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:: Volume 17, Issue 2 (تابستان 2015) ::
علوم زراعی 2015, 17(2): 139-152 Back to browse issues page
Effect of sowing time on seed yield, advantage and competitive indices in ajwain (Carum copticum L.) and isabgol (Plantago ovate Forsk.) intercropping
Abstract:   (3347 Views)
To study the effect of sowing time and on the isabgol- ajwain intercropping a field experiment was performed in split plot arrangement using randomized complete block design with three replications at Zabol University, Zabol, Iran in 2013. Experimental treatments consisted of: two sowing time January 10 and February 9 which were assigned to main plots, and six isabgol and ajwain additive ratios (sole isabgol, sole ajwain, 25% isabgol+100% ajwain, 50% isabgol+100% ajwain, 75% isabgol+100% ajwain and 100% isabgol+100% ajwain) were randomized in sub-plots. Results showed that the highest seed yield and secondary metabolic of both species obtained from sowing time of January 10. The highest seed yield of two species (2363 kg.ha-1), land equivalent ratio (LER = 1.53), System Productivity Index (SPI=10237) was obtained at mixed cropping of 50% isabgol+100% ajwain. Ajwain in intercropping of 25% isabgol+100% ajwain had the highest crowding coefficient (Kajwain=2.38) and dominance (Kajwain=0.54). By increasing the density of intercropping isabgol was dominant species. Competition Index (CI) for all intercropping treatments was lesser than unity, indicating yield advantage in intercropping over monocropping systems. These findings suggest that intercropping of ajwain- isabgol at 25 isabgol+100% ajwain and 50% isabgol+100% ajwain can be considered for yield advantage in hot and dry areas of experiment site conditions.
Keywords: Actual yield loss, Aggressivity, Competition index, Land equivalent ratio and Isabgol
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Type of Study: Scientific & Research | Subject: Special
Received: 2015/10/11 | Accepted: 2015/10/11 | Published: 2015/10/11
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Effect of sowing time on seed yield, advantage and competitive indices in ajwain (Carum copticum L.) and isabgol (Plantago ovate Forsk.) intercropping . علوم زراعی. 2015; 17 (2) :139-152
URL: http://agrobreedjournal.ir/article-1-523-en.html


Volume 17, Issue 2 (تابستان 2015) Back to browse issues page
مجله علوم زراعی ایران Iranian Journal of Crop Sciences
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