Effect of aqueous extract of sorghum and sunflower on field emergence and growth parameters of wheat and Phalaris minor

Abstract

A field experiment was carried out in G.B Pant University of Agriculture and Technology, Pantnagar during rabi season of 2018-19 to find out the effect of aqueous extracts of sorghum and sunflower on growth parameters of wheat and Phalaris minor, as well as their effects on yield of wheat. The experiment was conducted with eight treatments, each with three replications in Randomized Block Design (RBD). Treatment containing pre fb early post-emergence application of sunflower extract recorded lower emergence and no of shoots/m2 of Phalaris minor. The treatments had non significant effect on the emergence of wheat. Weed free plot had highest no of shoots/m2 of wheat, which was at par with pre fb early post-emergence application of sunflower extract in every stage of plant growth. The grain yield of weedy, pre fb early post emergence application sorghum, pre fb early post emergence application sunflower, weed free plot was recorded as 2331, 4126, 4385, 5137 kg/ha respectively.