Diseases

Area and zones of severity of Sunflower Verticillium Wilt (Verticillium dahliae Kleb.)

Object description Download GIS-layers

Authors:

Object specialist is V.I.Yakutkin, GIS - M.I.Saulich.

Date of creation:

2.12.2004.

Scale:

1:20 000000.

Accuracy of map:

It is created on the published materials and map of scale 1:33 000 000.

Projection:

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

Basic contents:

Vector map having three layers where the area of sunflower and zones of severity of Verticillium Wilt are shown by polygons.

Accuracy of the classifier:

In the limits of sunflower area, two zones of severity of Verticillium wilt are determined. The first is the zone of low severity, where crop losses reach 10% on the average. It includes Central Black Soil Zone, some regions of the Middle Volga Basin region, Ural, Western and Eastern Siberia, the Far East of Russia and central and northern provinces of Ukraine. The second is the zone of moderate severity, where crop losses reach 25%. It includes the Northern Caucasus, Volga Basin region (Saratov and Volgograd Regions) of Russia, Kazakhstan, southern provinces of Ukraine and Moldova.

Procedure of map drawing:

Published materials are used for map drawing (Tselle, 1932; Tikhonov, 1975; Kukin, 1982; Yakutkin, 2001). The registration and vectoring of raster map are carried out by standard means of GIS-technologies.

Sources of the data:

Kukin V.F. 1982. Diseases of sunflower and their control. . Moscow: Kolos, 80 p. (in Russian)
Tikhonov O.I. 1975. Diseases of sunflower. In: Pustovoit V.S., ed. Sunflower. Moscow: Kolos, p. 401-409 (in Russian)
Tselle M.A. 1932. Diseases of sunflower. Leningrad: USU OBV, p. 10-13 (in Russian)
Yakutkin V.I. 2001. Diseases of sunflower in Russia and their control. Zashchita i karantin rastenii 10: 26-29 (in Russian)

Right and copyright:

All rights reserved.
Copyright 2004 © V.I.Yakutkin (VIZR, description and picture); V.I.Yakutkin and M.I.Saulich (VIZR, vector map).