Effect of benzyl adenine and gibberellic acid on corm and cormels production of gladiolus

Abstract

A field experiment was conducted at the Department of Floriculture and Landscape Architecture, College of Horticulture, Mudigere, during 2017-18 to investigate the impact of benzyl adenine (BA) and gibberellic acid (GA3) on corm and cormels production in gladiolus. The experiment was arranged in a Randomized Complete Block Design with 16 treatments and 3 replications. The treatments consisted of varying concentrations of BA (100, 200, and 300 ppm), GA3 (150, 200, and 250 ppm), and their combinations, along with a control group. The results revealed that BA at 300 ppm exhibited the highest corm yield per plant (3.41), per plot (102.00), and per hectare (13,416.67 Kg/ha), as well as the highest cormels yield per plant (47.14), per plot (644.67), and per hectare (1250.00 Kg/ha). Additionally, BA at 300 ppm resulted in the highest corm weight per plot (2.68 Kg), cormels weight per plant (28.08 g), and cormels weight per plot (251.33 g). In contrast, the control group recorded the lowest values for corm yield per plant (1.16), per plot (34.70), and per hectare (7083.33 Kg/ha), as well as cormels yield per plant (17.92), per plot (261.00), and per hectare (466.67 Kg/ha). Moreover, the control group exhibited the lowest corm weight per plot (1.42 Kg), cormels weight per plant (11.59 g), and cormels weight per plot (92.33 g). GA3 at 250 ppm demonstrated the highest corms weight per plant (171.18 g), corm diameter (7.99 cm), and cormels diameter (7.19 mm). Conversely, the control group exhibited the minimum values across all parameters studied.