Roma tomatoes are heirloom tomatoes that produce true from saved seed. Harvest seeds from a vine-ripened tomato. Squeeze the seeds out into a small, open container and allow them to sit to ferment for a few days. Wash them carefully and dry on a paper towel.
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Diane Watkins has been writing since 1984, with experience in newspaper, newsletter and web content. She writes two electronic newsletters and content around the web. Watkins has a Bachelor of Science degree in chemistry from Clemson University. She has taken graduate courses in biochemistry and education.