Diseases
Distribution of Rye Common Bunt Tilletia secalis (Cda.) Koern.
Object description Download GIS-layers
Authors:
Specialist-biologist A.P. Dmitriev, GIS-specialist M.I. Saulich.Date of creation:
10.05.2004.Scale:
1:20 000 000.Accuracy of map:
It is created on materials of maps of natural scale 1: 33 000 000.Projection:
"Alber.s Equal Area Conic", 9, 1001, 7, 100, 0, 44, 68, 0, 0.Basic contents:
Vector map. It consists of one layer characterizing the disease distribution on wheat.Accuracy of the classifier:
The zone of Rye Bunt distribution coinciding with regions of rye cultivation is shown on the map.Procedure of map drawing:
The zone of distribution is identified by results of the analysis of the published data on fungus distribution (Karatyghin, 1986; Ishkova et al., 2002; Levitin & Tuterev, 2003). The zone of severety is not marked as the real level of severity depends mainly on maintenance of preventive measures, i.e., seeds treatment rather than on climatic conditions (Anon., 1999; Levitin & Tuterev, 2003). The blank map with image of the disease distribution zone has been scanned. Registration and vectoring of its raster copy have been fulfilled by standard facilities of GIS-technologies.Sources of the data:
Anon. 1999. Smuts of rye, oats and barley. Zashchita rastenii i karantin 7: p. 31 (in Russian).Ishkova, T.I., Berestetskaya, L.I., Gasich, E.L., Levitin, M.M. & Vlasov, D.Yu. 2002. Diagnostics of the main fungus diseases of cereal crops. St. Petersburg: VIZR. 76 p. (in Russian).
Karatygin, I.V. 1986. Smuts of cereal crops. Leningrad: Nauka. 112 p. (in Russian).
Levitin, M.M. & Tyuterev, S.L. 2003. Fungal diseases of cereals crops. Zashchita rastenii i karantin 11: 77 (in Russian).