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EFFECT OF WATER QUANTITES AND SOWING DATES ON YIELD AND YIELD COMPONENTS OF FOUR WHEAT CULTIVARS | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 2014, Issue 2, 2009, Pages 0-0 | ||
| Authors | ||
| A. S. Al-Gyyair; I. S. Alsaadawi; H. J. Attiya | ||
| Abstract | ||
| Field experiment was conducted during 2002-2003 and 2003-2004 growing season to test the effects of four amounts of irrigated water viz 200, 300, 400 and 500mm (control) and two sowing dates viz 15 November and 15 December on yield and yield coponents of wheat cultivars Abu Graib3, Iba 95, Hasimia and Babylon 113. Results revealed that grain yield significantly reduced by 27.3, 19.6 and 7.2% in the first three treatments respectively than control treatment(500mm)in the first saeson and 26.1,18.6 and 7.9% in the second season.Grain yield reduced by 5.4,3.6% in the second sowing date than in the first sowing in both season respectively. Abu Graib3 cultivars gave higher mean grain yield than other test cultivars while Alhashimia gave the lowest mean grain yield under all the treatments which had been studied. The present study revealed that possibility of saving 20% of water amount with grain yield reduction about 7% of control treatment(500mm) when sowing started at November 15.This amount of water can be used for cultivation of additional area. | ||
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