Preliminary studies on the occurrence of the foliar nematode aphelenchoides besseyi christie in rice seeds in burkina faso
International Journal of Development Research
Preliminary studies on the occurrence of the foliar nematode aphelenchoides besseyi christie in rice seeds in burkina faso
Received 04th December, 2016; Received in revised form 19th January, 2017; Accepted 27th February, 2017; Published online 31st March, 2017
Copyright©2017, Bouma Thio et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Rice is a strategic crop for Burkina Faso but the performance of improved varieties is limited by both abiotic (rainfall and soils) and biotic (insects and diseases) factors. The negative impact of the parasitic nematodes on the productivity of rice varieties was identified by many studies. The objective of the current study was to evaluate the occurrence of the foliar nematode Aphelenchoides besseyi Christie in rice seed samples from the 3 main rice-growing ecologies in Burkina Faso. One hundred forty five (145) seed samples were collected at 51 locations of rice produced during the rainy season of 2014-2015 and analyzed for the presence of foliar nematode A. besseyi. The results showed respectively 64.3%, 58.6% and 28.9% occurrence of the foliar nematode in the seeds from upland, lowland and irrigated ecologies. These results varied from the Sudanian zone (39.3%) to the Sudan-sahelian zone (44.0%). The results showed maximum populations of the nematode A. besseyi of 85 individuals per 100 seeds according to rice ecology and the agroclimatic zone of Burkina Faso.
