Diseases
Area of distribution and severity zone of the Head Smut of Sorghum (Sorosporium reilianum) .
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 3 layers. Area and zones of severity are shown by polygons.Accuracy of the classifier:
The disease area is shown within the limits of Sorghum bicolor, S. saccharatum, and S. sudanense growing. Two zones of severity are allocated according to the modern criteria (Silaev, 2005). In the zone of low severity, yield losses are usually less than 1%, while in the zone of high severity they exceed 5%.Method of map production:
The map is compiled by results of the analysis of the open published materials (Yachevskii, 1917; Gutner, 1941; Doshimov, 1982; Silaev, 2005). Range of the Dust Head Smut of Sorghum occurrence coincides with area of its host crops, corrected after a vector map compiled by N.V. Terekhina (2005). The zone of high severity includes almost all North Caucasus, as well as Low and Middle Volga including southern part of Samara Region. In addition, high severity occurs in Central Asia of the former USSR (Turkmenistan, Uzbekistan, and southern Kazakhstan). Low severity occurs in other regions of the disease area from western Ukraine to Russian Primorskii Territory.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. N.V. 2005. The area of Sudan grass (Sorghum sudanense (Piper.) Stapf). www.agroatlas.ru
Yachevskii A.A. 1917. The yearbook of the data on diseases and their damage to cultural and wild-growing useful plants. 1911-1912. Petrograd, 463 p. (in Russian).