National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present study was carried out to make a suitable forecast model that predicts yield loss occurred due to weeds in wheat crop. The data were taken from the annual report of AICRP-WM centres. Gwalior and Pusa are the two centres in which the work has been carried out. Weed density and weed dry weight were two weed infestation measurements that were considered for model fitting. Simple linear, quadratic and cousens (1985) proposed hyperbolic model were tested. In AICRP-WM Gwalior, for independent variable weed density simple linear model and for weed dry weight quadratic model was find the best fit model but the validation of models indicates these model does not predict the yield loss accurately. In data of AICRP-WM centre Pusa for independent variable weed density, simple linear model and for weed dry weight quadratic model was find the best fit models. Validation of these models shows that the above mention models were accurately predicting the yield loss.
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