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• Rahimi.Mohammad Mahdi The effect of planting date and nitrogen on yield and yield components of Linseed, Linum usitatissimum L. [ Vol.5, Issue 1 - Spring Year 1388]
• Rashidi.Varahram Effects of plant distance and tuber size on yield and yield component of potato varieties [ Vol.5, Issue 3 - Winter Year 1388]
• Rezaee.Saied The effect of Rhizobium leguminosarum strains on Fusarium root rot disease of bean [ Vol.5, Issue 4 - Winter Year 1388]
• Roozbahani.Arash Effect of integrated mechanical and chemical methods on yield and yield components of corn in Karaj region, Iran. [ Vol.5, Issue 3 - Winter Year 1388]