20 research outputs found
Agriculture and Nanoparticles
No full textHerbal, animal and agricultural activities that have been applied to meet human needs in harmony with nature throughout human history have not harmed the ecosystem and have not caused environmental problems. However, the current ecosystem balance continues to deteriorate as a result of classical agricultural practices to get more products from the unit area to meet the food needs of the rapidly growing population. Therefore, new approaches to agricultural production and techniques such as nanotechnology are needed. In this context, nanoparticles that form the basis of nanotechnology have emerged as a versatile platform for solving the problems encountered. Nanoparticles have the potential in agricultural applications to be used in plant nutrition, plant and animal breeding and in the fight against herbicides and harmful insects. © Springer Nature Singapore Pte Ltd. 2020
Effect of Ethyl Methanesulphonate (EMS) Applications on In Vitro Growth of Sunflower (Helianthus annuus L. cv. Palancı-I) under Salinity Conditions
No full textBu çalışmada, Palancı-I ayçiçeği çeşidi tohumlarına ait çekirdek içlerine dört farklı dozda (kontrol, % 1.0, 1.5 ve 2.0) etil metansülfonat (EMS) uygulanmış ve çekirdek içleri farklı NaCl dozu (0.0, 1.25, 2.5 ve 5.0 g/L) içeren besi ortamlarında 4 hafta süreyle in vitro koşullarda kültüre alınmıştır. Elde edilen bitkiciklerin boyu (cm), yaş ağırlığı (g), kök uzunluğu (cm), yaprak sayısı (adet), yaprak eni ve boyu (mm), boğum sayısı (adet), toplam klorofil içeriği (µg/g) ve prolin içeriği (Mmol/g YA) incelenmiştir. Boğum sayısı ve yaprak sayısı hariç incelenen tüm özelliklerde artan tuz dozları ve EMS uygulamalarının etkisi istatistiki olarak önemli bulunmuştur. Genel olarak, artan NaCl konsantrasyonlarına bağlı olarak prolin içeriği hariç, diğer incelenen özelliklerde azalma gözlenmiştir. Yine uygulanan yüksek EMS dozları toplam klorofil içeriği hariç incelenen diğer özelliklerde önemli seviyede düşüşlere sebep olmuş ancak prolin içeriğini etkilememiştir. Sonuç olarak, EMS uygulamaları artan NaCl dozlarının olumsuz etkilerini azaltmıştır.Four ethyl methanesulphonate (EMS) doses (control, 1.0, 1.5 ve 2.0 %) were exposed to kernels of Palancı-I sunflower variety and this kernels were cultured on MS medium added different 4 NaCl doses (0.0, 1.25, 2.5 ve 5.0 g/L) in in vitro for 4 weeks. In this study, plantlet height (cm), plantlet fresh weight (g), root length (cm), leaf number (number), leaf width and length (mm), node number (number), total chlorophyll content (µg/g) and proline content (Mmol/g FW) were investigated. Except for node number and leaf number the effects of EMS applications and salinity levels significantlly affected to all characteristics. Generally, according to increasing NaCl concentrations, other characters decreased except proline content. The higher EMS doses caused significantly declines in investigated characters except total chlorophyll content but weren’t affect proline content. It was concluded that EMS treatments decreased negative effects of increasing NaCl doses
Allelopathic Effect of Sage and Turkish Oregano Volatile Oils on In Vitro in Sainfoin (Onobrychis viciifolia)
No full textSainfoin has little atention for plant tissue culture studies. However, genetic engineering applications of gene transfer can be done today. Therefore, first different methods are used in tissue culture (For example, using of different hormones for plant growing) and be given importance. In this study, the effect of different concentration (0-5-10-20-30 ppm) sage (Salvia officinalis L.) and Turkish oregano (Origanum onites L.) have profound effects on morphology of the tissues that grow from the initial sainfoin explant. The study was arranged in factorials with 6 replications and of variance was done using statistical analysis system (SAS) software. The data collected included the rate of seed germination, plant length, root number and root length. The highest seed germination, plant length and root length was obtained on sage volatile oil. Used both volatile oil reduced the germination ratio. Sage increased the plant and root length. Even so, Turkish orego significantly reduced plant length and is root number increased. © 2013 Copyright Har Krishan Bhalla & Sons
(Salvia officinalis) oils
No full textSage is perennial plant included in the Salvia officinalis species, which belongs to the Labiatea family. It is also known as common sage and garden sage. Medical and culinary use of this medicinal herb dates back to ancient times. The most important components of S. officinalis, which is commonly grown in many Mediterranean countries, are phenolic components. Sage has antimicrobial, antioxidant, antiviral, and immunosuppressive effects, so its medical and aromatic usage is important. In addition to this, sage is used traditionally for different purposes, such as the preservation of natural and processed food, as a sweetener, or for food coloring. © 2016 by Elsevier, Inc.. All rights reserved
