GirişM ısır, insan ve hayvan beslenmesinde kullanımının yanı sıra, son yıllarda endüstriyel kullanım alanları oldukça genişleyen bir sıcak iklim tahılı olup, tahıllar içerisinde en yüksek verime sahip olması, güneş enerjisini en etkin şekilde kullanabilmesi (C4 bitkisi) ve birim alandan en fazla kuru madde üretmesi nedenleriyle, bir milyar tonun üzerinde üretimle, ÖzBu çalışma, bazı tek melez çeşit adaylarının silajlık verim ve kalite özelliklerinin belirlenmesi amacıyla; 2013 ve 2014 yıllarında tesadüf blokları deneme desenine göre üç tekerrürlü olarak yürütülmüştür. Denemenin ilk yılında 19 çeşit adayı dört standart, ikinci yılında birinci yıldan ümitvar olarak seçilen 9 çeşit adayı dört standart kullanılmıştır. Denemenin ilk yılında yaş ot verimleri 3512-6128 kg da -1 ikinci yılında 3241-7164 kg da -1 arasında, kuru ot verimleri birinci yıl 1460-2528 kg da -1, ikinci yıl 1083-2607 kg da -1 arasında değişim göstermiştir. Deneme de kullanılan çeşit ve çeşit adaylarının kalite özelliklerindeki değişim aralıkları, ağırlık esasına göre; ADF (%), NDF (%) ve ham protein oranı (%), sırasıyla, birinci yıl ortalama %32.5, %51.6 ve %6.08 ikinci yıl %30.2, %52.0 ve %6.08 olarak ölçülmüştür. Kuru madde içerisinde mineral madde içeriği, ağırlık esasına göre değişim Ca, K, Mg ve P oranları (%) her iki yılda benzer sonuçlar elde edilmiştir. Deneme sonucunda standartların ortalamasını geçen üç çeşit adayı (SASA-40, TTM2012-11 ve TTM2012-21), çoklu lokasyonlarda denenmek üzere Ülkesel Silajlık mısır ıslah denemelerine gönderilmiştir. Ayrıca, her iki yılda yaş ot, kuru ot ve kalite yönünden öne çıkan SASA-40 çeşit adayı tescile sunulmuştur.Anahtar Kelimeler: Mısır, silaj, verim, kalite, mineral madde Determination of the Yield and Quality Characteristics of Promising Silage Hybrid Maize Varieties Obtained From Inbred Lines AbstractThis research was carried out with 19 candidate species and 4 standard varieties in 2013, and 9 candidates and 4 standards in 2014 in order to determine silage yield and quality characteristics of some single hybrid candidates, and it was performed according to randomized block design techniques. The green biomass yield was ranged between 3512 and 6128 kg da . The quality characteristics of variety candidates and varieties used in the experiment were determined by weight basis, ADF (%), NDF (%) and crude protein ratio (%). Following results were recorded respectively: in first year 32.5%, 51.6% and 6.08% and in the second year 30.2%, 52.0% and 6.08%. Similar results were obtained for the content of mineral matter in dry matter (% change by weight basis) Ca, K, Mg and P ratio in both years. As a result of the experiment, 3 types of candidates (SASA-40, TTM2012-11 and TTM2012-21) were found over the average regarding the standards, and sent to the National Silage corn breeding project to be tested in multiple locations. SASA-40 was prominent regarding it is green and dry herb yield and registered as a cultivar.
