Singh, Amit KumarYadav, Pradeep2022-01-242022-01-242021-11-10PRADEEP YADAV 2021. YIELD MAXIMIZATION OF CHICKPEA VARIETIES THROUGH WATER ABSORBENTS UNDER RAINFED LATE-SOWN CONDITION. M.Sc. Thesis. 91p.https://krishikosh.egranth.ac.in/handle/1/5810181188This research work entitled, “Yield maximization of chickpea varieties through water absorbents under rainfed late-sown condition” was studied at the College Research Farm of Banda University of Agriculture and Technology, Banda during the winter season of 2020-21. This experiment was conducted in split plot design with two factor-treatments and three replications with a holistic aim to search out the best variety and water absorbent that enhance the crop yield and mitigate the moisture deficit stress. The treatments consisted of main plot: three water absorbents viz., Hydrogel @ 5.0 kg ha-1 , two foliar application of Salicylic Acid @ 150ppm, Hydrogel @ 5.0 kg ha-1 followed by two foliar application of Salicylic Acid @ 150ppm and sub-plot: five varieties viz., JG-14, JG16, JG-18, JG-36 and RVG-202. The experimental soil was clayey loam in texture and was having pH 7.8 and EC 0.41 dSm-1 . It was poorly fertile being low in organic carbon content (0.41) and nitrogen (190 kg ha-1 ) and medium in available phosphorus (12.1 kg ha1 ) and potassium (220.4 kg ha-1 ). The experimental field was prepared with the help of tractor-drawn implements and stubbles of previous crops and weeds were cut into pieces by cross harrowing to obtain a coarse seedbed. The application of all fertilizers (DAP and MOP) and sowing of treated seeds was undertaken using a seed cum ferti-drill keeping 30 cm apart distance between the rows and later plant to plant distance was maintained at an interval of 10 cm. Observations on growth parameters at various stages of crop growth, quantitative and qualitative attributes of Chickpea were recorded. In general, the weather condition was less congenial during the year of experimentation that resulting in slightly poor crop yields. The conducted field study during Rabi 2020-21 reveals that Chickpea variety “JG-18” when sown on November 9th at a spacing of 30*10 cm apart and fertilized at 25:60:30 kg of N:P:K per hectare under rainfed late sown condition was performed significantly superior over other varieties irrespective of water-absorbents applied. The mixed application of water-absorbents as basal (hydrogel @5 kg/ha) and foliar (salicylic acid @ 150ppm/ha twice at flower initiation and pod formation) proved remarkable in terms of growth that maximized yield productivity, and profitability. Among the treatment combination studies, the RVG-202 with the basal application of hydrogel @ 5 kg ha-1 and two foliar sprays of Salicylic acid @ 150 ppm at flowering initiation and pod formation significantly produced more number of root nodules at 45 and 60 DAS, took more number of days to mature and out-yielded the crop productivity and maximize the crop profitability.EnglishThesis