Effects of planting pattern and seed ratio on growth indices of intercropped sesame (Sesamum indicum L.) and bean (Phaseolus vulgaris L.)
Message:
Abstract:
In order to study the effects of mixed and row intercropped sesame and bean on the species growth indices، a split-plot experiment based on randomized complete blocks design with three replicates was performed at the Research Farm of Ferdowsi University of Mashhad during the growing season of 2011-2012. A cropping pattern (mixed and row intercropping) was allocated to the main plots and different planting ratios (25% bean +75% sesame، 25% sesame +75% bean، 50% sesame +50%bean، pure sesame، pure bean) were assigned to the sub-plots. Results indicated that sole sesame treatment showed superiority (Total Dry Matter (TDM)، Leaf Area Index (LAI) and Relative Growth Rate (RGR)) in most cases compared to the other treatments. This is the result of the lack of competition between sesame and bean in this treatment and taking great advantage of nutritional sources and light. The highest rate of growth indices were achieved in mixed intercropping. The highest total dry matter amount of sesame was obtained in sole sesame treatment. The highest crop growth rate amount of sesame in row intercropping pattern was 21 g m-2 day-1 while the highest crop growth rate amount of sesame in the mixed intercropping pattern was 24 g m-2 day-1. The effects of row and mixed intercropping on the relative growth rate were not same: The highest level of growth indices was observed in the sole treatment of sesame while intercropping had no positive effect on growth indices of sesame.
Language:
Persian
Published:
Journal of Agroecology, Volume:3 Issue: 1, 2013
Pages:
111 to 123
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