Ali Abboud(1)* , Mohammad Nael Khattab(1) and Majd Darwish(1)
(1). Department of Crops, Faculty of Agriculture, Tishreen University, Lattakia, Syria.
(*Corresponding author: Ali Aboud . E-Mail: aliabboud608@gmail.com.)
Received: 24/10/2024 Accepted: 19/03/2025
Abstract:
The research was carried out in the Jableh area of Lattakia Governorate, in mid-April 2024 AD, with the aim of applying foliar spraying with potassium humate at concentrations of (1-2) g/l and seaweed extract at a rate of 1.5 -3 ml/l and irrigation at a level of 50 and 100% of the field capacity on two hybrids of sweet corn (Cooper and Golden Swede) according to a randomized complete block design (RCBD) with three replicates for each treatment. The following indicators were measured (plant height (cm), number of leaves, leaf surface area (cm2/plant), ear length (cm), number of rows per ear, number of grains per ear, weight of 100 grains (g), weight of grains per ear (g). The results showed that spraying with seaweed extract at a concentration of 3 ml/L and potassium humate at a concentration of 2 g/L on the hybrids of sugar corn Cooper and Golden Sweden when irrigated at a rate of 50 and 100% of the field capacity led to a significant improvement in the values of many of the studied traits such as (plant height, number of leaves, area of leaves per plant, ear length). Spraying with seaweed extract at a concentration of 1.5 ml/L and potassium humate at a concentration of 1 g/L on the hybrids of sugar corn Cooper and Golden Sweden when irrigated at a rate of 50 and 100% of the field capacity led to a significant increase in many of the studied traits such as (number of rows per ear, number of grains per ear, weight of 100 grains, weight of grains per ear). It was also observed during the application of spraying with seaweed extract at a concentration of 3 ml/L and potassium humate at a concentration of 2 g/L and irrigation at 100% of the field capacity, the hybrid Cooper was superior to the hybrid Golden Sweden in some of the studied traits, The Golden hybrid was superior in other characteristics, and thus both responded to the study treatments and could be grown in the region.
Keywords: Sugar corn, potassium humate, seaweed, water deficit.
Full Paper in Arabic: pdf