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Browsing by BUU Author "Açıkgöz, Esvet"

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    Dry matter accumulation and forage quality characteristics of different soybean genotypes
    (TÜBİTAK, 2012-07-15) Wietgrefe, Gary; Sürmen, Mustafa; Çeçen, Semiha; Yavuz, Tamer; Erdurmuş, Cengiz; Göksöy, Abdurrahim Tanju; Açıkgöz, Esvet; Sıncık, Mehmet; Uludağ Üniversitesi/Ziraat Fakültesi/Tarla Bitkileri Bölümü.; 6602817346; 23989507900
    Three different soybean [Glycine max (L.) Merr.] cultivars (A-3127, Derry, and Yemsoy) were evaluated for dry matter (DM) yield, plant components, and crop growth rate (CGR) at different row spacings and harvesting stages in 3 locations with Mediterranean-type climate in a split-split plot design with 3 replications in 2009 and 2010. In addition, crude protein (CP), crude protein yield (CPY), acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN), and relative feed value (RFV) of harvested forage soybeans were determined at the Bursa (Turkey) location. Increased row spacings significantly reduced DM yield at all locations. Combined over other main effects, the 25-cm row spacing produced 35% more DM yield than the 75-cm row spacing. Row spacings greatly affected DM yield at the R5 and particularly the R7 stage, but this effect was minimal at the RI stage. The forage-type cultivar Derry produced significantly higher DM yield in all locations, particularly at the R5 and R7 stages. The constituent components of DM were similar at different row spacings of soybean cultivars. In general, the CGR decreased from 25-cm row spacing to 75-cm row spacing in all locations, and the CGR of the cultivars varied significantly according to harvest period, row spacing, and location. Derry had a significantly higher CGR than the other cultivars in the Antalya and Bursa locations. Quality characteristics of soybean forage were not 'significantly affected by row spacing and showed little effect by cultivar. Harvest stage significantly affected CP, ADF, NDF, TDN, and RFV concentrations of soybean forage. It was concluded that in Mediterranean environments forage-type soybeans (i.e. Derry) can be seeded in narrow rows (25 cm) at high plant population (100 kg ha(-1)) and offer the most DM yield when harvested at later R stages (e.g., R7) rather than at the early reproductive stage.
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    Effects of different seeding rates on forage yield and quality components in pea
    (Ege Üniversitesi Ziraat Fakültesi, 2017) Uzun, Ayşen; Aşık, Barış Bülent; Açıkgöz, Esvet; Uludağ Üniversitesi/Ziraat Fakültesi/Tarla Bitkileri Bölümü.; Uludağ Üniversitesi/Ziraat Fakültesi/Toprak Bilimi ve Bitki Besleme Bölümü.; AAG-7431-2021; 13004441000; 35217629600; 6602817346
    The aim of this study was to investigate the effects of seeding rate on yield and quality components in forage pea cultivars. Four pea cultivars (Ulubatli, Kirazli, Golyazi and Urunlu) and five seeding rates (75, 100, 125, 150 and 175 viable seeds m(-2)) were used in this study. Field experiments were carried out from 2009 to 2011 during the winter growth period at Uludag University, Faculty of Agriculture, Agricultural Research and Application Center in Bursa province, Turkey. The experimental design was a randomized complete block desing with three replications. Dry matter yield, crude protein ratio and yield, acid detergent fiber, neutral detergent fiber, total digestible nutrients and relative feed values were determined. Significant differences were found among the pea cultivars and seeding rates in all measured characteristics in both years. The highest dry matter yield was obtained from the Kirazli cultivar at 125 seed m(-2). The digestibility of the Golyazi cultivar was higher than the other cultivars. On the other hand, the digestibility of the forage decreased as the seeding rate increased.
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    Effects of slow-release fertilizers on turf quality in a turf mixture
    (Ege Üniversitesi Ziraat Fakültesi, 2011) Bilgili, Uǧur; Açıkgöz, Esvet; Uludağ Üniversitesi/Ziraat Fakültesi/Tarla Bitkileri Bölümü.; AAH-1539-2021; 6506803244; 6602817346
    A 2-year field study was conducted to determine the influence of the timing of application and different slow release nitrogen (N) sources with different nitrogen rates on the growth and quality of a turfgrass mixture. Three different timings were used for nitrogen application: annually, once every 3 months, and once every 6 months. Three nitrogen sources (ammonium nitrate and two slow-release fertilizers, Entec and Osmocote) were used in the trial. Annually applications were carried out at rates of 0 (control) g m(-2), 30 g m(-2), 60 g m(-2), 90 g m(-2). Results of this study showed that both slow-release fertilizers had significantly higher ratings of color and quality and significantly higher clipping yields compared with the control (ammonium nitrate) during the fall and winter seasons. During the other seasons, the slow-release fertilizers produced equal, slightly higher or slightly lower color and quality ratings and clipping yields, compared with the control. It should be noted that an acceptable color rating and turf quality were obtained in the fall and winter seasons with 60 and 90 g N m(-2) yr(-1) of slow release fertilizers.
