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Research Article Open Access
In order to investigate the effect of the amount plant density on yield, yield components and growth characteristics of spring type of forage canola in summer cultivation, this experiment was conducted in Ghazvin(Esmail Abad) at 2011- 2012. This experiment was done in split plot form and with a randomized complete block design with three replications. The main factor included five levels of plant density :( 100, 125, 150, 175 and 200 plant per m2). The sub factor included two varieties of spring type of Canola including RGS003 and SARIGOL. The impact of plant density (p≤0.01) on final dry forage in stem elongation was significant. The highest dry forage yield in stem elongation was obtained from applying 175 plants per m2 and RGS003 variety with the average of 665.4(kg.h-1). Increasing or decreasing in plant density resulted to decreasing in LAI. The effect of plant density and cultivars were significant on crop growth rate (CGR), relative growth rate (RGR), net assimilation rate (NAR), specific leaf weight (SLA), leaf area ration (LAR) and leaf area index (LAI).
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Author(s): Behnam Ahmadi Amir Hosein Shirani Rad and Babak delkhosh
Canola (Brassica napus L.), Plant density (PD), forage fat yield, protein yield.