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EFFECT OF IRRIGATION WATER AMOUNT AND SCHEDULING ON WATER-USE EFFICIENCY AND SOME INDICATORS OF GROWTH AND YIELD OF CORN | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 2014, Issue 2, 2009, Pages 0-0 | ||
| Authors | ||
| N. M. Fayadh; A. M. Mohammed; F. M. Ali | ||
| Abstract | ||
| A field experiment was carried out during Autumn-2006 in Al-Karma region (60 km East of Al-Anbar province center). The purpose of this study is to determine the effect of irrigation scheduling and adequacy on water use efficiency and some growth and yield parameters for the species Zea mays L. var. IPA 5012. The experiment included three treatments namely; Io, I1 and I2. The Io treatment received (800) mm irrigation water depth as a total seasonal consumptive use and in which, The farmer who decides the time and the amount of the irrigation water application. Both I1 and I2 treatments have received the same amount of water depth which was (600) mm as a seasonal consumptive use in different scheduling. Whereas the I1 treatment in which plant was undergone to relative moisture stress at vegetative growth and flowering stages, and received enough water irrigation at germination and maturing stages. While the I2 treatment in which plant was undergone to relative moisture stress at germination and maturing stages and received enough water at vegetation and flowering stages. Thirty plants for each treatment were randomized selected from the begining, middle and ending of the furrow to measure and calculate the rates of plant height, root depth leaf area, leaf area index, plant dry weight, ears, grain yield/plant, and yield efficiency. Also, water–use efficiency was calcaulated for all treatments. Result showed that the I2 treatment was overcome significantly on the I0 and I1 treatments in all the growth and yield parameters menstioned above except the ears. Since this character is not influenced by environmental factors. this confirms previous research which is considered as a character highly correlated with genotype. Result also indicates that about 25 percentage of irrigation water can be preserved under the condition of the experiment by following a proper scheduling. | ||
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