Singh, V.K.Bhandari, Pradeep2018-10-232018-10-232013-07http://krishikosh.egranth.ac.in/handle/1/5810081951A field experiment was conducted during rabi season of 2012 at Crop Research Center of G.B. Pant University of Agriculture and Technology, Pantnagar to study the effect of different foliar spray treatments on growth and development, yield and quality of bold seeded lentil. The soil of the experimental field was sandy clay loam in texture, having high organic carbon (0.87), medium available nitrogen (320.81 kg N/ha), available phosphorous (12.2 kg P/ha) and available potassium (218 kg K/ha) contents with neutral in reactions (pH 7.4). Twelve foliar spray treatments viz.; control, water at pod initiation, water at pre-flowering + pod initiation, 2% urea at pre-flowering, 2% urea at pod initiation, 2% urea at pre-flowering + pod initiation, 500 ppm thiourea at pre-flowering, 500 ppm thiourea at pod initiation, 500 ppm thiourea at pre-flowering + pod initiation, 1000 ppm thiourea at pre-flowering, 1000 ppm thiourea at pod initiation and 1000 ppm thiourea at pre-flowering + pod initiation stages were tested in randomized block design (RBD) with three replications. Results revealed that growth attributes viz.; number of branches and dry matter accumulation were higher under 2% urea when sprayed at pre-flowering + pod initiation stages than control whereas the number of leaves was maximum with 500 ppm thiourea at pre-flowering stage. Foliar application of 2% urea at pre-flowering + pod initiation stages increased the number of pods per plant, grain weight per plant, biological yield, grain : straw ratio and harvest index significantly over control whereas straw yield was significantly higher under 500 ppm thiourea when sprayed at preflowering + pod initiation stages. Foliar spray of 2% urea at pre-flowering + pod initiation stages which was at par with the sprays of 2% urea at pod initiation, 500 ppm thiourea at pre-flowering and 500 ppm thiourea at pre-flowering + pod initiation stages registered significantly higher grain yield (kg/ha) over control and other treatments. N, P and K content in grain and straw and protein content in grains were not influenced significantly by different foliar spray treatments. A significant increase in N, P and K uptake by crop and protein yield was noticed under foliar application of 2% urea at pre flowering + pod initiation stages than those of control and remaining treatments.ennullThesis