%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Cabasan, M. T. N.
%A Bellafiore, Stéphane
%A Kumar, A.
%A De Waele, D.
%T The effect of temperature on resistance in african rice (oryza glaberrima steud.) genotypes to the rice root-knot nematode meloidogyne graminicola
%D 2016
%L fdi:010069471
%G ENG
%J Nematropica
%@ 0099-5444
%K damage potential ; Oryza ; reproductive potential ; susceptible ; yield loss
%K AFRIQUE ; ASIE
%M ISI:000396339100012
%N 2
%P 221-228
%U https://www.documentation.ird.fr/hor/fdi:010069471
%> https://www.documentation.ird.fr/intranet/publi/2017/05/010069471.pdf
%V 46
%W Horizon (IRD)
%X The rice root-knot nematode, Meloidogyne graminicola, has emerged as a serious soilborne pathogen of rice in most Asian countries. The host response of the M. graminicola-resistant African (Oryza glaberrima) rice genotypes TOG5674, TOG5675, and CG14 was examined at two day/night temperature regimes, 29/26 degrees C and 34/31 degrees C. At the 34/31 degrees C regime, second-stage juvenile population densities in roots of the African rice genotypes increased significantly compared to those of plants grown at the 29/26 degrees C regime, suggesting that the resistance to M. graminicola became ineffective at the latter temperature regime. An increase in temperature also resulted in a significant reduction in all yield-contributing traits and yield of the three African rice genotypes. High variability was recorded in terms of percentage reduction of all traits measured among the genotypes examined at the 34/31 degrees C, compared to the 29/26 degrees C regime. However, the highest reduction was for yield.
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