Uniyal, ShwetaKanupriya2021-02-172021-02-172020-11https://krishikosh.egranth.ac.in/handle/1/5810161293The present investigation was carried out at Horticulture Research Centre, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Udham Singh Nagar (Uttarakhand) during January, 2019 to January, 2020.The experiment was laid out in Factorial Randomized Block Design with two factors comprising of two rootstocks (Sharbati and Kabul Green Gage) and six IBA concentrations (Control, 1000 ppm, 1500 ppm, 2000 ppm, 2500 ppm, 3000 ppm). Thus, 12 treatment combinations were tested in three replications. The observations in respect to days to sprouting, duration of sprouting, vegetative growth, rooting and other plant attributes were recorded. Findings of the present investigation revealed that peach cv. Shan-e-Punjab grafted on plum rootstock takes the minimum days to sprouting (26.72 days), minimum sprouting duration (31.78 days), while peach grafted stents showed maximum initial sprouting (80.28%). Plum grafted stents were estimated to be highest in terms of plant height (97.78 cm), stem thickness (11.77 mm), number of leaves (60.55), number of shoots (9.56), fresh weight of shoot (86.85 g), dry weight of shoot (46.12 g), root thickness (9.97 mm), number of primary roots (15.83), number of secondary roots (38.91), length of primary root (39.39 cm), fresh weight of root (63.57 g), dry weight of root (39.42 g), success percentage (43.88%) and minimum mortality percentage (56.11%). Stents treated with 3000 ppm of IBA was found to induce early sprouting (24.17 days), minimum duration of sprouting (30.17 days), maximum sprouting (85.83%), stem thickness (14.57 mm), number of leaves (70.63), maximum number of shoots (12.99), fresh weight of shoot (89.67 g), dry weight of shoot (48.07 g), root thickness (10.82 mm), number of secondary roots (37.60), fresh weight of root (64.41 g), dry weight of root (44.59 g), success percentage (52.50%) and minimum mortality (47.50%). However, stents treated with 2500 and 1500 ppm IBA concentrations recorded maximum plant height (102.75 cm), length of primary root (45.83 cm) and number of primary roots (14.83) respectively. The interaction effect of stents grafted on plum rootstock with 3000 ppm IBA showed minimum days to sprout (23.67 days), sprouting duration (27.67 days), maximum sprouting (88.33%), stem thickness (14.80 mm), number of leaves (75.73) number of shoots (13.67), fresh weight of shoot (94.33 g), dry weight of shoot (51.56 g), number of secondary roots (46.88), length of primary root (50.00 cm), fresh weight of root (68.33 g), dry weight of root (47.60 g), success (65.00%) and minimum mortality (35.00%). While, plum grafted stents treated with 2500 ppm reported maximum plant height (105.50 cm) and root thickness (12.77 mm). However, maximum number of primary roots (14.83 g) were observed in plum grafted stents treated with 1500 ppm. Thus, it can be concluded that stents performed better under plum rootstock with IBA treatment @ 3000 ppm with respect to all vegetative growth and success parameters. Therefore, for the production of superior quality of peach plants cv. Shan-e-Punjab through stenting, the cuttings of Kabul Green Gage plum as a rootstock with the treatment of IBA @ 3000 ppm can be recommended.EnglishThesis