Document Type : Original Article

Authors

• Mahmoud Abbas Khudeir ¹
• Omar Nazhan Ali ²

¹ Field Crops Department, College of Agriculture, Tikrit University, Iraq, Tikrit

² *Field Crops Department, College of Agriculture, Tikrit University, Iraq, Tikrit

Abstract

This research was conducted at the field crops research station in the autumn season of 2024, College of Agriculture- Tikrit University, Iraq- in the season of 2024 , with the aim of evaluating the Effect of Foliar Application of Salicylic Acid on Growth and Yield Traits of Corn genotypes (Zea mays L.). The experiment included two factors: the first was the spraying of three of concentration of salicylic, and the second involved four corn genotypes. A factorial experiment was applied using a Randomized Complete Block Design (RCBD) .The statistical analysis revealed that the 200 mg·L⁻¹ salicylic acid concentration significantly improved traits such as number of days from planting until 75% male flowering and number of days from planting until 75% female flowering and ear height and individual plant grain yield, and grain yield. Among the genotypes, genotype 777 outperformed others in traits such as ear height, chlorophyll content, number of grains per row, individual plant grain yield, grain yield, and harvest index. Furthermore, the interaction between salicylic acid concentrations and genotypes resulted in significant differences in vegetative growth and yield. The combination of (200 mg·L⁻¹ × genotype 777) and (200 mg·L⁻¹ × genotype Toro) recorded the highest values in Vegetativ growth and yield. Climatic fluctuations have pushed farmers to face agricultural challenges, which encouraged researchers to study the effect of salicylic acid in improving growth and production.
 
 

Highlights

Keywords

• Foliar application
• Flowering time
• Chlorophyll
• genotype 777