Alleviating the adverse effect of salinity on Maize by the ameliorative effect of salicylic acid
Year: 2016
Type: article
Abstract: Two experiments in cemented plots were carried out during 2012 and 2013 summer seasons at Soil Salinity and Alkalinity Laboratory, Alexandria, Egypt, to study the effect of three levels of irrigation water salinity (0.5, 2.75, 5.5 dS/m) and foliar application of salicylic acid (0, 100, 200 ppm) on growth, grain yield, and yield components of Maize. Split plot with four replicates was the experimental design. The results revealed that at mid-season, irrigation with saline water significantly decreased plant height (cm), plant fresh weight (g), and plant dry weight (g). However, number of leaves/plant, leaves area/plant (m2), and leaf area index were not significantly affected. Also, at mid-season foliar spraying with salicylic acid significantly increased plant fresh weight (g), and plant dry weight (g). However, plant height (cm), number of leaves/plant, leaves area/plant (m2), and leaf area index were not significantly affected. At end-season irrigation with saline water significantly decreased ear height (cm), ear weight (g), number of grains/row, 100 kernel weight (g), grain yield (g/plot), biological yield (g/plot), straw yield (g/plot), and harvest index while number of rows/ear was not significantly affected. Also, at end-season foliar application of salicylic acid significantly increased all the studied parameters except for ear height (cm), number of rows/ear, and harvest index. The interaction between salinity and salicylic acid was not significant for all the studied parameters except for grain yield meaning that every factor is acting independently from each other. In conclusion, salicylic acid could be used as an antioxidants or potential growth regulator to improve corn growth and grain yield under salinity conditions.
Source: Egyptian Journal of Agronomy
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W2590556126