Forecasting of vegetable arrivals and prices gain more significant because of its perishability and seasonality. Adequate information on prices and arrivals would bridge the gap between production and marketing. The secondary data regarding monthly arrivals (qtls) and prices (Rs/qtl) of tomato and onion were collected for a period of 8 years (2011-2018). Forecasting was done using SARIMA models for next 6 months. SARIMA (3, 0, 3) (3, 0, 2)12 and (2, 2, 2) (1, 0, 1)12 were the best model for forecasting the tomato arrivals and prices while SARIMA (1, 2, 3) (1, 2, 2)12 and (2, 0, 3) (2, 0, 3)12 were the best model for forecasting the onion arrivals and prices in Koyambedu (Chennai) market respectively. The actual and predicted values of vegetable arrivals and prices were similar to each other except tomato arrivals. Tomato arrivals were high in the month of February (106369 qtls) whereas peak prices (Rs 1966/qtl) were in the month of January. The peaks of onion arrivals (162534 qtls) were noticed in the Month of January whereas prices (Rs 4211 /qtl) were high in June among the forecasted values.

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