A short article in the National Garden Bureau blog observes, "Today you don’t need to be a horticultural expert to grow tasty tomatoes, mouthwatering watermelon, or fragrant lilacs. Advances in breeding over the past decade have resulted in plants that are easier for home gardeners to grow. They are more disease-resistant, weather tolerant, and prolific than ever before."
Advocates of open pollinated heirloom varieties might have a different take on the subject, but it's worth taking note. Read more.