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Plant Warfare: Allelopathic Effects of Nicotiana tabacum on the Germination of Vigna radiata and Triticum aestivum

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Allelopathic chemicals in many plants can be released into the surrounding soil and may affect the development of nearby crops. Understanding allelopathic effects can be extremely beneficial for both economic and environmental reasons. The information gained from understanding allelopathy may be used in the optimization of crop rotations. Previous studies have investigated the negative allelopathic effects of Nicotiana tabacum — tobacco, on corn and other crops. Our study investigated the allelopathic impact of tobacco on seed germination of mung bean, Vigna radiata, and organic red fife wheat, Triticum aestivum. Seeds were treated with various concentrations of tobacco leaf solution to study the effects of tobacco on germination of the seeds.

The effects of tobacco on the germination rate and percentage of germination were analyzed using one-way ANOVA with Tukey HSD tests. Results showed that there was a significant decrease in germination rate at high concentrations of tobacco. Our findings suggest that allelopathic chemicals released by tobacco have detrimental effects on the germination of mung bean and red fife wheat. Therefore, when forming crop rotations, it is important to take into account and understand the allelopathic effects and interactions between different species planted in the same region.

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