Incidence de la bactérie Xhantomonas oryzae pv oryzae sur la production du riz (Oriza sativa L.) au Niger
Incidence of Xhantomonas oryzae pv oryzae on the Production of Rice (Oriza sativa L.) in Niger. Rice bacterial blight due to Xhantomonas oryzae pv. oryzae is one of the diseases causing economic damage on rice in Niger. Investigations were led in the two most important irrigated rice producing areas...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Presses Agronomiques de Gembloux
2013-01-01
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| Series: | Tropicultura |
| Subjects: | |
| Online Access: | http://www.tropicultura.org/text/v31n3/200.pdf |
| Summary: | Incidence of Xhantomonas oryzae pv oryzae on the Production of Rice (Oriza sativa L.) in Niger. Rice bacterial blight due to Xhantomonas oryzae pv. oryzae is one of the diseases causing economic damage on rice in Niger. Investigations were led in the two most important irrigated rice producing areas (along the river Niger and the river Komadougou yobé) in order to evaluate its importance. It comes out from the study that bacterial blight is present in both rice producing areas, with a prevalence of 10 to 75% and production losses ranging from 19 to 63%, which amounts from 200.000 to more than 500.000 FCFA/ha. It was noted that some cultural practices such as phased transplanting favor the development of bacterial outbreaks. The search for alternative hosts to the bacterium made it possible to identify 13 species. These hosts belong to Poaceae (more than 80%) and Cyperaceae (nearly 20%) families. |
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| ISSN: | 0771-3312 |