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  Titanums
From: "Don Bittel" <dbittel at treco.net> on 1998.04.28 at 21:09:44(2052)
I meant to post this last August when my largest titanum went dormant, but
it should be more relevant now.
This tuber came from Jim Symon's first batch of seeds. The tuber, washed
and dryed, weighed 2425 grams or about 5.3 pounds ( 85 ounces). It was
almost completely round, being 7 inches in diameter and height.(about 18
centimeters?)
+More
From: "Victor G. Soukup" <soukupvg at email.uc.edu> on 1998.04.29 at 14:17:41(2056)
I am always loathe to get into these things but when there appears to be a
lack of understanding of math then I want to try to correst it. In volume
measurements the radius appears as the cube, the third power. Thus a
diameter of 5 (radius 2.5) gives 15.625 while a diameter of 7 (radius 3.5)
gives a
42.875. As you can see, the latter number is approaching three times that
of the former. thus the weight of the latter should be roughly three times
that of the former. wish that I could get to St. Louis to see this A.
titanum when it does bloom.

Vic Soukup

+More
From: Don Burns <burns at mobot.org> on 1998.04.29 at 14:35:34(2057)
> In volume measurements the radius appears as the cube, the third
> power. Thus a diameter of 5 (radius 2.5) gives 15.625 while a diameter
> of 7 (radius 3.5) gives a 42.875. As you can see, the latter number is
> approaching three times that of the former. Thus the weight of the latter
> should be roughly three times that of the former.

Yes! The math is correct. The conclusion, however, assumes that each
tuber has equal mass throughout, I.e. no hard central core or the like.
I believe this is a correct assumption but have no intention of cutting
up one of mine to verify this!

Don Burns Plantation, FL USA
Zone 10b

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