Grain yield of aerobic ice (Oryza sativa) and path coefficient analysis with its attributing components under varying irrigation regimes and nitrogen levels

Abstract

A field experiment was conducted on aerobic rice (Oryza sativa) during summer seasons of 2013 and 2014 at Regional Research and Technology Transfer Station, Chiplima, Sambalpur, Odisha in order to determine grain yield of aerobic rice (oryza sativa) and path coefficient analysis with its attributing components under varying irrigation regimes and nitrogen levels. The results revealed that aerobic rice needs to be irrigated at 5 days interval with the application of nitrogen at 80 kg ha-1 produced economically higher productivity (3.22t ha-1)in western region of Odisha. It was concluded that significantly higher positive correlations (>0.931)between grain yield and its attributes as wellas among different attributes at 1% level of significance. The regression coefficients of all the equations are negative that indicates that for all the equations there exists a maximum value for the yield.