Dr. I. B. MauryaGEETA YADAV2024-06-202024-06-202022https://krishikosh.egranth.ac.in/handle/1/5810210680The study was carried out at Protected Cultivation Unit, Department of Vegetable Science, College of Horticulture and Forestry, Jhalawar during Rabi season from December 2021 to April 2022 to investigate the “Effect of nano-particles of Zn and Fe on growth, yield and quality parameters of parthenocarpic cucumber (Cucumis sativus L.) under polyhouse condition” The experiment consisted of 2 different nano-particles with different doses i.e. Zn and Fe including control. The experiment was laid out in a randomized block design (RBD) with three replications. Data were collected on different growth, yield and quality contributing characters of cucumber. Results revealed that the treatment T28 (seed treatment with Zn NPs @ 400 ppm + Foliar spraying with Fe NPs @ 400 ppm) gave the maximum, vine length at 30, 60, 90 and 120 DAT (0.39 m, 2.38 m, 3.69 m and 4.83 m), stem diameter at 45 and 90 DAT (0.88 cm and 0.92 cm), minimum days taken to first flowering (36.96 days), inter-nodal length at 45 and 90 DAT (7.46 cm and 13.01 cm), number of leaves per plant at 45 and 90 DAT (61.82 and 136.99), leaf length at 45 and 90 DAT (14.98 cm and 16.95 cm), leaf width at 45 and 90 DAT (16.74 cm and 19.06 cm), Leaf Area Index (3.52), number of branches per plant at 45 and 90 DAT (10.33 and 19.30). minimum number of days taken to first harvesting (48.22 days), number of fruit per plant (39.18), fruit length (18.66 cm), fruit diameter (4.09 cm), average fruit weight (187.04 g), marketable yield per plant (5.07 kg), minimum unmarketable yield per plant (0.152 kg), fruiting span (43.69 days), and also the total soluble solids (3.93 ºBrix), chlorophyll content of leaf (3.14 mg/100g), ascorbic acid (2.83 mg/100g). Overall acceptability 7.59 (9 point hedonic scale) were found, as compared to control. This study suggest from the results that (seed treatment with Zn NPs @ 400 ppm + Foliar spraying with Fe NPs @ 400 ppm was found most effective in growth, yield and quality attributes. The treatment T28 (seed treatment with Zn NPs @ 400 ppm + foliar spraying with Fe NPs @ 400 ppm) was found most effective in increasing the net return (Rs. 246450/ 500 m2) with higher B:C ratio (5.11).EnglishThesis