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Articles by O. Sadeghipour
Total Records ( 3 ) for O. Sadeghipour
  O. Sadeghipour , R. Monem and A.A. Tajali
  In order to investigate the effects of different nitrogen and phosphorus levels on yield and yield components of mungbean variety Partow a field experiment was conducted at the Research Farm of the Islamic Azad University of Shahre-rey, in Tehran, Iran in 2009. The experiment was laid out with factorial arrangement in a Randomized Complete Block Design with three replications. Five levels of nitrogen (0, 30, 60, 90 and 120 kg N ha-1) and six levels of phosphorus (0, 30, 60, 90, 120 and 150 kg P2O5 ha-1) were the treatment variables. Results showed that application of N and P fertilizers significantly increased the seed yield. The maximum seed yield (224.2 g m-2) was obtained when 90 kg N ha-1 and 120 kg P2O5 ha-1 was applied. This increase in seed yield was mainly due to more number of pods plant-1, number of seeds pod-1 and 1000 seeds weight. Thus, application of 90 kg N ha-1 and 120 kg P2O5 ha-1 seems to be optimum levels for harvesting highest yield of mungbean.
  A. Bagheri and O. Sadeghipour
  In order to evaluate the effects of salinity on some traits of barley, Four hullless barley (Hordeum vulgare L.) cultivars (Namely, UH3, UHM7, EHM81-12 and CM67) were grown in research station of Islamic Azad University of Eghlid in Iran, under salt stress in two years (2006 and 2007). Four salinity treatments (1, 5, 10 and 15 dS m-1) were used. The experimental design was a split plot which salt treatments were arranged as main plots and cultivars as subplots, based on a randomized complete block design with three replications. The measured parameters were yield and its components, mono, poly and disaccharides content in flag leaves. Results showed that grain yield, biological yield, harvest index, grain per ear, grain weight and plant height were reduced significantly by salt stress. In all treatments of salinity, CM67 cultivar produced the highest and UH3 cultivar produced the lowest grain and biological yield. In all cultivars, salinity stress decreased starch content but increased sucrose content. In high level of salinity, CM67 cultivar had the highest sucrose content (100.20 mg g-1) in comparison with other cultivars. Thus, this cultivar had the highest tolerance to salt stress than the others and is suitable for cultivation in salinity conditions.
  O. Sadeghipour
  In order to investigate the effect of sowing dates on yield and yield components of mungbean varieties a two years field experiment was conducted during 2005 and 2006 in Iran. The experimental design was split plot on the basis of randomized complete block design with four replications. Main plots consisted of three sowing dates (May 30, June 14, 29) and sub plots were also allocated to six varieties (Partow, vc1973, vc1178, vc4152, NM92 and Pusa1973). Results of combined analysis showed that seed yield was significantly affected by sowing dates. The maximum seed yield (102.9 g m-2) was obtained in June 29 sowing date because the number of pods per plant and 1000-seeds weight were also increased. Varieties also responded significantly towards yield and yield components. The maximum seed yield (114.9 g m-2) was produced by vc4152 variety. Interaction effects of sowing dates and varieties were found significant, vc4152 variety sowing on June 29 gave the highest seed yield (134.7 g m-2).
 
 
 
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