Diseases

Regions where the Choke Disease was registered on wheat (Epichloe typhina Tul.)

Object description Download GIS-layers

Authors:

Specialist-biologist E.I.Gultyaeva,
GIS-specialist M.I.Saulich

Date of creation:

16.10.2003

Scale:

1:20 000 000

Accuracy of map:

It is created on materials of map 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. It consists of one layer characterizing the Choke Disease distribution on wheat. The disease focus is presented by polygon.

Accuracy of the classifier:

Zone where the Choke Disease was registered on wheat is allocated by results of the analysis of open published materials.

Procedure of map drawing:

Locality of the only revealed Choke Disease focus was determined by result of analysis of local publications. Definition of the disease distribution was carried out on vector layer of wheat growing regions. The blank map with outlines of area was scanned. Registration and vectoring of raster map were performed by standard tools of current GIS-tecnologies.

Related references:

Gorlenko M.V. 1951. Wheat diseases.-Moscow.- 256 pp. (in Russian).
Pshedskaya L.I. 1971. Physiological and ecological peculiarities of Epichloe typhina Tul. strains // Trudy instituta zashity rastenii. . Leningrad. - V.29. . P. 36-40 (in Russian).
Vladimirskaya N.N. 1928. To the biology of Epichloe typhina Tul. // Bulleten Postoyannogo Buro Vserossiiskikh Entomo-Fitopatologicheskikh S.ezdov. . Leningrad. - Vol.5. . No.3-4 - P. 335-347 (in Russian).

Right and copyright:

All rights reserved. Copyright 2003© E.I.Gultyaeva & M.I.Saulich (vector map and description); E.I.Gultyaeva (photo).