Diseases
Area of distribution and severity zones of Fusarium oxysporum f. sp.vasinfectum W.C.Snyder & H.N. Hansen
Object description Download GIS-layers
Authors:
Object specialist is V.I.Yakutkin,GIS specialist is M.I. Saulich.
Date of creations:
09.01.2008.Scale:
1:20 000 000.Accuracy of map:
It is created on 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 distribution area and zones of severity are shown by polygons.Accuracy of the classifier:
In the low severity zone, the disease shows sporadically and yield losses reach 15%. Yield losses can reach 50% in the zone of high severity at regular affection by the disease.Method of map production:
Published materials are used for map drawing (Dobrozrakova, 1966; Gorlenko, 1968; Goshaev, 1970; Menlikiev, 1973). In the disease area, two zones of Fusarium Wilt severity are determined. The zone of moderate severity covers southern part of Uzbekistan where the fine-fibrous cotton is growing. The zone of high severity includes Turkmenistan and some places of Tajikistan. Specification of the distribution area is made on vector map of cotton greatest distribution according to I.E. Koroleva et al. (2003).Reference citations:
Gorlenko M.V. 1968. Agricultural Phytopathology. Moscow: Visshaya shkola, 434 p. (In Russian).Goshaev D. 1970. Fusarium wilt of fine-fibrous cotton and agrotechnical measures in its control in conditions of Murgab oasis of Turkmen SSR. Abstract of PhD Thesis. Leningrad: VIZR, 17 p. (In Russian).
Dobrozrakova T.L. 1966. Agricultural Phytopathology. Leningrad: Kolos, 328 p. (In Russian).
Koroleva I.E., Vilchevskaya E.V., Ruhovich D.I. 2003. Computer map distributions of cotton. Moscow: Laboratory of the soil information Dokuchaev institute of agricultural soil. (In Russian).
Menlikiev M.Ya. 1973. Investigation of Fusarium wilt of fine-fibrous cotton, development and substantiation of measures, their industrial checking in Tajik SSR. Abstract of PhD Thesis. Leningrad: VIZR, 41 p. (In Russian).