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Not AvailableA field experiment was conducted to study effect of plant density and foliar spray of nutrients on carrot (Daucus carota L.) seed yield and quality during winter season of 2012-13 and 2013-14. Plant height, days to 50% flowering, number of umbels/plant, number of seeds/umbel, seed yield/umbel, percentage contribution of different order umbel to total seed yield, seed yield/plant, seed yield/ha, 1 000 seed (mericarp) weight, germination (%) and vigour index were recorded. Significant highest average plant height, earliness in days to 50% flowering and seed yield/ha (12.9 q) were observed in high plant density (13 plants/m2). More number of secondary (11.6) and tertiary umbels (30.1) and higher seed yield/plant (25.2g) were recorded in low plant density (4 plants/m2). Per cent contribution of primary umbel to total seed yield was maximum (41.76%) in 13 plants/m2 and minimum (16.89%) in 4 plants/m2. But an increasing trend in contribution percentage to total seed yield by secondary and tertiary umbels was recorded from 13plants/m2to 4plants/m2.Seeds from primary and secondary umbels recorded high quality in plant density of 5 plants/ m2 and 4 plants/m2 respectively.Comparative reduction in pooled seed vigour was observed in 7 plants/m2 and 13 plants/m2. Foliar spray of 0.1% MgSO4at 30 and 60 days after transplanting (DAT) increase the seed quality. Both seed yield and qualityincrease was observed in 0.1% borax spray at 30 and 60 DAT.Not Availabl