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Assessment of ET-HS model for estimating crop water demand and its effects on yield and yield components of barley and wheat in semi-arid region of Iran

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dc.contributor.author Soleymani, A.
dc.contributor.author Shahrajabian, M.H.
dc.date.accessioned 2021-04-27T10:26:40Z
dc.date.available 2021-04-27T10:26:40Z
dc.date.issued 2017-12-27
dc.identifier.citation Soleymani, A., M.H. Shahrajabian. 2017. ”Assessment of ET-HS model for estimating crop water demand and its effects on yield and yield components of barley and wheat in semi-arid region of Iran”. Cercetări Agronomice în Moldova 50 (4): 37-49. DOI: 10.1515/cerce-2017-0034. en_US
dc.identifier.uri https://repository.uaiasi.ro/xmlui/handle/20.500.12811/1006
dc.description.abstract In order to estimate the water requirement of barley and wheat by using of ET-HS model, a research was conducted at Research Farm of Islamic Azad University, Isfahan (Khorasgan) Branch, Iran. ET-HS model is used to determine irrigation water quantity and irrigation schedule for different crop. The study was based on randomized complete block design (RCBD) with three replications and six treatments. The irrigation treatments included irrigation to supply 50, 75, 100, 125 and 150% of crop water demand on the basis of ET-HS model during growing season and control treatment (conventional irrigation), which was irrigation on the basis of 70 mm evaporation from Class A evaporation pan during growing season. In barley experiment, the highest values for number of fertile tiller, maximum LAI, total dry matter in maximum LAI stage, number of grain per spike, a thousand seed weight (35.56 g), grain yield (7877.9 kg/ha), biological yield (17689.7 kg/ha) and harvest index (44.45%) was obtained for irrigation according to 100% of crop water demand on the basis of ET-HS model. In wheat experiment, the highest number of fertile spike, number of grain per spike, 1000 grain weight, grain yield, biological yield was obtained for irrigation treatment on the basis of 100% ET-HS model; moreover, the maximum harvest index was related to control treatment, followed by irrigation on the basis of 100% of ET-HS model. Conclusively, the appropriate irrigation treatment was 100% of crop water demand on the basis of ET-HS model during the growth season for both crops. en_US
dc.language.iso en en_US
dc.publisher "Ion Ionescu de la Brad" University of Agricultural Sciences and Veterinary Medicine, Iași en_US
dc.subject irrigation schedule en_US
dc.subject evaporation en_US
dc.subject LAI en_US
dc.subject grain yield en_US
dc.subject harvest index en_US
dc.title Assessment of ET-HS model for estimating crop water demand and its effects on yield and yield components of barley and wheat in semi-arid region of Iran en_US
dc.type Article en_US
dc.author.affiliation A. Soleymani, M.H. Shahrajabian, Department of Agronomy and Plant Breeding, Islamic Azad University, Isfahan (Khorasgan) Branch, Iran
dc.publicationName Cercetări Agronomice în Moldova
dc.volume 50
dc.issue 4
dc.publicationDate 2017
dc.startingPage 37
dc.endingPage 49
dc.identifier.eissn 2067-1865
dc.identifier.doi 10.1515/cerce-2017-0034


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