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INFLUENCE OF INTERVAL BETWEEN IRRIGATIONS ON WATER USE EFFICEUCY GROWTH AND YIELD OF THREE SORGHUM (Sorghum bicolor) CULTIVARS | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 2, Issue 16, 2011, Pages 0-0 | ||
| Authors | ||
| R. O. Salih; M. I. Hmadan; Gh. H. Tawfeeq | ||
| Abstract | ||
| Field experiment was conducted in two consecutives summer seasons 2004 and 2005 at Field Crops Research Station in Abu–Graib 25km west of Baghdad، State Board for Agriculture Research. The soil type is clay loam soil. Three cultivars of grain sorghum (Sorghum bicolor), Caffier, Engath and Rabih were subjected to four intervals between irrigations: 5, 10, 15 and 20 days. The results showed that the height of plants and yield decreased with increase intervals between irrigations. Caffier cultivar was found to be early in blooming and maturity. The two cultivars Engath and Rabih gave high yield compared with Caffier. The highest yield was observed when the interval between irrigations was 5 days. When the intervals extend to 15 or 20 days this caused a reduction in yield amount to 9% and 25% respectively. The water use efficiency for the three cultivars Engath, Rabih and Caffier were 0.730, 0.650 and 0.500 kg/m3 respectively. | ||
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