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ROLE OF IRRIGATION DEPTH AND FREQUENCY IN GROWTH AND YIELD OF MAIZE 2. WATER USE EFFECIENCY, GRAIN YIELD AND ITS COMPONENTS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 41, Issue 6, 2010, Pages 40-47 | ||
| Author | ||
| H . M . K . AL . Abodi | ||
| Abstract | ||
| A field experiment was conducted at Field Crops Research Station / Abu - Ghraib during 2008 - 2009 Seasons to study effect of irrigation depth and frequency on corn yield and components. The layout of the experiment was a split - plot in RCBD with four replications. Irrigation frequency 5 and 10 days were the main plots while the depths (6, 9 and 12 cm) refers to water quantities (900, 1350 and 1800 liter) were the Sub-plots. The results shows that irrigation every 5 days was superior in ears numbers per plant, seeds per ear , seed weight and plant yield which reach 138.6 and 159.6 gm / plant for both spring seasons and 154.5 and 174.7 for both fall seasons , respectively. Grain yield reaching 8.673 , 9.990 and 9.674 , 10.938 ton/h. Irrigation depth 12 cm was superior in ears number per plant , Seeds per ear , seed weight and plant yield which reach 116.3 , 136.8 gm / plant and 142.1, 160.1 gm / plant . Water used efficiency reached o.549 , 0.638 and 0.558 , 0.627 kg/m2 for both spring and fall seasons , respectively. In conclusion , an increasing in plant's yield in fall season was observed as compared with spring season . This would reflect the positive influence of high temperature or both . Propagation and elongation and temperate temperature on pollination and fertilization of the plant . It was recommended the using of irrigation every five days . This will be helpful in yield increasing . Scheduling and repeating of irrigation as well as high water quality availability during each irrigation of the maiz were also recommended . This will be necessary to prevent the surplus of water and to increase the awareness of irrigation concepts . This will lead to the availability of excess irrigation water that be useful in future agricultural expansion. | ||
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