Issue |
OCL
Volume 20, Number 3, May-June 2013
|
|
---|---|---|
Page(s) | 165 - 170 | |
Section | Agronomie | |
DOI | https://doi.org/10.1051/ocl.2013.0508 | |
Published online | 15 May 2013 |
Effet du travail du sol sur la productivité de différentes provenances de Jatropha curcas
Effect of soil preparation and plant material provenances on Jatropha curcas productivity
1
Université Cheikh Anta Diop de Dakar, BP 5005, Dakar, Sénégal
2
Université de Thiès, Ecole Nationale Supérieure d’Agriculture, BP 967 Thiès, Sénégal
3
Institut Sénégalais de Recherches Agricoles/CNRF, BP 2312, Dakar, Sénégal
Reçu :
11
Novembre
2011
Accepté :
30
Janvier
2013
Abstract
Jatropha curcas L. (JCL), an oleaginous species traditionally used as live fence, is massively planted in Africa to produce biofuel. However, the influence of many factors on its productivity remains scientifically unknown. This study aimed to assess the effect of subsoiling (factor 1 : subsoiling and control) and plant material provenance (factor 2 : Casamance and Diobass) on its development and productivity. The results have shown two years after planting that plant provenance had a significant effect on growth variables, plant above ground architecture and fruits number. The Casamance provenance has generally produced the highest values. Subsoiling did not have a significant effect on most of the studied variables, except for low primary branches number and fruiting branches number. Even more, subsoiling appeared to enhance JCL growth. These results have allowed to understand the importance of provenances but also of soil preparation on the performances of JCL and to identify priority areas for research.
Key words: Jatropha curcas / productivity / provenance / ramification / soil preparation
© John Libbey Eurotext 2013
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