Survey of yield and yield components of castor bean genotypes

Subject Areas : crop production

ali sayadi ¹ (دانشگاه آزاد اسلامي، واحد خوي، دانش آموخته كارشناسي ارشد زراعت، خوي، ايران )

Received: 2009-12-31 Accepted : 2010-04-30 Published : 2010-07-01

Keywords: Oil, Genotype, Yield and yield component, Castor bean, (Ricinus communis L.),

Abstract :

To evaluate the growth characteristics , yield , its components and oil content of castor bean (Ricinus communis L.) genotypes in East Azerbaijan an experiment was conducted as randomized complete block design with three replications during 2007 – 2008 in Hadishahr of Jolfa. Seed weight per plant on main and secondary spike, oil yield and its percentage, 100 seeds weight per main and secondary spike, biological yield and harvest index were assessed. The results showed that seed and oil yields and most of characteristics were significantly different among castor bean genotypes. Ashtiyan 1 had higher values for most traits except 100 seeds weight per main and secondary spike, length of main stem, oil percentage and harvest index, with respect to other genotypes. Oil percentage, was higher in Shahreza 1 and Ashtiyan 2 genotypes than other genotypes. Low oil yield of Shahreza 1 genotypes was due to low seed yield. But in Ashtiyan 2 genotype high oil percentage amends low seed yield and this genotype like genotype Ashtiyan 1 had preference with respect to other genotypes in oil yield. It seems that Ashtiyan 1, Ashtiyan 2, and Shahreza 2 genotypes are suitble for cultivation in Hadishahr areas.

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