Seedless Watermelon - Knowledgebase Question

Irvine, CA
Question by bluewil
January 8, 1999
Where do you get seeds to plant from if the watermelon is seedless?

Answer from NGA
January 8, 1999


Seedless watermelons are the result of a plant breeding technique that's over 50 years old. Seedless watermelons do contain some undeveloped seeds, but these are soft and edible. There are three kinds of watermelons; diploid, tetraploid and triploid. The first two types have seeds, the triploid does not. To make a triplod, breeders cross a tetraploid and a diploid. The result is a triploid. The seeds of a triploid will grow and develop fruit, but the seeds within that developing fruit are sterile and will not fully develop. In order to get seeds to grow a seedless watermelon, growers save seeds from the fruit that develops when a male diploid and a female tetraploid are crossed.

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