TY - JOUR T1 - Investigation of drought stress effects on some quantity and quality characteristics of new eugenics sugar beet genotypes TT - بررسی تأثیر تنش خشکی روی برخی خصوصیات کمی و کیفی ارقام جدید اصلاح شده چغندرقند JF - NCMBJ JO - NCMBJ VL - 1 IS - 3 UR - http://ncmbjpiau.ir/article-1-47-en.html Y1 - 2011 SP - 65 EP - 74 KW - Sugar Beet; Plant Density; Water Stress; Yield N2 - Normal 0 false false false EN-US X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal" mso-tstyle-rowband-size:0 mso-tstyle-colband-size:0 mso-style-noshow:yes mso-style-priority:99 mso-style-qformat:yes mso-style-parent:"" mso-padding-alt:0in 5.4pt 0in 5.4pt mso-para-margin-top:0in mso-para-margin-right:0in mso-para-margin-bottom:10.0pt mso-para-margin-left:0in line-height:115% mso-pagination:widow-orphan font-size:11.0pt font-family:"Calibri","sans-serif" mso-ascii-font-family:Calibri mso-ascii-theme-font:minor-latin mso-fareast-font-family:"Times New Roman" mso-fareast-theme-font:minor-fareast mso-hansi-font-family:Calibri mso-hansi-theme-font:minor-latin mso-bidi-font-family:Arial mso-bidi-theme-font:minor-bidi} Aim and Background. In order to study the effect of drought stress on some quantity and quality characteristics of sugar beet genotypes a field experiment was carried out at Agricultural Research Station of Khoy in 2009. Materials and Methods. Treatments was arranged in strip block experiments based on completely randomized block design with three replications. Three sugar beet hybrid varieties were as Rasoul, Shirin and 7112.   Results. The results showed that the water stress on root yield, white sugar content, sugar content, root length, fresh and dry weight of leaves, petioles and roots were significant. Effects of cultivar on most traits studied were significant, and Rasoul was significantly higher than others of root yield and white sugar yield. The interaction between cultivar and water stress was not significant. Due to stress and free- stress environments, Shoot fresh weight reduction showed the water storage in cultivars is non-equal. Decrease in shoot dry weight and total dry weight indicate that drought stress have reducing affects on the growth of shoot parts and total dry weight.Conclusion. Noticeable point in the results was that the traits sugar content and white sugar yield, impurities of nitrogen, sodium and potassium, and molasses sugar in two environments revealed no significant difference.  M3 ER -