Effect of tobacco (Nicotianatobaccum L.) residue on seedling emergence and physiological characteristics of same cereals in rotation
Journal Title: Scholars Journal of Agriculture and Veterinary Sciences - Year 2014, Vol 1, Issue 3
Abstract
Abstract: Among different crops, tobacco (Nicotionatobaccum L.) is considered as an index crop because it contains allelochimicals or alkaloid components such as nicotine, anabazine, nor nicotine and nicotrin. These products may be release in soil under crop rotation and affect crop growth and development. The aim of this experiment was evaluation of inhibitory rate of two different types of tobacco residues on seedling emergence and physiological characteristics of same cereals (corn, wheat and barley) that likely planted after tobacco. A factorial experiment based on completely randomized design with three replications was conducted at greenhouse in Sari Agricultural Sciences and Natural Resources University during 2012. Root and shoot residues of Virginia and Basma and corn (cv. SC704), wheat (Shanghai) and barley (Sahra) were the experimental factors. Tobacco residues in soil significantly decreased emergence time, emergence rate, chlorophyll content and seedling vigor index of corn, wheat and barley. Among cereals, corn and barley had the greatest and lowest damage, respectively. Seedling emergence of corn and wheat significantly decreased by Virginia root and shoot residue compared to control. Based on the results, barley had optimum growth in comparison with corn and wheat in tobacco rotation system. Keywords: Alkaloid, Cereals, Rotation, Tobacco, Seedling emergence.
Authors and Affiliations
Yazdani Mohammad
Keywords
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