to enhance their yield of grain, the quality of their flour, and their resistance to disease and drought. With other plants, breeders have tried to improve the perfume and color of the flow ...

Part two of term paper
... The vigour of the hybrid plant is probably a major contribution to the increased corn output in the United States. This increased output represents a major achievement for applied genetics. In 1929 practically no hybrid corn was grown among the 100 million acres of corn in the United States. But by 1970 the vast majority of 67 million acres was planted with the hybrid variety, yielding twice as much corn. Plant breeders have a definite advantage over animal breeders, because they ca ...