Effects of Seed Rate and Planting Dates on Seed Yield and Yield Components of Plantago ovata in Dry Farming

This study was conducted to investigate planting date and seed rate on blond psyllium)Plantago ovata Forsk.) in dry land condition. This experiment was designed in a split plot arrangement using complete randomized block design with three replications in Maraveh- tapeh station in Golestan province. The treatments comprised two planting dates and three seed rates: 2, 4 and 6 Kg/ha. Planting date had no significant effect on spike length, number of spikes per plant and number of seed per spike but seed rates effect was significant p< 0.05, p< 0.01, p < 0.01 respectively. Results indicated that seed rates had significant difference (p < 0.05) on seed yield so that the highest yield obtained at the highest seed rate (6 Kg/ha) while planting date had no significant effect on seed yield.