Abstract
The Ceylon Journal of Science is published by the University of Peradeniya, Sri Lanka. Full text available. The journal also has its own website. The Ceylon Journal of Science is a continuation of the Ceylon Journal of Science (Biological Sciences) which is no longer being published as a separate journal. The history of the journal can be found here.From May 2020, Ceylon Journal of Science is indexed in DOAJ.
Highlights
Rice (Oryza sativa L.) crop in tropical environments is constrained by biotic stresses; where, diseases are at upfront along with the conventional management of crop using high densities, irrigation, and high nitrogen
The degree of the disease occurrence was evaluated by calculating the Area Under the Disease Progress Curve (AUDPC)
Nitrogen fertilizer influenced the determination of the disease incidence index in both seasons and its effect was greatest during 64-72 days after sowing
Summary
Rice (Oryza sativa L.) crop in tropical environments is constrained by biotic stresses; where, diseases are at upfront along with the conventional management of crop using high densities, irrigation, and high nitrogen. Narrow Brown Leaf Spot (NBLS), a fungal disease caused by the pathogen Passalora janseana which will infect to leaf lamina, mid-vein, leaf sheath, panicle, seed coat, and glumes of the rice plant. In certain regions, NBLS is a critical disease with an economic significance (Department of Agriculture, Sri Lanka, 2019). The agronomic management of a crop is the fundamental basis for maintaining the hygiene of the crop, which has a direct impact on disease incidence. At the farmers’ level, fertilizer management, weed management, and the planting density substantially may vary from the recommendation, the incidence of diseases could have differed
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