Diseases
Area of distribution and severity zone of the Loose Smut of Sorghum (Sphacelotheca cruenta) .
Object description Download GIS-layers
Authors:
Object specialists A.I. Silaev,GIS-specialist M.I. Saulich.
Date of creation:
10.02.2008.Scale:
1:20 000 000.Accuracy of map:
It is created on information taken from the open-published literature and maps of scale 33 000 000.Projection:
"Alber's Equal Area Conic for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0.Basic content:
Vector map consisting of 2 layers. Area and zone of severity are shown by polygons.Accuracy of the classifier:
The disease area is allocated within the limits of Sorghum bicolor, S. saccharatum, and S. sudanense growing. Single zone of low severity is allocated according to the modern criteria (Silaev, 2005) in regions where crop losses are usually less than 1%.Method of map production:
The map is compiled after analysis of the open published materials (Zaprometov, 1917; Gutner, 1941; Doshimov, 1982; Silaev, 2005). Range of the Loose Smut of Sorghum occurrence coincides with area of its host crops, namely Sorghum and Sudan grass, being corrected after a vector map compiled by N.V. Terekhina (2005). The zone of low severity includes Moldova, Ukraine (except its north-western part), Transcaucasia, and Central Asian Region of the former USSR. The zone of low severity includes also territory of Sorghum and Sudan grass growing in the Russian Federation, i.e., the North Caucasus, the south of Central Chernozem Region, as well as East Siberia and the Russian Far East.Reference citations:
Doshimov U.D. 1982. Sorghum smut fungi. Tashkent: Fan, 68 p. (in Russian).Gutner L.S. 1941. Smut fungi. Moscow, 383 p. (in Russian).
Silaev A.I. 2005. Biological and toxicological substantiation of adaptive protection of sorghum from smut diseases in the Volga Region. PhD Thesis. St.Petersburg: VIZR, 47 p. (in Russian).
Terekhina N.V 2005. The area of sweet sorghum (Sorghum saccharatum Pers.). www.agroatlas.ru
Terekhina N.V 2005. The area of broomcorn (Sorghum_bicolor). www.agroatlas.ru
Terekhina N.V 2005. The area of Sudan grass (Sorghum sudanense (Piper.) Stapf). www.agroatlas.ru
Zaprometov N.G. 1917. List of cultivated plants in Turkestan, recorded from 1912 to 1916. Tashkent, 21 p.