'' '' '' ''

Abstract                 Volume:4  Issue-4  Year-2017          Original Research Articles

IJCRBP is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCRBP Articles.

Online ISSN : 2349-8080
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorinchiefijcrbp@gmail.com

Diversity, Genetic Erosion and Participatory Evaluation of Rice (Oryza sativa L. and Oryza glaberrima Steud) Varieties in Benin
T.C. Odjo1, I. Dossou-Aminon1, 2*, A. Dansi1,2 and H. W. Djengue1
1Laboratory of Biotechnology, Genetic Resources and Plant and Animal Breeding (BIORAVE), Faculty of Sciences and Technology of Dassa, BP143, Dassa, Benin
2Institute of Research, Training and Development on Crops, Animals and Medicinal plants (IRDCAM), 071 BP 28 Sainte Rita, Cotonou, Benin
*Corresponding author

Rice, is one of the most important food crops that significantly contributes to food security in Benin. To assess its varietal diversity within the country, 55 villages randomly selected throughout different agro-ecological zones were surveyed using participatory research tools and techniques. Subject to synonymy, 95 varieties including 2 African rice (Oryza glaberrima) and 93 Asian rice (Oryza sativa) were inventoried. The Shannon Diversity Index (H) is 5.62 and reflects an important varietal diversity. The number of varieties recorded varies from 2 to 9 per village (4 on average). In villages where varietal diversity is threatened, the rate of loss, subject to synonymy, varied from 25% to 75% with an average rate of 41% per village. Across villages, the varieties to be produced are selected on the basis of sixteen (16) preference criteria, of which the most important are high productivity (18.22% responses), market value (14.52% of responses), early maturity of varieties (10.48% of responses) and taste (6.92% of responses). Thirteen (13) production constraints were reported by the producers and most of them can be overcomed by the use of high-performing varieties. Participatory evaluation revealed very few effective varieties with regard to biotic and abiotic parameters. The development in Benin of a strong and concerted national rice breeding program is necessary and will help creating novel varieties that will boost national production, food security and income generation.

Keywords: Participatory evaluation, Preference criteria, Rice, Varietal diversity
Download this article as Download

How to cite this article:

Odjo, T.C., Dossou-Aminon, I., Dansi, A., Djengue, H. W., 2017. Diversity, genetic erosion and participatory evaluation of rice (Oryza sativa L.and Oryza glaberrima Steud) varieties in Benin.Int.J.Curr.Res.Biosci.Plantbiol. 4(4): 147-164. doi: https://doi.org/10.20546/ijcrbp.2017.404.021
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.