Effect of Plant Density on Grain Yield and Grain Yield Components of Three Rapeseed Hybrids under Dezful climate
In order to investigate the effect of plant density on yield and grain components of three canola cultivars in north of Khuzestan, an experiment was conducted in Agricultural Research Station of Agricultural Faculty of Islamic Azad University of Dezful Branch in Sanandz in 2012. This experiment was conducted as factorial in a randomized complete block design with three replications. Plant densities were considered at three levels (60, 80 and 100 plants per square meter) and canola cultivars (hayola 308, hayola 401 and S003). The results of analysis of variance showed that plant density and cultivar had a significant effect on grain yield, harvest index and oilseed rape oil yield, while 1000 seed weight, oil percentage and seed number per pod were not affected by density and cultivar treatments. Hayola 401 and Hayola 308 cultivars had the highest seed yield, and their grain yield increased with increasing plant density. The highest grain yield and canola oil yields were at a density of 100 plants / m 2, with an average of 4470 and 2023.82 kg / ha, respectively. The highest grain yield was obtained at 100 and 80 plant / m2.
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