Grapes, during normal growth, develop at least four seeds. However, factors such as variety, environment, soil, nutrients and water affect how many seeds develop during the growth cycle. In seedless grape varieties, which are smaller than seeded grapes, the seed is aborted during the growth cycle.
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Based in Ohio, Deborah Waltenburg has been writing online since 2004, focusing on personal finance, personal and commercial insurance, travel and tourism, home improvement and gardening. Her work has appeared on numerous blogs, industry websites and media websites, including "USA Today."