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:: Volume 2, Issue 1 (Journal of Oil Plants Production 2015) ::
3 2015, 2(1): 29-41 Back to browse issues page
Study of genetic diversity and relationships among quantitative and qualitative traits in different soybean (Glaycine max L.( cultivars
Mhmoud Ghorbanzadeh Neghab *
, Ferdowsi University of Mashhad-Shirvan Higher Education Complex, Mashhad, Iran , ghorbanzadeh@um.ac.ir
Abstract:   (6485 Views)

Soybean is one of the most important oil production resources in the world. In order to study of genetic diversity and relationships among quantitative and qualitative traits of 14 soybean cultivars, an experiment was conducted as a randomaized complete block design with four replications in 2013 at the Agriculture Research Farm, Shirvan Higher Education Complex. 12 traits such as seed and components yield, protein and oil content were evaluated. The results showed that there were significant differences among genotypes for all traits except protein content, which indicates the existence of genetic variations between genotypes. Zane, Century and Clombus cultivars had the highest seed yield, although, the lowest yield was achieved in Habit cultivar. Results showed that seed yield was positively and significantly correlated with number of pods per plant, number of seeds per pod, number of seeds per plant,100 seed weight, oil content, protein content and harvest index and there were significant and negative correlation between seed yield with number of days from planting to flowering . The Zane cultivar had the highest oil content of 515.8 kg ha-1. Based on the stepwise regression and path analysis the grain yield of soybean cultivars were explained by the direct and indirect effects 100 seed weight, number of pods per plant, number of seeds per pod and number of seed per plant. Considering to the residual effects and the coefficient of determination (86.7 percent), the large proportion of the variation in seed yield of soybean were determined with these four traits of seed yield. Path analysis showed that the greater and lower direct positive effects on seed yield were related to 100-seed weight and seed number per plant, respectively. In general, Zane , Columbus and Cencurty cultivars due to their high oil and seed yields can be proposed cultiveting in North Khorasan.

Keywords: Regression, yield components, protein and oil contents
Full-Text [PDF 162 kb]   (354 Downloads)    
Type of Study: Research | Subject: Special
Received: 2015/01/31 | Accepted: 2015/07/11 | Published: 2015/09/21
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Ghorbanzadeh Neghab M. Study of genetic diversity and relationships among quantitative and qualitative traits in different soybean (Glaycine max L.( cultivars. 3. 2015; 2 (1) :29-41
URL: http://yujs.yu.ac.ir/jopp/article-1-41-en.html


Volume 2, Issue 1 (Journal of Oil Plants Production 2015) Back to browse issues page
سامانه نشریات دانشگاه یاسوج - مجله تولید گیاهان روغنی Journal of Oil Plants Production
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