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2
1997-1999 y ı lları aras ı nda Ankara Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü deneme tarlas ı nda yürütülen bu çal ışmada, farkl ı doz ve zamanlarda arpaya uygulanan ethephonun tane verimine etkileri incelenmi ştir. Denemede Tokak 157/37 ve Bülbül 89 iki s ı ral ı arpa çeşitleri ile Yı ld ı r ı m ve Ergine1-90 alt ı sı ral ı arpa çeşitleri kullan ı lmışt ı r. Ethephon uygulamalar ı sapa kalkma, başaklanma öncesi ve çiçeklenme sonu dönemlerinde O, 15, 30, 45 ve 60 g/da dozlar ı nda uygulanm ıştir. Araşt ı rmada her iki deneme y ı l ı na ilişkin sonuçlar ayr ı ayr ı de'gerlendirilmi ştir. Araşt ı rma sonuçlar ı na göre; dört arpa çeşidine farkl ı doz ve zamanda ethephon uygulanmas ı yla tane verimi yönünden önemli farkl ı l ı klar saptanm ışt ı r Denemenin birinci y ı l ı nda en yüksek tane verimi Tokak 157/37 çe şidinden, ikinci y ı l ı nda ise Bülbül 89 çeşidinden elde edilmiştir. Her iki y ı lda başaklanma öncesinde 30 g/da ethephon uygulamas ı yla en yüksek tane verimleri elde edilmiştir.
In the 1997-1999 centuries, the study was carried out in the experimental field of the Department of Farm Plants of the Ankara University Ziraat Faculty, the difference in the dose and the effects of the ethephon applied to the arpa in time. In the trial Tokak 157/37 and Bulbul 89 two s ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral ral It is the result of both trials and the result of the trials is divided. According to the results of the research, the difference between the four arpa varieties is the dose and the time of the ethephon application and the significant difference in terms of production is the clear detection of the light and the highest yield in the first and the highest yield in the first and the highest yield in the first and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and the highest yield in the second and Both of them had the highest yields of 30 g/day ethephon application before the start of both yda.
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