عنوان :
بررسي گسترش ريشه و ساير صفات مورفولوژيك ارقام گندم ديم دردو رژيم رطوبتي
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
ده، 93، [II] ص.: جدول، نمودار
يادداشت :
ص.ع. يه فارسي و انگليسي
استاد راهنما :
محمد رضا خواجه پور
استاد مشاور :
مرتضي زاهدي
توصيفگر ها :
اكولوژي , عملكرد بيولوژيك
تاريخ نمايه سازي :
12/10/86
استاد داور :
خورشيد رزمجو ،امير حسين خوشگفتار منش
چكيده فارسي :
به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال
چكيده انگليسي :
AbstractUnderstanding the inherent characteristics of wheat root related to development and droughtresistance leading to successful production of dryland wheat yield are very important underconditions of Iran with large seasonal and annual variation in precipitation The purpose ofthis study was to evaluate root growth and developmental characteristics and grain yield ofdryland wheat cultivars under various environmental conditions The experiment wasconducted using factorial layout within a randomized complete block design with fourreplications in 2007 at the Isfahan University of Technology Isfahan Iran The treatmentswere two irrigation regimes irrigation after 50 and 80 percent depletion of root zone soilavailable water SAW two types of soil namely Shervedan and Lavark and four drylandwheat cultivars Zagros Koohdasht Alborz and Falaat The results showed that irrigationregimes soil types cultivars and their interactions significantly affected the root total dryweight RTDW depth volume surface and cumulative length Irrigation after 80 versus50 percent SAW depletion decreased the RTDW by 12 percent Plants in Shervedan soilproduced higher RTDW 26 percent as compared to Lavark soil Among the cultivars Alborzand Falaat produced the highest and lowest RTDW respectively Falaat produced the highestand lowest RTDW in 50 and 80 SAW depletion regimes respectively RTDW of Alborz Zagros and Falaat were lower by 0 243 gr 26 0 307 gr 38 and 0 388 gr 49 inShervedan versus Lavark soil respectively Conversely RTDW of Koohdasht was higher by0 142 gr 18 in Shervedan versus Lavark soil RTDW of Koohdasht in Lavark soil wassignificantly increased with 80 SAW depletion treatment than others Biological yield above ground dry matter weight grain yield per plant and harvest index were significantlyaffected P 0 01 by irrigation regime soil type cultivar and their interactions Grain yielddecreased by 24 percent in 80 SAW depletion as compared to 50 SAW depletion regime Plants in Shervedan soil had higher grain yield 24 than in Lavark soil Koohdasht andZagros had the highest and lowest grain yield respectively Among the root morphologicalcharacteristics studied the cumulative root length R 0 48 and root number R 0 46 had the highest correlation coefficients with the grain yield Among the cultivars studied Koohdasht showed the highest yield potential under various environmental conditions and hadthe highest root development in deep soil Thus Koohdasht might be suitable for further anddetailed studies
استاد راهنما :
محمد رضا خواجه پور
استاد مشاور :
مرتضي زاهدي
استاد داور :
خورشيد رزمجو ،امير حسين خوشگفتار منش
