Effect of cultivars, potassium sulphate and tocopherol on the growth of shoots of maize (Zea mays L.)
DOI:
https://doi.org/10.59658/jkas.v12i4.5117Keywords:
maize, cultivar, potassium sulphate, tocopherolAbstract
This study was conducted in the Al-Nabhaniyah area 10 km east of Karbala city during the spring agricultural season 2024 to investigate the effect of foliar spraying with potassium sulfate and tocopherol on vegetative growth indicators. The experiment was implemented using a completely randomized design (CRD) as a factorial experiment with three factors: two cultivars of maize (Sorour and 5018), four concentrations of potassium sulfate (0, 25, 50, and 75 mg L-1), and four concentrations of tocopherol (0, 50, 100, and 150 mL-1), with three replicates. The results showed that foliar fertilization with potassium sulfate at a concentration of 50 mg L-1 and tocopherol at a concentration of 100 mg L-1 significantly affected all studied traits. The two-way interaction between the study factors was significant except for relative and absolute growth. The interaction coefficients between the cultivars and potassium sulfate concentrations 50 mg L-1 and between the cultivars and tocopherol concentrations (100 mg L-1) gave the highest rate. The two-way interaction between potassium sulfate and tocopherol was also significant under concentrations (50, 100 mg L-1) of potassium sulfate and tocopherol, respectively. The results also showed that the three-way interaction between the study factors was significant for all studied traits except for the average number of leaves (leaf/plant-1) and the relative growth rate. Also, there was a significant interaction between cultivars, Potassium sulfate 50 mg L-1 and tocopherol 100 mg L-1 for other traits.
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