Vegetative propagation of pineapples is done by using the crowns
(tops), slips, ratoons, and suckers. Seeds are usually used only in
pineapple breeding programs to develop new varieties. Meaning, most
pineapple reproduction is carried out asexually with human assistance.
The seeds themselves are slow and hard to germinate. Why this is the
case isn't clear to me; but the fact is simply that some plants
propogate through seeds, and some through other measures like
branching bulbs and suckers - some plants can be reproduced by
multiple of these.
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