Determination of crop water production function and response of total dry matter and grain yield to deficit irrigation in Maize

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JOROONI ELHAM; ALINEJADIAN BIDABADI AFSANEH; MALEKI ABBAS

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Journal: Journal of Water and Irrigation Management Year:2018 | Volume:7 | Issue:2 Page(s): 241-256

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Title

Determination of crop water production function and response of total dry matter and grain yield to deficit irrigation in Maize

Author(s)

JOROONI ELHAM | ALINEJADIAN BIDABADI AFSANEH | MALEKI ABBAS | Issue Writer Certificate

Keywords

different levels of irrigation waterQ3

droughtQ2

Harvest indexQ1

water use efficiencyQ2

yield componentQ2

Abstract

drought and its stress are the most important factors for crop production. This research was carried out for determination of crop water production function and investigation different levels of irrigation water on yield component total dry matter, grain and Harvest index in different irrigation levels for corn in Khoozestan in a research farm in Islamic Azad University, Dezfool Branch in 1014-2015. It was conducted in randomized complete block design with four treatments including 60%, 80%, 100% and 120% of full irrigation (W60, W80, W100 and W120, respectively) and four replications. According to the total dry matter, grain and shot, the best crop water production function was obtained as linear function with R2 equal 0. 897, 0. 682 and 0. 927, respectively which was significant in level of 1%. In comparison to W60 treatment, full irrigation treatment (W100) increased total dry matter yield (70%) but in comparison to W100, W80 treatment decreased total dry matter yield (5%). On the basis of total dry matter yield and grain (4. 8 and 2. 06 kg/ m3), maximum Harvest index (0. 43) and maximum water use efficiency were obtained for W80 treatment. The results show that the best grain yield and water use efficiency were related to W80.

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APA: Copy

JOROONI, ELHAM, ALINEJADIAN BIDABADI, AFSANEH, & MALEKI, ABBAS. (2018). Determination of crop water production function and response of total dry matter and grain yield to deficit irrigation in Maize. JOURNAL OF WATER AND IRRIGATION MANAGEMENT, 7(2 ), 241-256. SID. https://sid.ir/paper/240045/en

Vancouver: Copy

JOROONI ELHAM, ALINEJADIAN BIDABADI AFSANEH, MALEKI ABBAS. Determination of crop water production function and response of total dry matter and grain yield to deficit irrigation in Maize. JOURNAL OF WATER AND IRRIGATION MANAGEMENT[Internet]. 2018;7(2 ):241-256. Available from: https://sid.ir/paper/240045/en

IEEE: Copy

ELHAM JOROONI, AFSANEH ALINEJADIAN BIDABADI, and ABBAS MALEKI, “Determination of crop water production function and response of total dry matter and grain yield to deficit irrigation in Maize,” JOURNAL OF WATER AND IRRIGATION MANAGEMENT, vol. 7, no. 2 , pp. 241–256, 2018, [Online]. Available: https://sid.ir/paper/240045/en

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