Effect of Planting Dates and Spraying with Salicylic Acid on Some Growth Traits and Yield of Sorghum (Sorghum bicolor L.)
Jaafar Rldha Saddam, Razaq Lifta Attiya
A field experiment was conducted in one of the fields of Ibn Al-Bitar vocational school in Al-Husseiniyah district in the Holy governorate of Kerbala for the spring season of 2023, with the aim of knowing the effect of planting dates and spraying with salicylic acid on some growth indicators and yield in Sorghum. The experiment was carried out according to a randomized complete block design (RCBD), in a split-plot arrangement, with three replications. The main plots included salicylic acid spray concentrations (0, 50, 100 and 150 ml L-1). While the sub plots included planting dates (March 1, March 10, and March 20). The results showed that the third date (March 20) was superior in plant height (235.50 cm), stem diameter (30.44 mm), leaf area (4208 cm2), flowering percentage 75% (77.37 day), number of grains (4938 grain head-1), weight of 1000 grain (35.01 g) and grain yield (8.88 tons ha-1). As for salicylic concentrations, the concentration exceeded 150 mg L-1 in plant height (249.48 cm), stem diameter (29.44 mm), leaf area (4359 cm2), flowering percentage 75% (82.37 day), number of grains (4907 grain head-1), weight of 1000 grain (33.89 g) and grain yield (8.26 ton ha-1).
Keywords: Sorghum bicolor L., Planting dates, Salicylic acid
