Verma, OmvatiOkram, Ricky Devi2021-11-262021-11-262021-11https://krishikosh.egranth.ac.in/handle/1/5810178351A laboratory as well as field experiment was conducted on wheat variety UP-2526 during Rabi season 2020-2021 to find out the response of late sown wheat (Triticum aestivum L.) to seed treatment and foliar application of KJ under different dose of nutrients at the N. E._Borlaug Crop Research Centre of G. B. Pant University of Agriculture and Technology, Pantnagar. Laboratory experiment consisted of five treatments viz; no priming, hydropriming, 10%, 25% and 50% KJ priming for 16 hours and laid out in completely randomized design with six replications. The field experiment consisted of three seed invigoration treatments viz; 10%, 25% and 50% KJ priming+ 10% kunapajala foliar application and four nutrient doses viz; 100%, 75% and 50% RDN and no nutrient along with two control treatments viz; no priming+100% RDN and hydropriming+100% RDN. The experiment was laid out in factorial randomized block design in three replications where foliar application of KJ was at done at 25, 45, 65, 85 and 105 DAS in all treatments except control and hydropriming treatments. In the laboratory, significantly higher germination per cent was observed with 25% KJ and hydro primed seeds jointly which was at par with 10% KJ primed seeds. 10% and 25% KJ primed seeds showed significantly higher seedling dry weight and seedling vigour index-II which was at par with each other. Whereas seedling growth measured in terms of root length, seedling length and seedling vigour index-I was significantly higher with 10% KJ primed seeds than rest of the treatments. Seed reserve mobilization efficiency and alpha amylase activity was found significantly higher with 10% and 25% KJ primed seed as compared to other treatments and at par with hydropriming. In field experiment, 10% and 25% KJ primed seeds + 10% KJ foliar application at 25, 45, 65, 85 and 105 DAS showed significantly higher emergence per cent, plant stand, number of tillers at 30, 50 and 70 DAS and dry matter accumulation at 50, 70 and 90 DAS which was at par with each other. Yield attributing characters viz; grain weight per spike, thousand grain weight and biological yield, grain yield, gross returns, net returns and benefit cost ratio was also significantly higher with 10% and 25% KJ priming followed by foliar application of 10% KJ. Application of 100% RDN resulted higher plant stand, plant height at 70 and 90 DAS and number of tillers at 50 DAS which was significantly superior to rest of the nutrient doses. 100% RDN recorded longest spike, maximum number of grains per spike, grain weight per spike, grain yield and biological yield which was significantly superior to rest of the treatments. Gross returns, net returns and B:C ratio was also significantly higher with 100% RDN.EnglishThesis