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Development of a forecasting model for scald, Rhynchosporium secalis , on rye in relation to climatic conditions 1
Author(s) -
WERRES G.,
HINDORF H.
Publication year - 1991
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1991.tb01279.x
Subject(s) - christian ministry , winter wheat , secale , agriculture , discriminant function analysis , outbreak , fungicide , agricultural engineering , environmental science , agronomy , agricultural science , biology , mathematics , statistics , engineering , ecology , political science , law , virology
In a large‐scale forecasting project financed by the German Ministry of Agriculture, in collaboration with the National Plant Protection Service, data for modelling forecasting systems in field and horticultural crops are obtained and evaluated. Using climatic records from automatic weather stations and weekly disease assessments in the field, a practical model for forecasting Rhynchosporium secalis on rye has been established with a discriminant function in which temperature, leaf wetness and a disease index during the infection period were used as classification variables. This function decides on application of fungicide sprays.