Orthodox seeds can stay dormant for decades in a cool and dry environment, with little damage to their DNA; they remain viable and are easily stored in seedbanks. By contrast, recalcitrant seeds are damaged by dryness and subzero temperature, and so must be continuously replanted to replenish seed stocks. Examples are the seeds of cocoa and rubber.
Read more about this topic: Seedbank
Other articles related to "seeds, seed dormancy, seed, dormancy":
... Some live seeds are dormant and need more time, and/or need to be subjected to specific environmental conditions before they will germinate ... Seed dormancy can originate in different parts of the seed, for example, within the embryo in other cases the seed coat is involved ... Dormancy breaking often involves changes in membranes, initiated by dormancy-breaking signals ...
... Plant hormones affect seed germination and dormancy by acting on different parts of the seed ... Embryo dormancy is characterized by a high ABAGA ratio, whereas the seed has a high ABA sensitivity and low GA sensitivity ... In order to release the seed from this type of dormancy and initiate seed germination, an alteration in hormone biosynthesis and degradation toward a low ABA/GA ratio, along with a decrease in ABA sensitivity and an ...
Famous quotes containing the word seed:
“The return of the asymmetrical Saturday was one of those small events that were interior, local, almost civic and which, in tranquil lives and closed societies, create a sort of national bond and become the favorite theme of conversation, of jokes and of stories exaggerated with pleasure: it would have been a ready- made seed for a legendary cycle, had any of us leanings toward the epic.”
—Marcel Proust (18711922)