Taxonomic diversity and abundance of weed flora in upland rice fields of Southern Groundnut Basin, Senegal

KA, Samba Laha; GUEYE, Moustapha; MBAYE, Mame Samba; NGOM, Modou; CAMARA, Abdou Aziz; CISSOKHO, Moussou Kéba; MBALLO, Rahimi; SIDYBE, Mamadou; DIOUF, Ndongo; DIOP, Djibril; DIOUF, Jules; NOBA, Kandioura

doi:10.26655/JRWEEDSCI.2020.1.5

Document Type : Original Article

Authors

¹ Laboratoire de Botanique-Biodiversité, Faculté des Sciences et Techniques, Université Cheikh Anta DIOP, BP:5005 Dakar, Senegal.

² Centre National de Recherches Agronomiques de Bambey, Institut Sénégalais de Recherches Agricoles, B.P.53 Bambey, Diourbel, Senegal.

10.26655/JRWEEDSCI.2020.1.5

Abstract

In Southern Groundnut Basin of Senegal, weed management is one of the biggest challenges for improving upland rice production. This study aimed to evaluate the systematic composition and the infestation of weed species in order to promote a sustainable management in a context of biodiversity decreasing. Thus, phytosociological surveys were carried out during rainy season in upland rice fields. The results revealed that flora consisted of 62 species distributed in 47 genera and 15 families. The families with the highest species richness were Poaceae (24.2%), Fabaceae (12.9%) and Malvaceae (12.9%) which account for half of recorded species. Biological spectrum analysis showed that the flora is largely dominated by therophytes, with 95% of recorded species. Infestation diagram based on weeds abundance and frequency showed eight groups of species reflecting their degree of infestation. Among them, Digitaria horizontalis, Mariscus squarrosus, and Spermacoce stachydea belonged to major weeds and potential general weeds were potentially the most injurious against upland rice because of their high recovery and frequency.

Keywords

References

ANSD (Agence Nationale de la Statistique et de la Démographie). 2014. Rapport définitif du recensement général de la population et de l’habitat, de l’agriculture et de l’élevage (RGPHAE) 2013. MEFP/ Sénégal-UNFPA-USAID, 416 pages.

APG (Angiosperm Phylogeny Group). 2009. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. Botanical Journal of the Linnean Society, 161 (2): 105-121.

Bassène C. 2014. Flore adventice du maïs (Zea mays L.) dans le sud du Bassin arachidier (Sénégal) : Structure et nuisibilité des espèces. Thèse de doctorat, Université de Dakar. 164p.

Bassène C, Mbaye M.S, Camara A.A, Kane A, Guèye M, Sylla S.N, Sambou B, Noba K. 2014. La flore des systèmes agropastoraux de la Basse Casamance (Sénégal): cas de la communauté rurale de Mlomp. Int. J. Biol. Chem. Sci. 8: 2258-2273.

Bourgeois B, Munoz F, Fried G, Mahaut L, Armengot L, Denelle P, Storkey J, Gaba S, Viollet C. 2019. What makes a weed a weed? A large-scale evaluation of arable weeds through a functional lens. Amer J Bot. 106: 1–11.

Chauhan B.S, Openña J. 2012. Effect of tillage systems and herbicides on weed emergence, weed growth, and grain yield in dry-seeded rice systems. Field Crop. Res.137: 56–69.

FAO (Food and Agricultural Organization): 2013. Amélioration de la production de riz en Afrique de l’Ouest, 4pp.

Hutchinson P, Dalziel J.M, Keay R.W.J, Hepper F.N. 1958. Flora of West Tropical Africa. Vol 1 Part2. 2nd Ed.Whitefriars Press Ltd, London, Tonbridge, England, 828p.

Kâ S.L, Mbaye M.S, Guèye M, Bamba B, Ly M.O, Diouf N, Noba K. 2017. Systematic composition, life forms and chorology of fallow lands in Eastern Senegal and Casamance, Senegal. Int. J. Biol. Chem. Sci. 11: 2573-2586.

Le Bourgeois T. 1993. Les mauvaises herbes dans la rotation cotonnière au Nord-Cameroun (Afrique) - Amplitude d'habitat et degré d'infestation - Cycle de développement. Thèse de Doctorat, USTL, Montpellier, France, 241 p.

Le Bourgeois T, Merlier H. 1995. Adventrop. Les adventices d’Afrique soudano-sahélienne. Montpellier, France, CIRAD-CA éd., 640 p.

Le Bourgeois T, Marnotte P. 2002. Modifier les itinéraires techniques: la lutte contre les mauvaises herbes. In: Mémento de l’agronome. Montpellier, France, CIRAD. Pp. 663-684.

Mballo R, Bassène C, Mbaye M.S, Diallo S, Camara A.A, Noba K. 2018. Caractérisation de la flore adventice du riz irrigué dans quatre sites d’expérimentation dans la vallée du fleuve Sénégal. J Anim Plant Sci. 38: 6257-6271.

Mbaye M.S. 2013. Association mil [Pennisetum glaucum (L.) R.Br] et niébé [Vigna unguiculata (L.) Walp.] : Arrangement spatiotemporel des cultures, structures, dynamique et concurrence de la flore adventice et proposition d’un itinéraire technique. Thèse de Doctorat d’état, UCAD. 236p.

Noba K. 2002. La flore adventice dans le sud du bassin arachidier (Sénégal) : structure, dynamique et impact sur la production du mil et de l’arachide. Thèse de doctorat d’état en Sciences Naturelles, 137p.

Noba K, Ba A.T, Caussanel J.P, Mbaye M.S, Barralis G. 2004. Flore adventice des cultures vivrières dans le sud du Bassin arachidier (Sénégal). Webbia.59: 293-308.

Sarr S, Mbaye M.S, Ba A.T. 2007. La flore adventice des cultures d’oignon dans la zone péri-urbaine de Dakar (Niayes) Sénégal. Webbia. 62: 205-216.

Traoré H, Maillet J. 1992. Flore adventice des cultures céréalières annuelles du Burkina Faso. Weed Res. 32: 279-293.

Yildirim N, Turna I. 2016. Some Botanical Features of Weed Species Prevailing in Forest Nursery of Trabzon Province. Turk J Weed Sci. 18: 6-14.

Journal of Research in Weed Science

Taxonomic diversity and abundance of weed flora in upland rice fields of Southern Groundnut Basin, Senegal

References

References

Volume 3, Issue 1
March 2020
Pages 48-56

Taxonomic diversity and abundance of weed flora in upland rice fields of Southern Groundnut Basin, Senegal

References

References

Volume 3, Issue 1March 2020Pages 48-56

Volume 3, Issue 1
March 2020
Pages 48-56