Evaluation of Cercospora oryzae Miyake under natural pressure conditions.

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AuteurSOURA, HERVE
AuteurGNANCADJA, SIMPLICE LEOPOLD ANDRE
AuteurKOITA, KADIDJATOU
AuteurGANDONOU, CHRISTOPHE BERNARD
AuteurBABA MOUSSA, FARID ABDEL KADER SAID
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2021
ResumeObjective: This study is a contribution to the knowledge of Cercospora oryzae Miyake, in order to increase yields. It will consist in: i) evaluating the resistance of five varieties of rice, ii) evaluating the effect of Cercospora oryzae Miyake on the leaf and panicle stages and iii) evaluating the yield. Methodology and results: The study will combine phenotypic and agromorphological tools. On the ninety first (91th) day after sowing, a high incidence of leaf Cercosporiosis was recorded on the varieties TS2 (29.74%), FKR34 (27%) and a very low incidence on the variety ORYLUX6 (5, 78%). From tillering to panicle initiation, the rate of progression of the epidemic r2 = 0.879 is significant in TS2. The ORYLUX6 variety is the most capable of slowing the progression of the epidemic. At the panicular level, from the pasty grain stage to the milky grain stage, the incidence has increased for most of the varieties. The ORYLUX6 recorded the highest yield with 4.38 t/ ha. Conclusion and application potential of the results: Cercospora oryzae Miyake causes a drop in yieldby reducing the leaf area of thr leaves. Cercospora oryzae Miyake is an important disease of rice in Sud- Benin. These results constiyute a stage of an in-depth research work on the characterization (agronomic and genetic) of Cercospora oryzae Miyake in order to propose methods of control.
Autre identifiantBECDB-9879
URIhttps://dspace.uac.bj/handle/123456789/8799
Languefr
Fait partie deJournal of Applied Biosciences
SujetCercospora oryzae
Sujetincidence
Sujetyield
Sujetrice
SujetBénin
TitreEvaluation of Cercospora oryzae Miyake under natural pressure conditions.
TypeArticle

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