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Name: Lucci L.
Status: student
Age: 18
Location: N/A
Country: N/A
Date: Sunday, April 21, 2002


Question:
Are there any information on the effect of age of seed on its germination?


Replies:
Lucci,

A general statement can be made that percentage of germination or percentage of viable seeds drops over time. As seeds age, a certain percentage will die and therefore will not germinate. There are statistics available per tree species what the likely germination percentage will be; there may be comparable data for other plant species. Naturally, this percentage can also be influenced by the environment of the seeds. If they are exposed to molds, for example, a greater percentage of the seed can become non-viable through disease; excessive heat or cold or an extremely dry surrounding can also cause the germinatable percentage to fall below what would normally be expected for a particular species.

Thanks for using NEWTON!

Ric Rupnik


The following might be helpful:

http://www.kabt.org/Labs/Seeds.htm

Also you could search www.google.com for "seed age effects germination viability" for various studies.

Anthony R. Brach, Ph.D.



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