Field experiment was carried out at Instructional Dairy Farm, G B pant University of Agriculture and Technology, Pantnagar during winter season of 2016– 17 to study the effect of promising entries and nitrogen
levels on yield and quality of oat (Avena sativa L.). The experimental site was sandy loam with neutral soil pH and available nitrogen, phosphorus and potassium were 278.5, 27.7 and 232.8 kg/ha, respectively. The experiment consisted of 11 oat entries i.e. Kent, OL– 1766–1, OL–1802, UPO–10–3, OS–6, SKO–225, OL– 1769–1, OS–424, OS–432, JO–04–19 and OL–125 in main plot and 03 N levels i.e. 40, 80 and 120 kg/ha in sub plot was laid out in split plot design with three replications. The 50% flower, the plant height, number of tillers/m row length, green and dry fodder yield were affected significantly by oat entries (Table 2). The maximum and minimum days to 50% flowering were observed under
OS–6 and OL–1802, respectively. Significantly tallest plants were found under OS–432, while OS–424 gave the shortest plants. Entry JO–04–19 gave the highest green and dry fodder yield followed by OS 424. The
highest and the lowest CP were recorded in OL–1802 and OS 424 entries. The green and fodder yield, CP and NDF increased from 40 to 80kg N/ha, while ADF was recorded lowest at 120 kg N/ha.

Keywords: Oat (Avena sativa L); Crude protein; NDF; ADF.