These very short-lived plants reproduce prolifically; that is to say they provide a constant rain of seed in the neighborhood of parent plants.

这些寿命极短的植物大量繁殖；也就是说，它们在母株周围持续提供着“种子雨”。

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In SSAX, by contrast, every node descends from a parent, passing and returning a seed.

与此相对比，在SSAX中，每个节点都来自一个父节点，传递并返回一个seed。

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These different categories of female parent bear different quantities of seed.

不同撒粉量的父本对结籽量没有显著影响。

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The parent hybrid pumpkin was grown by Ron Wallace in the United States and the seed was sold as one of 23 lots at an online auction.

BBC: Pumpkin seed bought online for ?168

However, poor farmers frequently cannot afford to buy new seed each season, so they take their chances and replant the best of their seed from year to year in the belief that a new plant that is not quite as good as its parent is better than no plant at all.

ECONOMIST: Terminator genes