Browsing by Author "Oguz, Faruk"

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The Effect of Bacillus Sp Osu-142 Inoculation at Various Levels of Nitrogen Fertilization on Growth, Tuber Distribution and Yield of Potato (Solanum Tuberosum L.)
(Academic Journals, 2009) Ekin, Zehra; Oguz, Faruk; Erman, Murat; Ogun, Erdal
The objective of this study was to evaluate the yield response of potato to inoculation with Bacillus sp. OSU-142 at three levels of N fertilization (0, 120, and 240 kg ha(-1)) under field conditions in Ahlat District of Eastern Anatolia Region of Turkey in 2006 and 2007. Tuber inoculation with Bacillus sp. OSU-142 significantly affected yield and yield components in both years. Tuber yields and yield components were higher at all levels of nitrogen fertilizer in the inoculated plots as compared to the control. However, beneficial effect of Bacillus sp. OSU-142 on tuber yield was noted at 120 kg N ha-1, possibly indicating either more effective of inoculation in the low-N input agriculture or an interaction of Bacillus sp. OSU-142 with higher yielding seasonal conditions. In general, more response to inoculation was observed in the absence of major crop growth limitations, suggesting the complementary contribution of the Bacillus sp. OSU-142 treatment to more efficiently developing higher yielding potato.
Effects of Rhizobium, Arbuscular Mycorrhiza and Whey Applications on Some Properties in Chickpea (Cicer Arietinum L.) Under Irrigated and Rainfed Conditions 1-Yield, Yield Components, Nodulation and Amf Colonization
(Elsevier Science Bv, 2011) Erman, Murat; Demir, Semra; Ocak, Elvan; Tufenkci, Sefik; Oguz, Faruk; Akkopru, Ahmet
The study aimed to determine the effect of whey application, the inoculation of Glomus intraradices Shench&Shimith and Mesorhizobium ciceri on root colonization, nodulation, yield and the components of yield in chickpea (Cicer arietinum L cv. Aziziye-94) under rain-fed and irrigation management. Experiments were carried out in a split plot design with four replications in 2003 and 2004. The above-mentioned factors were all applied to plants in single, double and triple combinations. The effect of irrigation was significant, with the heaviest yields being obtained under this treatment. Arbuscular mycorrhizal fungus (AMF) inoculation, alone or in combination with other treatments, was very effective under rain-fed conditions, resulting in large increases in yield, root colonization and phosphorus content of the seed and shoot. On the other hand, rhizobial inoculation increased significantly all traits examined, particularly root nodulation and the nitrogen content of seeds and shoots under irrigated conditions. Whey combined with AMF significantly increased root colonization while its combination with Rhizobium increased the number of nodules. Combinations of two or three treatments were more effective than individual applications. The greatest yield, root colonization and nodulation were obtained from the combination of all three treatments under irrigation. (C) 2011 Elsevier B.V. All rights reserved.