Diseases
Distribution of Rye Pink Snow Mold. The causal agent - Microdochium nivale (Fr.) Samuels & I.C. Hallett (Fusarium nivale Ces. ex Berl. and Voglino).
Object description Download GIS-layers
Authors:
Specialist-biologist A.P.Dmitriev, GIS-specialist M. I.Saulich.Date of creation:
10.08.2004.Scale:
1:20 000 000.Accuracy of map:
It is created on materials of maps of natural scale 1: 33 000 000.Projection:
"Alber.s Equal Area Conic", 9, 1001, 7, 100, 0, 44, 68, 0, 0.Basic contents:
Vector map. It consists of 3 layer characterizing the disease distribution and severity zones on rye.Accuracy of the classifier:
On the map the zones of Rye Snow Mold distribution and severity are presented. Snow Mold is present in all regions of rye cultivation. It is possible to identify 2 zones of severity; high one, where the average losses for the long-term period are more than 12% (30% max. in different regions), and the disease development is to 50% one time for 10 years; and moderate severity, where the average losses for the long-term period are to 5% (10% max. in different regions), and the disease development is to 25% two times for 5 years.Procedure of map drawing:
The zone of distribution is identified by results of the analysis of the published data on the fungus distribution (Sidorova, 1971; Nazarova 2000; Ishkova et al., 2002). The zones of severity are identified on the basis of S.F. Sidorova (1971) data with specifications by L.N. Nazarova et al. (2000).Sources of the data:
Ishkova T. I., Berestetskaya L. I., Gasich E. L., Levitin M. M. & Vlasov D. Yu. 2002. Diagnostics of the main fungal diseases of cereal crops. St. Petersburg: VIZR. 76 p. (in Russian)Nazarova L. N., Dymchenko A. M., Polyakova T. M., Zhokhova T.P. 2000. System of winter rye protection from snow mould. Agro XXI 7: 2-3 (in Russian)
Sidorova S. F. 1971. Snow mould of winter crops. A technique of the territorial long-term forecasting of plant diseases. Leningrad: VIZR. p. 48-49 (in Russian)
Right and copyright:
All rights reserved. Copyright 2004 © A. P.Dmitriev,M. I.Saulich (map and description).