Effect of methanol spraying on yield and yield components of soybean (Glycine max L.)

Document Type : Scientific - Research


1 Department of Agronomy and Plant Breeding, Faculty of Agriculture, Karaj Branch, Islamic Azad University, Karaj, Iran

2 Karaj Institute of Biotechnology, Iran

3 Faculty of Agriculture and Natural Resources , Islamic Islamic Azad University, Varamin Branch, Varamin , Iran


In order to evaluate the application of methanol on yield and yield components of soybean (Glycine max L., var. L 17) in field conditions, experiments were conducted based on a randomized complete block design with three replications at the Field Research from Faculty of Agricultural of Islamic Azad University Karaj, Iran, during 2008. Sprayed aqueous solutions were zero (control), 7, 14, 21, 28 and 35% (v/v) methanol by there times during growth season of soybean with 15 days intervals on shoot of soybean. In this study soybean grain yield, biomass HI, 1000 grain weigh, height plants, number of branch, diameter of stem, number of pod on plant, number of hollow pod were measured. Results of the experiment indicated that there are significant differences (p>0.05) between sprayed of solution methanol on all parameters. Results also showed the effect of aqueous solution 14, 21 and 28% (v/v) methanol on measured parameters was greater than other treatments. Foliar application of 14% and 21%, (v/v) methanol increased leaf area index, crop growth rate, pod growth rate, leaf area duration, pod yield, seed yield, weight of 1000 kernel, mature pods per plants. The lowest grain yield obtained in control plots and 35% (v/v) methanol treatments.


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