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Keeping Annuals Alive Longer than Normal

Bill Williams WEWilliams at smcm.edu
Tue Apr 30 08:07:46 EST 2002


At 23:59 +0100 4/29/02, David Hershey wrote:
>In 1955, Ulrich (Plant Physiology 30:250-257) kept a
>biennial sugar beet alive for 41 months by preventing
>it from flowering by not vernalizing it. Does anyone
>know of a similar study that kept annual plants alive
>long after their normal lifespans by preventing them
>from flowering?

Well, there's the famous "Maryland Mammoth" tobacco story, where the 
mutant plant with the extremely short inducing photoperiod  didn't 
flower. I'm not sure how long the plant actually lived, but it was 
quite a bit longer than the average tobacco plant.

-W2
-- 
________________________
William E. Williams WEWilliams at smcm.edu
Biology Department
Saint Mary's College of Maryland
18952 E. Fisher Rd.
Saint Mary's City, MD  20686-3001
(240)895-4365
Fax: (240)895-4996

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