Diseases

Area of Barley Spot Blotch - Bipolaris sorokiniana (Sacc.) (Cochliobolus sativus).

Object description Download GIS-layers

Authors:

Object specialist O.S. Afanasenko, GIS-specialist M.I. Saulich.

Date of creation:

30.11.2003.

Scale:

1:20 000 000.

Accuracy of map:

Created using maps of natural scale 1:40 000 000.

Projection:

"Alber's Equal Area Conic for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0.

Basic contents:

Vector map. Area of disease distribution and zones of harmfulness are shown by polygons.

Accuracy of classifier:

Area of distribution and zones of disease severity were determined from an analysis of open published materials. Zone of disease severity was subdivided into zones of high disease severity (disease occurs > 3-4 times per decade) and low disease severity (< 3 times per decade). The life cycle of the pathogen and on its host-plants were determined according to: (Ishkova, et al., 2000), (Mathre, 1997). Zones of the disease harmfulness were determined according to: (Ishkova, et al., 2000), (Sanin, 1995), (Kashemirova, 1995), (Hasanov, 1992),(Novozhilov & Zakharenko, 2000).

Method of map production:

Published literature was reviewed, including Atlases, monographs and papers. Occurrence data were obtained from herbarium specimens, floras, monographs and papers. Data were then compiled through scanning and geo-referencing to develop a composite vector map. The biologist together with the GIS specialist, drew a composite disease distribution area based on compiled data.

Reference Citations:

Hasanov B.A. 1992. Imperfect fungi as a causal agents of the main cereal diseases in Middle Asia and Kazakhstan// Abstract of Doctor Theses. Moscow. 44 pp. (In Russian)
Ishkova T.I., Berestetskaya L.I., Gasich E.L., Levitin M.M., Vlasov D.Yu. 2000. Diagnostics of the main diseases of cereals. St. Petersburg. 76 pp. (In Russian)
Kashemirova L.A. 1995. Phytosanitary diagnostic systems of spring barley protection against spot and net Helminthosporium blotches // Abstract of PhD Theses. Bolshie Viazemi. 33 pp. (In Russian)
Mathre D.E., ed. 1997. Compendium of barley diseases. St. Paul, Minnesota: APS PRESS. 90 pp.
Novozhilov K.V., Zakharenko V.A., ed. 2000. Levels and tendencies of variability of species composition and intrapopulation structure, areas of complexes of harmful and useful organisms and forecast of dangerous phytosanitary situations in zones of the country. St. Petersburg. 100 pp. (In Russian)
Sanin S.S. 1995. Phytosanitary monitoring: modern state and ways of improvement. In: Novozhilov K.V., editor. Problems of Optimization of Phytosanitary State in Plant Industry. Proceeding of All-Russian Meeting on Plant Protection. St. Petersburg. 166-175 pp. (In Russian)

Right and copyright:

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Kelnik studios

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