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Effect of different ethephon doses on grain yield and yield components of in barley (Hordeum vulgare L.)
(Effect of different ethephon doses on grain yield and yield components of in barley (Hordeum vulgare L.) )

Author : Arzu MUTLU  Abdullah ÖKTEM  
Type :
Printing Year : 2020
Number : 2020-3
Page : 141-151


Summary
Bu çalışma, 2008-2009 ve 2009-2010 yetiştirme sezonlarında Harran Ovası ilave sulanan koşullarda yürütülmüştür. Bu çalışma ile farklı dozlardaki ethephon uygulamalarının makarnalık buğday ve arpa çeşitleri üzerine etkilerini belirlemek amaçlanmıştır. Denemede 9 ethephon dozu (0, 240 g/ha, 360 g/ha, 480 g/ha, 600 g/ha, 720 g/ha, 840 g/ha, 960 g/ha, 1080 g/ha) uygulanmıştır. İki yılın birleşik analiz sonuçlarına göre arpa bitkisinde de artan ethephon dozlarına paralel olarak tane veriminde artış meydana gelmiştir. Sur-93 arpa çeşitinde kontrol uygulamasında tane verimi 275.225 kg/da iken 600 g/ha ethephon uygulamasında 436.563 kg/da’a yükselmiştir. Yerli arpa çeşitinde ise tane verimi, kontrol uygulamasında 197.000 kg/da iken 960 g/ha ethephon uygulamasında 359.100 kg/da’a yükselmiştir. Yerli arpa çeşitinde 960 g/ha ile 1080 g/ha ethephon uygulamaları arasında istatistiki açıdan bir farklılık görülmemiştir. Yıllar ve çeşitler birlikte değerlendirildiğinde arpada en yüksek tane verimi 960 g/ha ethephon uygulamasında elde edilmiştir. Sonuç olarak, arpada ethephon uygulamasının bitki boyunu kısalttığı verimi %37-46 yükselttiği, çeşite göre uygulanan dozun değiştiği anlaşılmıştır. Yerli arpa çeşitinde 960 g/ha, Sur-93 çeşidinde 600 g/ha ethephon uygulamalarının tavsiye edilebilir ve ekonomik anlamda en uygun uygulamalar olduğu söylenebilir.

Turkish Keywords
Arpa, ethephon, verim, kalite, yatma

Abstract
This study was carried out under supplementary irrigated conditions in the Harran Plain in 2008-2009 and 2009-2010 growing seasons. The study aimed to assess the effects of various ethephon doses on durum wheat and barley cultivars. Nine ethephon dosages (0, 240 g/ha, 360 g/ha, 480 g/ha, 600 g/ha, 720 g/ha, 840 g/ha, 960 g/ha, 1080 g/ha) were applied in the study. The results of the combined analysis of two years, indicated that the highest grain yield on barley was found for Sur-93 cultivar with 404.875 kg/da (with 1080 g/ha ethephon dose application) while the lowest grain yield of barley was obtained from land race black barley with 197.800 kg/da (in control application). The result revealed that ethephon had positive effect on to grain yield. There was not any statistical significants between 960 g/ha and 1080 g/ha ethephone doses in terms of grain yields for land race black barley cultivar. When the years and barley cultivars is evaluated together, the highest grain yield is obtained with 960 g/ha dose of ethephon. Results showed that ethephon application to barley shortened plant height and increased 37-46% of barley yield, and the effects of ethephone varied were connected to cultivar specific. In addition Sur-93 600 g/ha, and a land race black barley cultivar 960 g/ha could be recommended.

Keywords
Barley, ethephon, yield, quality, lodging

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