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Plant Pathology Journal
  Year: 2018 | Volume: 17 | Issue: 2 | Page No.: 87-94
DOI: 10.3923/ppj.2018.87.94
Development of Rice Yellow Mottle Disease Depending on Topographic Positions of the Lowland in Côte D’Ivoire
Guinagui N`doua Bertrand , Sorho Fatogoma and Koné Brahima

Abstract:
Background and Objective: The development of rice cultivation in Côte d'Ivoire is based on the naturally more productive flooded system. The objective of this study was to examine the development of rice yellow mottle virus (RYMV) according to topographic positions. Materials and Methods: The rice varieties Nerica L19, Orylux 6 and Wita 9 were used during this work. The development of rice yellow mottle rice was assessed according to a stratified random sampling per topographic position with two factors. RT-PCR enabled detection of RYMV in the collected rice leaf samples. Results: The results revealed a downstream disease development gradient with an incidence of 63.33% compared to the upstream one which was 36.85% at the longitudinal position of the lowland. The interaction between the positions of the lowland indicated incidences of 64.00 and 62.67%, respectively in Downstream/Middle and Downstream/Border. The study also found a positive correlation of 93.6% between the depth of runoff and the incidence of the disease. Conclusion: One of the means for controlling RYMV might be based on a good leveling and drainage during crop cycles in the rainy season.
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How to cite this article:

Guinagui N`doua Bertrand, Sorho Fatogoma and Koné Brahima, 2018. Development of Rice Yellow Mottle Disease Depending on Topographic Positions of the Lowland in Côte D’Ivoire. Plant Pathology Journal, 17: 87-94.

DOI: 10.3923/ppj.2018.87.94

URL: https://scialert.net/abstract/?doi=ppj.2018.87.94

 
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