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    Forage yield and lodging traits in peas (Pisum sativum L.) with different leaf types
    (Ege Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü, 2010) Aydınoğlu, Bilal; Çakmakçı, Sadık; Geren, Hakan; Avcıoğlu, Rıza; Nizam, İlker; Tekeli, Ali Servet; Gül, İsmail; Anlarsal, Emin; Yücel, Celal; Avcı, Mustafa; Acar, Zeki; Ayan, İlknur; Üstün, Ali; Bilgili, Uğur; Uzun, Ayşen; Sincik, Mehmet; Yavuz, Mine; Açıkgöz, Esvet; Uludağ Üniversitesi/Ziraat Fakültesi/Tarla Bitkileri Bölümü.; AAH-1811-2021; AAH-1539-2021; AAG-7431-2021; 6506803244; 13004441000; 23989507900; 26532114800; 6602817346
    Two semi-leafless and four leafed pea (Pisum sativum L.) genotypes were evaluated for plant height, lodging scores, and forage yield in eight diverse locations with typical Mediterranean or Mediterranean-type climate in the 2001-2002 and 2002-2003 growing seasons. The genotypes used in this study were forage type with indeterminate growing habit. Significant differences among pea genotypes were found for all traits over years and locations. All interactions which related to G x E interaction showed significance (P>0.01) for all traits. The forage yield of the pea genotypes averaged 26605 kg ha(-1) and the highest yield was obtained from the leafed genotype Urunlu. Its forage yield reached to 35970 kg ha(-1) yield level at Samsun location.
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    Türkiye’de yeni bir çim zararlısı, Dorcadion pseudopreissi (Coleoptera: Cerambycidae), biyo-ekolojisi, popüasyon dalgalanması ve farklı çim türlerindeki zararı
    (Türk Entomoloji Derneği, 2012) Kumral, Nabi Alper; Bilgili, Uğur; Açıkgöz, Esvet; Uludaǧ Üniversitesi/Ziraat Fakültesi.; 0000-0001-9442-483X; A-1388-2019; AAH-1539-2021; 15846048400; 6506803244; 6602817346
    Bursa ilinde son on yılda çim bitkilerinin köklerinde beslenen Dorcadion pseudopreissi Breuning (Col.: Cerambycidae) larvalarının popülasyon yoğunlukları, böceğin gelişmesi için uygun çim alanların, futbol sahalarının vb. yeni çim alanların çoğalmasıyla oldukça artmıştır ve bir çok çim alanında ekonomik düzeyde zararlar meydana getirmiştir. Sonuçta, bu böcek Bursa ilinin çim alanlarında ana zararlı durumuna gelmiştir. Bu çalışmada 2007 ve 2008 yıllarında D. pseudopreissi’nin doğal koşullarda Lolium perenne L. üzerindeki biyo-ekolojisi ve L. perenne ve diğer Poaceae türlerinden Poa pratensis L., Festuca rubra L., F. arundinacea Schreb ve Agrostis stolonifera L.’deki zarar düzeyleri araştırılmıştır. Ayrıca, ergin popülasyon dalgalanması üç yıl boyunca (2008-2010) izlenmiştir. Araştırma sonuçlarına göre, iklim koşullarına bağlı olarak topraktan ergin çıkışı mart ayı ortası veya sonunda meydana gelmiş olup, çiftleşme ve yumurta koyma dönemi mayıs ayı ortası veya sonuna kadar 1-1.5 ay kadar sürmüştür. Larvalar haziran ayı başında çıkış yapmış ve temmuz ayı sonu veya ağustos ayı başına kadar çim bitkilerinin kökleriyle beslenmiştir. Zarar düzeyi ile ilgili çalışmalarda F. arundinacea her iki yılda en az zarar gören çim türü olmuştur. L. perenne, P. pratensis ve F. rubra ise hem istatistikî hem de göreceli olarak en fazla zarara uğrayan türler olmuştur. F. arundinace’de çok az oranda larva zararı saptanmasına rağmen, yine istatistiki ve sayısal olarak en fazla larva bu türde saptanmıştır. Bu da bu çim türünün böceğe karşı oldukça toleranslı olduğunu göstermiştir. Diğer taraftan, A. stolonifera’de erken dönemde zarar belirlenmesine rağmen toprak altında her iki yılda larva bulunamaması bu çim türünün de D. pseudopreissi larvaları için uygun bir konukçu olmadığını göstermiştir.