Effect of Planting Geometry on Growth, Yield and Yield Attributes of Sweet Corn

A field experiment was conducted during the Rabi season of the year 2023-24 at the Instructional farm, Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat, India to study the effect of planting geometry on growth, yield and yield attributes of sweet corn. The experiment was laid out in randomized block design (RBD) with five replications and six treatments with different planting geometries viz., T1 (30 cm × 10 cm), T2 (30 cm × 20 cm), T3 (45 cm × 10 cm), T4 (45 cm × 20 cm), T5 (60 cm × 10 cm), T6 (60 cm × 20 cm). The results of field experiment revealed that the treatment T6 (60 cm × 20 cm) recorded significantly higher values of growth parameters viz., plant height at 30, 60, 90 DAS and at harvest (cm), dry biomass at emergence, tasseling, silking and maturity (g/plant), plant water content at emergence, tasseling, silking and maturity (%), chlorophyll content at 30, 60 DAS and at harvest (mg/g). While, significantly higher leaf area index was recorded with the treatment T1 (30 cm × 10 cm). The treatment T4 (45 cm × 20 cm) recorded significantly higher values of yield attributes and yield viz., number of cobs per plant, cob length (cm), cob girth (cm), number of seeds row per cob, number of seeds per row and fresh cob yield (kg/ha). While, significantly higher green fodder yield (kg/ha) and dry fodder yield (kg/ha) was recorded with the treatment T1 (30 cm × 10 cm).