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Evaluation of different compounds of naphthalene acetic/indole acetic acid and humic acid on corn yield
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Sajad Hajati   , Tayeb Saki Nezhad * , Koroush Ordokhani , Shahram Sharaf Zadeh , Mahdi Zare |
| Islamic Azad University |
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Abstract: (373 Views) |
Different compounds of naphthalene acetic / indole acetic acid and humic acid have an important role in plant growth and development; therefore, an experiment was conducted in Shahid Salemi farm in Ahvaz in 2017-18 and 2018-19. The experiment was performed in a randomized complete block statistical design with split plot-factorial in three replications. Experimental treatments include two hybrids of corn SC 704 and AS71 in the main plot and factorial treatments of hormone mixing ratio in three levels of control (without mixing), mixing naphthalene acetic / indole acetic acid in the ratio of 100/200 and 200/400 mg/kg and humic acid at three levels of control (without use), 500 and 1000 g/ha were compared in subplots. The results show that the application of 500 and 1000 g/ha of humic acid had a significant effect on all studied traits. The lowest amount was obtained in the control treatment or no consumption of humic acid. There was no significant difference between the consumption of 500 and 1000 g/ha of humic acid in all studied traits except grain yield, harvest index, and catalase enzyme. The highest grain yield in SC704 hybrids was observed in mixing ratios of 7391 and 7291 kg/ha, respectively. Also, the grain yield in AS71 hybrid in the mixing ratio of 200/400 mg of naphthalene acetic/indole acetic acid was not significantly different. The lowest grain yield was observed in AS 71 hybrid in control treatment at 5945 kg/ha. According to the results of this study, the use of hormones and humic acid can positively affect increasing the yield and morphological traits of corn. Seed yield was increased by improving plant growth, which can be attributed to the effect and role of hormones and the use of humic acid.
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| Keywords: Catalase enzyme, Hormone, Peroxidase enzyme and Protein |
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Full-Text [PDF 516 kb]
(514 Downloads)
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Type of Study: Research |
Subject:
Crop Physiology
Received: 2021/01/27 | Accepted: 2024/02/29 | Published: 2024/02/29
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