Re: Jatropha oil as household energy (forwarding Henning)

["A.D. Karve" <adkarve@pn2.vsnl.net.in>]

Dear Mr. Seaver,
 I have conducted field experiments on both castor and Jatropha.  I had
already mentioned in a previous E-mail, that Jatropha was tested rather
widely in India and was given up because it was not found to be as high
yielding as the traditional oil crops in India.  I do not know how it
behaves in other countries, but under our agroclimatic and edaphic
conditions, Jatropha produces much more vegetative matter than fruits.  At
harvest, one has to search for the occasional fruit hidden behind all the
foliage that this plant produces.  It is found all over India as a wild
plant.  India has some 25 uncultivated species of trees that yield
non-edible oil. The seed of the wild trees is collected by villagers and
sold to merchants attending the weekly village markets, but no farmer would
ever think of growing them as a crop, because all of them are lower yielding
than the cultivated oil plants such as peanut, soybean, sunflower,
safflower, sesame, various mustards and rapes, coconut, etc. Among the
seasonal oilseeds, hybrid castor is the highest yielding (2.5 tonnes oil per
ha), but it is not an edible oil. The highest yield of edible oil, also
about 2.5 tonnes per ha, is obtained from coconut. Oil palm, which yields 6
tonnes of oil per hectare in Malaysia,  was tested and given up as low
yielding under Indian conditions.
Yours A.D.Karve
-----Original Message-----
From: Harmon Seaver <hseaver@cybershamanix.com>
To: A.D. Karve <adkarve@pn2.vsnl.net.in>
Cc: Ron Larson <ronallarson@qwest.net>; stoves@crest.org <stoves@crest.org>
Date: Tuesday, September 17, 2002 8:09 PM
Subject: Re: Jatropha oil as household energy (forwarding Henning)




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