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Articles by Hamid Reza Balouchi
Total Records ( 2 ) for Hamid Reza Balouchi
  Hamid Reza Balouchi , Zeinalabedin Tahmasbi Sarvestani and Seyed Ali Mohammad Modarres Sanavy
  Yield and yield components evaluation of different hulless barley (Hordeum vulgare L.) genotypes with objective determination of the best plant density and nitrogen fertilizer rate is necessary for obtaining maximum quality and quantity yield. In the first year, for these propose twenty genotypes were evaluated in aspect of quality and quantity yield. In second experiment, ten best genotypes selected from the first experiment were evaluated for agronomic factors such as plant density and N fertilizer rate application. Both experiments were conducted in Research Farm of Tarbiat Modarres University, College of Agriculture, Tehran, Iran during 2001-2003 growing season. The experimental designs of first and second experiments were Randomized Complete Block and Split-Split-Plot laid out in Randomized Complete Block designs, respectively, with three replications and a total of ten genotypes (as main plot), 2 levels of nitrogen fertilizer (90 and 120 kg nitrogen ha-1 as subplot) and 3 plant densities (300, 400 and 500 plants m-2 as sub sub-plot). The results showed that a significant difference between genotypes and plant density interaction in grain yield and harvest index. The highest grain yield, spike number m-2 and grain number spike-1 were produced by ALLSO`S`/C103902-2 genotype under 500 plant m-2. FICC2595 Genotype showed the highest thousand-kernel weight (46 g) and FICC1570 genotype produced the highest spike number m-2 (958 spike m-2). The mean comparison of protein yield in different plant density m-2 showed that 500 plants m-2 treatment produced the highest protein yield (58.48 g m-2).
  Hamid Reza Balouchi and Seyed Ali Mohammad Modarres Sanavy
  The objective of the present study was to investigate effective methods in breaking the seed dormancy for annual medics’ species. Three experiments were conducted to evaluate seed germination of annual medics including Medicago radiata, Medicago polymorpha and Medicago rigidula under different prechilling, gibberellic acid and potassium nitrate concentrations and sulfuric acid concentrations in 5 and 10 min of applying time. The result showed that all methods broke seed dormancy and exhibited seed germination of annual medics, but some cases were different in cultivars. The most effective and practical method for seed dormancy breaking in M. polymorpha and rigidula was 96% sulfuric acid application for 10 min. The main advantages of this method are speed, ease of use and unaltered physical condition of the seeds following treatment and cheap. The concentration of 750 ppm gibberellic acid with prechilling in 4°C was the most effective and practical method in breaking hard seed dormancy of M. radiata.
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