Effect of GA3 and fungicides on vegetative and corm attributes of single budded cut corms in gladiolus

Abstract

An investigation was performed on effect of GA3 and fungicides (carbendazim and mancozeb) on vegetative and corm attributes of cut corms in gladiolus cv. Punjab Morning at Horticultural Research Farm, Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, U.P. during winter season during the year 2017-18. The experiment was laid out in Randomized Block Design (RBD) with three replications. The experiment consisted of twelve treatments viz., GA3 50 and 100 ppm, carbendazim 0.4%, mancozeb 0.4%, carbendazim 0.4% + mancozeb 0.4%, GA3 50 ppm + carbendazim 0.4%, GA3 50 ppm + mancozeb 0.4%, GA3 50 ppm + carbendazim 0.4% + mancozeb 0.4%, GA3 100 ppm + carbendazim 0.4%, GA3 100 ppm + mancozeb 0.4%, GA3 100 ppm + carbendazim 0.4% + mancozeb 0.4% including control. All the single budded cut corms of gladiolus were pre-soaked in various concentrations of GA3, carbendazim 0.4% and mancozeb 0.4% solution. Maximum plant height at 50 and 65 days after planting was noted with treatment GA3 100 ppm + carbendazim 0.4% + mancozeb 0.4% (48.73 cm and 53.06 cm, respectively) while leaf width of 1st leaf at 20, 35 and 50 days after planting was observed with treatment carbendazim 0.4% (1.34 cm), carbendazim 0.4% (1.85 cm) and GA3 50 ppm 0.4% (2.03 cm), respectively. Leaf width of 3rd leaf at 65 days after planting resulted maximum with treatment carbendazim 0.4% (1.99 days) when compared to control (1.85 days). Maximum number of cormels per hill was registered with treatment GA3 50 ppm + carbendazim 0.4% + mancozeb 0.4% (7.25).