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ANBAR JOURNAL OF AGRICULTURAL SCIENCES

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Effect of gibberelic acid in growth and wheat yield (Triticum aestivum L.)

    M. A. Hamed

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015, Volume 13, Issue 2, Pages 226-234

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Abstract

A field experiment was carried out during the growing season of 2013- 2014 at the trials field of the Directorate of Agricultural Research - Ministry of Agriculture, to study the effect of foliar application of gibberrelin 0, 100, 200 and 300 mg. l-1 on some growth traits and grain yield of two wheat cultivars' (Bohooth 22 and Bohooth 158). Experimental units were distributed in randomized complete block design with three replications. The result of statistical analysis revealed the Significant effect gibberellin in all studied traits where 300 mg. l-1 gave the highest average of plant height and number of grains per spike (103 cm, 55.17), respectively, while 200 mg.l-1 was gave the highest average for flag leaf area number of spikelet per spike, thousand grain weight and number of spikes per m2 (70.92 cm2, panicle 21.83, 41.10 g, 515 spike.m2 and 5.562 t. h -1), respectively. Whereas varieties did not differ against each other in most of studied traits. The combination 200 mg .l-1 gibberellic acid with cultivar Bohooth 158 was superior as gave the highest average of flag leaf area, number of spikelet per spike and grain yield by an average of 72.86 cm, 22.00 spikelet and 6.00 t. h-1, respectively. It can be recommended that the treatment of wheat plants with 300 mg. l-1 of gibberellic acid can improve the growth and grain yield of wheat.
Keywords:
    gibberelic acid Wheat yield highest Flag leaf area number of spikelet
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(2015). Effect of gibberelic acid in growth and wheat yield (Triticum aestivum L.). ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 13(2), 226-234.
M. A. Hamed. "Effect of gibberelic acid in growth and wheat yield (Triticum aestivum L.)". ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 13, 2, 2015, 226-234.
(2015). 'Effect of gibberelic acid in growth and wheat yield (Triticum aestivum L.)', ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 13(2), pp. 226-234.
Effect of gibberelic acid in growth and wheat yield (Triticum aestivum L.). ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015; 13(2): 226-234.
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