Role of Gompertz model in selection of Brassica group for resistance against Alternaria blight under epidemic areas
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Authors
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M.S. SANGWAN, NARESH MEHTA, O.P SHARMA* and A. DHANDAPANI*
CCS Haryana Agricultural University, Hisar 125 004
Keywords:
Gompertz model, Alternaria blight, forecasting, BrassicasAbstract
The Gompertz model effectively uses two significant factors (A and B) drawn from analysis of weather parameters and disease progress. It was tested as a method of Alternaria brassicae disease forecasting in 62 Brassica cultivars/genotypes grown during 1997-98. Results showed that the model can serve as an effective tool for decision making in selection of Brassica group for sowing in disease epidemic areas as well as for timing protection measures under conducive climatic factors.
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