Effect of IBA Concentration (Indol Butaric Acid) and Growing Condition on Performance of Cuttings in Mogra (Jasminum sambac)

Abstract

An experiment was laid out to study influence of different levels of IBA and growing condition on cuttings of Mogra (Jasminum sambac) at Sheth D. M. polytechnic in Horticulture College, Anand Agricultural University, Model farm, Vadodara during 2022 to 2024. The study was conducted using completely randomized design with factorial concept and three replications for each treatment. Total 10 treatment combination of two factors viz., growing condition (open and NVPH) and IBA concentration (500, 1000, 1500 and 2000 ppm) were compared with control (deepen in distilled water). IBA significantly improved the performance of cuttings under naturally ventilated poly-house condition. 1500 ppm IBA concentration recorded significantly lower days to sprout (13.83 days), higher shoot length at 30, 45 and 60 DAP (2.80 cm, 7.64 cm and 11.63 cm), root length (4.18 cm), number of leaves at 30, 45 and 60 DAP (2.87, 6.03 and 8.47), fresh weight (11.63g), dry weight (4.18g) and survival percentage (66.11%). Where as in growing condition, naturally ventilated poly-house recorded significantly lower days to sprout (13.27 days), higher shoot length at 30, 45 and 60 DAP (2.40cm, 7.26 cm and 11.80 cm), root length (3.89 cm), number of leaves at 30, 45 and 60 DAP (2.72 , 4.80 and 7.85), fresh weight (11.80 g), dry weight (3.89 g) and survival percentage (64.56%). Semi hardwood cuttings of Jasminum sambac treated with 1500 ppm IBA concentration treatment for 5 min and planted in polybags under Naturally ventilated poly-house showed promising growth with higher sprouting and survival percentage as compared to other treatments. It was recommended to propagate semi hardwood cuttings of Jasminum sambac with 1500 ppm IBA concentration for 5 min and plant them in naturally ventilated polyhouse to get maximum sprouting percentage and quality planting material.