Sunday, November 11, 2007

Seedless fruits

Seedlessness is an imperative feature of some fruits of commerce. Profitable cultivars of bananas and pineapples are examples of seedless fruits. Some cultivars of citrus fruits (especially navel oranges and mandarin oranges), table grapes, grapefruit, and watermelons are esteemed for their seedlessness. In some species, seedlessness is the result of parthenocarpy, where fruits locate without fertilization. Parthenocarpic fruit situate may or may not require pollination. Most seedless citrus fruits want a pollination stimulus; bananas and pineapples do not. Seedlessness in table grapes domino effect from the abortion of the embryonic plant that is produced by fertilization, a phenomenon known as stenospermocarpy which requires normal pollination and fertilization.

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