Effect of Dates of Sowing and Nitrogen Treatments on Yield and Physiological Performance of Indian mustard [Brassica Juncea (L)]

Abstract

Experiments were conducted during rabi 2013-14 and 2014-15 to ascertain the effect of dates of sowing and nitrogen treatments on yield and physiological performance of Indian mustard at research farm, college of Agriculture, Hisar (Haryana). The experiment was laid out in split plot design with three replications consisted four dates of sowing viz., October 15, October 25, November 5 and November 15 and five nitrogen levels viz., 0 , 40, 60, 80 and 100 kg N/ha as main and sub plots, respectively. Results revealed that successive delay in sowing with 10 days interval significantly decrease the LAI, total dry matter production (TDM) per plant, relative water content, Osmotic potential and water potential, Whereas, canopy temperature, and canopy temperature depression (CTD) increased with delay in sowing significantly but turgor potential was non significant. Among the nitrogen levels, successive increase in nitrogen had significant positive effect on LAI and TDM per plant at all the growth stages. October 15 sowing crop produced significantly higher yields as compared to October 25, November 5 and November 15. Among the doses of nitrogen, 100 kg N/ha exhibited significantly higher yields followed by 80, 60, 40 and 0 kg N/ha.