The Effect of Supplemental Irrigation on the Yield and Quality of Barley in Semi-arid Conditions

Abstract

This research was carried out aim to assess the most appropriate supplementary irrigation program (TS) for barley in Harran Plain conditions during the 2012-2013 production season. In the study, effects of applied irrigation on consideration of the different phenological development periods of the plant were evaluated on yield, quality, yield components, water consumption (ET) and water use efficiency. For this purpose, 9 different irrigation programs were applied considering three different growth stages of barley (stem elongation, heading and milk stage). As a result of the research, complementary irrigation made up stem elongation, heading, milk stage gave the highest yield. The irrigation water requirement of this treatment was 289 mm, the water consumption was 514 mm and the yield was 569 kg da-1. Through the growth season of the one-time irrigated treatments, maximum yield was obtained from irrigated during the heading period, through the two times irrigated treatments, maximum yield was obtained from irrigated during the heading and milk stage periods. The thousand kernel-weights of experimental treatments varied between  38.3 g and 48.2 g, water use efficiencies were between 0.18 kg m-3 and 0.93 kg m-3 and irrigation water use efficiencies were between is 0.38 kg m-3 and 1.63 kg m-3. Protein ratios of the treatments were between %9.4 and %11.1, cellulose ratios were between %6.1 and %7.2. 

Keywords

• Barley,Harran Plain,supplemental irrigation,water consumption,quality

Yarı Kurak Koşullarda Tamamlayıcı Sulamanın Arpada Verim ve Kaliteye Etkisi

Abstract

Bu araştırma, 2012-2013 üretim sezonunda Harran Ovası koşullarında arpa için en uygun tamamlayıcı sulama (TS) programını belirlemek amacıyla yürütülmüştür. Araştırmada, yetişme mevsimi boyunca bitkinin fenolojik gelişme dönemleri göz önüne alınarak, uygulanan tamamlayıcı sulamaların arpada verim, kalite, verim bileşenleri, bitki su tüketimi, (ET) ve su kullanım randımanı üzerine etkileri irdelenmiştir. Bu amaçla bitkinin üç farklı büyüme dönemi dikkate alınarak (sapa kalkma, başaklanma ve süt olum) 9 farklı sulama programı uygulanmıştır. Araştırma en yüksek verim, sapa kalkma, başaklanma ve süt olum dönemlerinde üç kez sulanan konudan elde edilmiştir. Bu konuya 289 mm sulama suyu uygulanırken su tüketimi 514 mm ve verimi 569 kg da-1 olmuştur. Yetişme dönemi boyunca bir defa sulanan konulardan en yüksek verim başaklanma dönemi sulanan konudan, iki defa sulanan konulardan ise en yüksek verim başaklanma ve süt olum dönemleri sulanan konulardan elde edilmiştir. Deneme konularının bin dane ağırlıkları 38.3 g ile 48.2 g arasında, su kullanım randımanları 0.91 kg m-3 ile 2.64 kg m-3 arasında sulama suyu kullanım randımanları ise 0.30 kg m-3 ile 1.63 kg m-3 arasında değişirken, protein içerikleri %9.4 ile %11.1 arasında selüloz oranları %6.1 ile %7.2 arasında değişmiştir.

Keywords

• Arpa,Harran Ovası,tamamlayıcı sulama,su tüketimi

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