EFFECTS OF DEFICIT IRRIGATION ON YIELD AND WATER USE EFFICIENCY OF EARLY CORN

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ANSARI H.; MIRLATIFI S.M.; FARSHID A.A.

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Journal: Iranian Journal of Soil Research Year:2006 | Volume:20 | Issue:2 Page(s): 338-348

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Title

EFFECTS OF DEFICIT IRRIGATION ON YIELD AND WATER USE EFFICIENCY OF EARLY CORN

Author(s)

ANSARI H. | MIRLATIFI S.M. | FARSHID A.A. | Issue Writer Certificate

Keywords

DEFICIT IRRIGATIONQ2

WATER STRESSQ2

WATER USE EFFICIENCYQ2

CORNQ2

Abstract

The effects of DEFICIT IRRIGATION on yield, yield components, and WATER USE EFFICIENCY (WUE) of three cultivars of early CORN (301, 303, and 315) were evaluated at Varamin agricultural research institute. The experimental plots were irrigated by a line -Source sprinkler irrigation system. Six different levels of irrigation depth were considered at each sides of the lateral and treatments were replicated three times along the length of the lateral. The results indicated that CORN yield and yield components decreased significantly due to DEFICIT IRRIGATION, but, the responses of the cultivars to DEFICIT IRRIGATION were not the same. The production functions of each one of the cultivars were found. Yield response factor (Ky) were found to be1.43, 1.35 and 1.37 for 301, 301 and 315 cultivars, respectively. The highest WUE was not obtained from I6 irrigation level, but from I5 for 301 and 303 cultivars and from I4 for 315 cultivar. Cultivar 315 had the highest WUE as compared with the other two cultivars. Variations of relative yield reduction and production efficiency at different irrigation levels for each of three cultivars were approximately the same. In average, as compared with I6 treatment, in response to 1% moisture reduction, yield decreased relatively 1.4%.

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APA: Copy

ANSARI, H., MIRLATIFI, S.M., & FARSHID, A.A.. (2006). EFFECTS OF DEFICIT IRRIGATION ON YIELD AND WATER USE EFFICIENCY OF EARLY CORN. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, 20(2), 338-348. SID. https://sid.ir/paper/16075/en

Vancouver: Copy

ANSARI H., MIRLATIFI S.M., FARSHID A.A.. EFFECTS OF DEFICIT IRRIGATION ON YIELD AND WATER USE EFFICIENCY OF EARLY CORN. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES[Internet]. 2006;20(2):338-348. Available from: https://sid.ir/paper/16075/en

IEEE: Copy

H. ANSARI, S.M. MIRLATIFI, and A.A. FARSHID, “EFFECTS OF DEFICIT IRRIGATION ON YIELD AND WATER USE EFFICIENCY OF EARLY CORN,” IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, vol. 20, no. 2, pp. 338–348, 2006, [Online]. Available: https://sid.ir/paper/16075/en

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