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Journal of Agronomy
Year: 2005  |  Volume: 4  |  Issue: 4  |  Page No.: 333 - 339

Agronomic Factors on Selected Hulless Barley Genotypes

Hamid Reza Balouchi, Zeinalabedin Tahmasbi Sarvestani and Seyed Ali Mohammad Modarres Sanavy    

Abstract: 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).

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