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Seed storage behaviour of four Sahelian and Sudanian tree species (Boscia senegalensis, Butyrospermum parkii, Cordyla pinnata and Saba senegalensis)

Published online by Cambridge University Press:  22 February 2007

P. Danthu ,
A. Guèye ,
A. Boye ,
D. Bauwens  and
A. Sarr
P. Danthu*
Affiliation:
CIRAD-Forêt, B.P. 1716, Dakar, Senegal ISRA/D.R.P.F., B.P. 2312, Dakar, Senegal
A. Guèye
Affiliation:
ENSA Thiès, B.P. A 296, Thiès, Senegal
A. Boye
Affiliation:
PRONASEF, B.P. 3818, Dakar, Senegal
D. Bauwens
Affiliation:
PRONASEF, B.P. 3818, Dakar, Senegal
A. Sarr
Affiliation:
ISRA/D.R.P.F., B.P. 2312, Dakar, Senegal
*
Correspondence Tel: +221–832–32–19 or +221–832–46–74 Fax: +221–832–96–17 or +221–821–18–79 Email: danthu@isra.refer.sn or pascal.danthu@cirad.fr
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Abstract

Seeds of four African tree species from the Sahelian zone (Boscia senegalensis) and the Sudanian zone (Butyrospermum parkii, Cordyla pinnata and Saba senegalensis) lose viability after moisture contents drop below 22 and 30%, depending on the species. Seed longevity in wet and airtight storage does not exceed a few months. Temperatures close to zero elicit symptoms of chilling injury leading to rapid seed death. The optimum storage temperature is 15°C. These results allow the four species to be classified as recalcitrant seed species. Boscia senegalensis is therefore an exception in arid zones where most species have orthodox seeds.

Keywords

Boscia senegalensisButyrospermum parkiiCordyla pinnataSaba senegalensisrecalcitranceseed desiccationSenegal
Type
Research Article
Information
Seed Science Research , Volume 10 , Issue 2 , June 2000 , pp. 183 - 187
Copyright
Copyright © Cambridge University Press 2000

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