Effects of starter nitrogen and methanol on nodulation, grain filling components and ‎quantitative and qualitative yield of peanut (Arachis hypogaea L.‎‏ (‏

Articles in Press

Document Type : Research Paper

Authors

1 گروه تولید و ژنتیک گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی. اردبیل، ایران

2 Department of Agronomy and plant breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili.

3 Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran

10.22034/saps.2025.64972.3320

Abstract

Objective: , the aims of this study was to investigate the effects of starter nitrogen and ‎foliar‏ ‏application with ‎methanol on nodulation, grain filling components and quantitative and qualitative yield ‎of peanut ‎
Materials and methods: experiment was carried out as factorial based on RCBD with three replications in 2022. ‎Factors experimental were included application of methanol at three levels (foliar application with ‎water as control, application 20 and 40 volume percent) and starter nitrogen rates at three levels (no ‎application as control, application of 25 and 50 kg/ha) by urea
Findings: The results showed that application of the higher rates of starter nitrogen increased the ‎number and dry weight of nodules per plant (69.5 and 55%, respectively), protein content, linoleic acid ‎and oleic acid (13.2, 16.8 and 14.7%) in comparison with control. Also, foliar application of 40 volume ‎percent of methanol increased the number of and dry weight of nodules per plant (28.5 and 27.7%, ‎respectively) in comparison with control. Maximum of oil content (45.5%) was obtained in application ‎of 25 kg/ha starter nitrogen. Application of the higher rates of starter nitrogen and methanol increased rate ‎and grain filling period (87 and 40, respectively) and grain yield (52%) in comparison with no ‎application of starter nitrogen and methanol.‎
Conclusion: Based on these results, it seems that application of 50 kg/ha starter nitrogen and foliar ‎application of 40 volume percent of methanol can be suggested for improve of grain yield. ‎

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Journal of Agricultural Science and Sustainable Production

Articles in Press, Accepted Manuscript
Available Online from 22 October 2026

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