Aim of this study is determine to fresh ear yield and quality characters of sweet corn varieties which Vega, Challenger, Sentinel, HYRIX 39, and HYRIX 53 in two location in Turkey. The research was conducted on randomised blocks design with four replication in Bafra and Tekkekoy location. The experiment was caried out evaluate the yield and quality performance of some sweet corn genotypes as well as demonstrate unfamiliar supersweet corn concept in Turkey. In the research were obserwed some yield component and quality characters such as flowering time, plant length, first cob length, grain yield, cob diameter, cob length, number of rows in the cob, amount of grains in row, number of marketable cobs per plant, wet cob harvest time, wet cob yield, grain cob ratio, grain moisture, dry grain yield. It was found that sweet corn genotype are significantly different in terms of yield and quality characteristics. The highest wet cob yield was 24.238 t ha-1 in Hybrix 39 super sweet. Super sweet corn has an important potential in sweet corn cultivation due to high yield of dry grains and its high maintenance rate of sugar raito in the long term after harvesting. Statistical analysis showed that the effect of genotype and the environment, as well as their interactions, had a significant impact on the yield of sweet corn hybrids. The presented results have demonstrated the poerformance of some sweet corn in Turkey. This work is intended to inspire similar studies using other sweet corn varieties and also to encourage the wide-scale production sweet corn in Turkey.
Purpose -Exchange rate volatility, which is defined as continuous fluctuations in exchange rates, has been frequently discussed in the literature recently due to its effects on developing economies. Exchange rate volatility is costly to the domestic economy through its direct and indirect effects on households and firms. Turkey implied different exchange rate regimes between 1980 and 2019. Also the use of exchange rate as a policy tool for fighting against inflation or current account deficit has increased exchange rate volatility in Turkey. The review of literature on the impact of exchange rate volatility on economic growth provides mixed results. The impact differs from developed to developing countries. The purpose of this study is to examine the impact of exchange rate volatility on economic growth in Turkey between 1998:Q1 and 2019:Q3. Methodology -This paper uses an Autoregressive Distributed Lag (ARDL) Model to analyze the effect of exchange rate volatility on economic growth in Turkey. Volatility of exchange rate is calculated from the real effective exchange rate by using the GARCH (1,1) model. ARDL model and the bounds testing approach has some advantages over other conventional cointegration approaches. Lagrange Multiplier (LM) test for autocorrelation and Ramsey RESET test for specification error were applied. One last diagnostic test of CUSUM and CUSUMSQ are used to check the stability of the short run and long run coefficient estimates. Findings-Estimation results of ARDL model show that real effective exchange rate volatility has a negative and highly statistically significant effect on economic growth in Turkey. From the long run coefficients export and investment have a significant positive effect on real GDP, import and exchange rate volatility have significant negative effect on real GDP. Conclusion-In order to ensure sustainable economic growth, it is necessary to strengthen the fiscal and financial structure and reduce the volatility in exchange rates. Financial deepening and fiscal discipline are very important in this respect. Changing the production structure and investing in education and high technology, increasing the domestic production of intermediate goods are also required for achieving high growth rates.
Petrol fiyatlarındaki dalgalanmaların önemli ekonomik sonuçları olduğundan akademisyenler ve politika yapıcılar tarafından sıkça araştırılan konuların başında gelmektedir. Petrol fiyatlarındaki artışlar petrol ihraç eden ülkeler için iyi olsa da, Türkiye gibi Petrol yoksunu ve enerji ihtiyacının büyük bölümünü petrol ithal ederek karşılayan ülkeler için kötüdür. Bu alandaki kapsamlı araştırmalar, küresel ham petrol fiyatlarının yerel enflasyon üzerindeki etkisinin çok net olmadığını göstermektedir. Bu çalışmada Genişletilmiş Phillips eğrisi yaklaşımına dayanarak, doğrusal ve doğrusal olmayan ARDL yöntemleriyle dünya petrol fiyatlarındaki değişimlerin Türkiye'de tüketici ve üretici fiyatları üzerindeki asimetrik etkisi incelenmektedir. Elde edilen sonuçlara göre petrol fiyatlarındaki dalgalanmaların tüketici ve üretici fiyatları üzerindeki etkisi uzun dönemde asimetrikken, kısa dönemde ise simetriktir. Dünya petrol fiyatlarındaki %100'lük bir artış sonucunda yurtiçi tüketici fiyat endeksi (CPI) %13,05 üretici fiyat endeksi (PPI) %14,7 artarken, petrol fiyatlarındaki %100'lük bir azalış tüketici fiyat endeksini %11,27, üretici fiyat endeksini %7,24 azaltmaktadır.
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