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Bazı ekmeklik buğday çeşitlerinin potasyum kullanım etkinliliği

Potassium-use efficiency of some bread wheat cultivars

Journal Name:

  • Biological Diversity and Conservation

Publication Year:

  • 2014

Key Words:

Keywords (Original Language):

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Abstract (2. Language): 
The experiment was carried out in two vegetation seasons, years of 2009/10 and 2010/11. The main purpose of the study was to investigate the effects of potassium (K) doses (a control-0, 25, 50 and 75 kg ha-1) on grain yield, K-use efficiency, K-uptake efficiency and K-utilization efficiency of some bread wheat cultivars (Gerek-79, Gün-91, Harmankaya, Altay-2000, Yıldız and Sultan) under the semi-arid climatic conditions. The experiment was set up according to a randomized complete block design in a split-plot arrangement with three replicates, where potassium doses were main plots while the wheat cultivars were in subplots split within main plots. Of the wheat cultivars, the highest grain yield, the highest K-use efficiency and the highest K-utilization efficiency were obtained from Altay-2000 in both 2009/10 and 2010/11, the highest K-uptake efficiency from the Sultan during 2009/10 and Gerek-79 during 2010/11. Of the potassium doses, while the highest grain yield, the highest K-use efficiency and the highest Kutilization efficiency were determined from the 50 and 75 kg ha-1 K doses, the highest K-uptake efficiency was obtained from the 25 kg ha-1 K dose in both 2009/10 and 2010/11. The effect of the cultivars x K dose interactions on grain yield, K-use efficiency, K-uptake efficiency and Kutilization efficiency of wheat were statistically (p<0.05 and p<0.01) significant in the both years. Of the interactions between the wheat cultivars and the K doses, the highest grain yield (3347 kg ha-1 in 2009/10 and 3509 kg ha-1 in 2010/11) and the highest K-use efficiency (33.4% in 2009/10 and 35.1% in 2010/11) were determined from the 50 kg ha-1 K in Altay-2000. The highest K uptake was obtained from the 25 kg ha-1 K in Sultan cultivar (76.2%) during 2009/10 and the 25 kg ha-1 K in Gün-91 (71.1%) during 2010/11. The highest K-utilization efficiency was determined from the 75 kg ha-1 K in Sultan cultivar (105.3% and 107.5%, respectively) in both years.
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Abstract (Original Language): 
Deneme 2009/10 ve 2010/11 yıllarında iki vejetasyon döneminde yürütülmüştür. Çalışmanın amacı yarı kurak iklim koşullarında bazı ekmeklik buğday çeşitlerinin tane verimi, K-kullanım etkinliği, K-alım etkinliği ve K’dan yararlanma etkinliğine potasyum (K) dozlarının (kontrol-0, 25, 50 ve 75 kg/ha) etkisini araştırma amacıyla yürütülmüştür. Deneme tesadüf bloklarında bölünmüş parseller deneme desenine göre 3 tekerrürlü olarak, ana parsellere potasyum dozları ve ana parselleri içerindeki alt parsellere buğday çeşitleri gelecek şekilde kurulmuştur. Buğday çeşitleri arasında hem 2009/10’da hem de 2010/11’de en yüksek tane verimi, K-kullanım etkinliği ve K’dan yararlanma etkinliği Altay-2000 çeşidinden, en yüksek K-alım etkinliği Sultan çeşidinden elde edilmiştir. Potasyum dozları arasında, hem 2009/10’da hem de 2010/11’de en yüksek tane verimi, K-kullanım etkinliği ve K’dan yararlanma etkinliği 50 ve 75 kg/ha K dozlarından, en yüksek K-alım etkinliği 25 kg/ha K dozunda tespit edilmiştir. Çeşit x K dozu interaksiyonunun buğdayın tane verimi, K-kullanım etkinliği, K-alım etkinliği ve K’ dan yararlanma etkinliği üzerine etkisi her iki yılda da istatistiksel olarak (p<0.05 ve p<0.01) önemli olmuştur. Çeşit ve K dozu interaksiyonunda, en yüksek tane verimi (2009/10’ da 3347 kg/ha ve 2010/11’ de 3509 kg/ha) ve en yüksek Kkullanım etkinliği (2009/10’ da %33.4 ve 2010/11’ de %35.1) 50 kg/ha K dozu x Altay-2000 interaksiyonunda belirlenmiştir. En yüksek K-alım etkinliği 2009/10 da 25 kg/ha K dozunda Sultan-91 çeşidinde (%76.2), 2010/11 de aynı K dozunda Gün-91 çeşidinden (%71.1) elde edilmiştir. En yüksek K’dan yararlanma etkinliği her iki yılda da 75 kg/ha K dozu x Sultan çeşidi interaksiyonunda (sırasıyla, %105.3 ve %107.5) tespit edilmiştir.
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