According to Cornell University, tomatoes need at least seven hours of full sun a day in order to produce the best crop. Fruit production requires a lot of energy, and vegetable plants get their energy from the sun.
About this Author
Melody Dawn has been writing since 2004. Her work has appeared in the "Gainesville Times" and her writing focuses on topics about gardening, business and education. She is a member of the Society for Professional Journalists. Dawn holds a Master of Business and is working on a Master of Journalism from the University of Tennessee.