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Teen Skepchick’s Reality Checks 7.27

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Mindy

Mindy

Mindy is an attorney and Managing Editor of Teen Skepchick. She hates the law and loves stars. You can follow her on Twitter and on Google+.

4 Comments

  1. July 27, 2012 at 9:13 pm —

    Is this chemical treatment that causes triploidy a one-time thing, and they just make cuttings from then on, or do they continue to breed some sort of precursor and turn them seedless with the chemical?

    • July 27, 2012 at 9:23 pm —

      This is what I found with a quick Google:

      “Seedless watermelons are particularly interesting because they must be propagated by seed, and yet growers can still exploit parthenocarpy. One way to make seedless watermelons is to produce triploid seed. As in the case of bananas, triploid watermelons cannot produce functional seed, but they still develop good fruit through parthenocarpy. Plant breeders produce triploid seed by crossing a normal diploid parent with a tetraploid parent, which itself is made by genetically manipulating diploids to double their chromosome number. In the case of watermelons, this manipulation has to be performed each generation, so it is a somewhat expensive proposition but still worthwhile.”

      http://www.scientificamerican.com/article.cfm?id=how-do-seedless-fruits-ar

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