EFFECT OF TWO PERIODS OF MID-SEASON DRAINAGE ON GROWTH PARAMETERS OF TWO RICE VARIETIES

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GHASEMI NASR MOHAMMAD; KARANDISH FATEMEH; DARZI NAFT CHALI ABDOLLAH; MOKHTASI BIDGOLI ALI

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Journal: Journal of Water Research in Agriculture Year:2016 | Volume:29 | Issue:4 Page(s): 419-431

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Title

EFFECT OF TWO PERIODS OF MID-SEASON DRAINAGE ON GROWTH PARAMETERS OF TWO RICE VARIETIES

Author(s)

GHASEMI NASR MOHAMMAD | KARANDISH FATEMEH | DARZI NAFT CHALI ABDOLLAH | MOKHTASI BIDGOLI ALI | Issue Writer Certificate

Keywords

INTERMITTENT IRRIGATIONQ1

SUBSURFACE DRAINAGEQ2

PADDY FIELDQ2

Abstract

INTERMITTENT IRRIGATION is a method to increase water productivity of rice (Oryza sativa L.). In this study, the effects of this type of irrigation combined with two periods of midseason drainage on growth parameters of two rice cultivars were investigated in subsurface drained PADDY FIELDs. The experiment was laid out as split plot in a randomized complete block design with three replications during 2014 growing season. The main factor consisted of drainage systems in the study field including three conventional SUBSURFACE DRAINAGE systems with drain depths and spacing of, respectively, 0.9 m and 30 m (D0.9L30), 0.65 m and 30 m (D0.65L30), and 0.65 m and 15 m (D0.65L15). In addition, a bi-level SUBSURFACE DRAINAGE system with drain spacing of 15 m and drain depths of 0.65 and 0.9 m as alternate depths (bilevel), and a treatment without SUBSURFACE DRAINAGE (control) were included in the study. Sub-factors including rice cultivars Hashemi and Daylamani Tarom were planted in the study area. Midseason drainage was conducted in two periods of 10- day (25 to 34 days after transplanting) and 5-day (43 to 47 days after transplanting). During the growing season, sampling was done to determine leaf area index (LAI), total shoot dry weight (TDW), crop growth rate (CGR), relative growth rate (RGR), leaf area ratio (LAR) and net assimilation rate (NAR). Conducting such water management through SUBSURFACE DRAINAGE systems increased most of the studied parameters of Hashemi cultivar so that significant differences were found between CGR, NAR, and RGR of D0.9L30 and the control treatment. Maximum dry weights of Hashemei and Daylamani cultivars were 858.8 and 1006.6 g m-2 related to D0.65L15 treatment and maximum leaf area indexes of these cultivars were 4.87 and 5.43 related to bilevel and control treatments, respectively. However, there were not significant differences among different treatments for each cultivar. Based on the results, two periods of midseason drainage through SUBSURFACE DRAINAGE would improve rice growth characteristics if proper drainage time is selected.

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APA: Copy

GHASEMI NASR, MOHAMMAD, KARANDISH, FATEMEH, DARZI NAFT CHALI, ABDOLLAH, & MOKHTASI BIDGOLI, ALI. (2016). EFFECT OF TWO PERIODS OF MID-SEASON DRAINAGE ON GROWTH PARAMETERS OF TWO RICE VARIETIES. IRANIAN JOURNAL OF WATER RESEARCH IN AGRICULTURE (FORMERLY SOIL AND WATER SCIENCES), 29(4), 419-431. SID. https://sid.ir/paper/196721/en

Vancouver: Copy

GHASEMI NASR MOHAMMAD, KARANDISH FATEMEH, DARZI NAFT CHALI ABDOLLAH, MOKHTASI BIDGOLI ALI. EFFECT OF TWO PERIODS OF MID-SEASON DRAINAGE ON GROWTH PARAMETERS OF TWO RICE VARIETIES. IRANIAN JOURNAL OF WATER RESEARCH IN AGRICULTURE (FORMERLY SOIL AND WATER SCIENCES)[Internet]. 2016;29(4):419-431. Available from: https://sid.ir/paper/196721/en

IEEE: Copy

MOHAMMAD GHASEMI NASR, FATEMEH KARANDISH, ABDOLLAH DARZI NAFT CHALI, and ALI MOKHTASI BIDGOLI, “EFFECT OF TWO PERIODS OF MID-SEASON DRAINAGE ON GROWTH PARAMETERS OF TWO RICE VARIETIES,” IRANIAN JOURNAL OF WATER RESEARCH IN AGRICULTURE (FORMERLY SOIL AND WATER SCIENCES), vol. 29, no. 4, pp. 419–431, 2016, [Online]. Available: https://sid.ir/paper/196721/en

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