Molecular Characterization of Triticale Genotypes (X Triticosecale Wittmack) Based on ISSR-PCR
No full textBu çalışmada, ülkemizde yaygın olarak üretimi yapılan dört tritikale çeşidi ve dört tritikale hattı arasındaki genetik uzaklık basit (sekans) baz dizilimi arası tekrarlamalar (ISSR) metodu ile incelenerek; kullanılan 16 primerden 14'nün polimorfik bant verdiği görülmüştür. Çalışmada kullanılan genotiplerdeki ortalama polimorfizm oranı ise % 42.27 olarak belirlenmiş; ayrıca, toplamda 97 bant ve 41 adet polimorfik bant elde edilmiştir. Polimorfik primer başına elde edilen ortalama bant sayısı 6.9 ve polimorfik bant sayısının 2.9 olarak saptandığı, bu araştırmada kullanılan tritikale genotipleri arasındaki benzerlik oranlarının % 44-89 arasında olduğu ortaya konulmuştur. Aritmetik ortalamayı kullanan ağırlıksız çift grup metodu (UPGMA) analizi sonucunda birbirine genetik benzerlik bakımdan en uzak olan çeşitler Tacettinbey ile Tatlıcak 97, en yakınlar ise SDÜ-43 ve Tacettinbey olarak bulunmuştur. Öte yandan, gösterdikleri genetik varyasyon bakımından Karma 2000, Tacettinbey çeşidi ile SDÜ-43 hattı aynı gruba girmişlerdir. Bu çalışma ile Türkiye'de tescili edilmiş tritikale çeşitleri arasında belirgin ve amaca uygun bir genetik varyasyonun bulunduğu ortaya konularak, çeşit adayı olabilecek potansiyele sahip hatların ıslahında, uygun metotların seçilmesi ve bu bakımdan genotipik benzerlik/farklılıkların saptanmasında ISSR-PCR yönteminin oldukça güvenilir ve yararlı bir teknik olduğu anlaşılmıştırIn this study, genetic distance among 4 triticale cultivars cultivated in our country and 4 triticale lines was examined using the inter simple sequence repeat (ISSR-PCR) method and the 14 of used 16 primers gave polymorphic bands. The average polymorphism rate in the genotypes used in the study was determined as 42.27 %; in addition, in total, 97 bands and 41 polymorphic bands were obtained. Research results showed that the average number of bands per polymorphic primer and the number of polymorphic bands was 6.9 and 2.9, respectively and the similarity ratios between the genotypes used in this study were found to be between 44-89 %. According to the unweighted pair group method with arithmetic mean (UPGMA) analysis results, in terms of genetic similarity, Tacettinbey and Tatlıcak 97 varieties were the most distant, but SDÜ-43 and Tacettinbey varieties were the closest among the genotypes. On the other hand, In terms of genetic variation, Karma 2000, Tacettinbey variety and SDÜ-43 line placed in the same group. In this study, establishing to be in attendance of a genetic variation evident and accord with the aim among triticale varieties registered in Turkey, it was understood that ISSR-PCR method was quite reliable and a beneficial technic in selecting of the appropriate methods and from this viewpoint in determining of genotypic the similarity / diversity in the breeding of the line to be the candidate variet
Bazı Tritikale Genotiplerinde Tane Verimi ve Stabilite Analizi
No full textBu çalışmada, Isparta koşullarında 20 farklı tritikale genotipinin tane verimi yönünden yıllara göre stabilitesinin belirlenmesi amaçlanmıştır. Araştırma tesadüf blokları deneme deseninde 3 tekerrürlü olarak 2005-2006-2007 yılları arasında yürütülmüştür. Stabilite parametreleri olarak genotiplerin ortalama değerleri, regresyon katsayısı (b), regresyondan sapma (S2d), belirleme katsayısı (r2), varyasyon katsayısı (VK) ve regresyon sabitesi (a) kullanılmıştır. Denemede ele alınan genotiplerin tane verimleri 190.54-338.53 kg/da arasında değişmiştir. Araştırma sonucunda ortalama verimi yüksek, regresyon katsayısı (b) 1’e yakın, varyasyon katsayısı (VK) değeri düşük ve tüm çevrelere adaptasyon sağlayabilecek 27 ve 29 numaralı genotipler ile uygun koşullar sağlandığında 28 nolu hattın çeşit tescili için aday olabileceği belirlenmiştir
Molecular Characterization of Triticale Genotypes (X Triticosecale Wittmack) Based on ISSR-PCR
No full textWOS: 000453166600003In this study, genetic distance among 4 triticale cultivars cultivated in our country and 4 triticale lines was examined using the inter simple sequence repeat (ISSR-PCR) method and the 14 of used 16 primers gave polymorphic bands. The average polymorphism rate in the genotypes used in the study was determined as 42.27 %; in addition, in total, 97 bands and 41 polymorphic bands were obtained. Research results showed that the average number of bands per polymorphic primer and the number of polymorphic bands was 6.9 and 2.9, respectively and the similarity ratios between the genotypes used in this study were found to be between 44-89 %. According to the unweighted pair group method with arithmetic mean (UPGMA) analysis results, in terms of genetic similarity, Tacettinbey and Tatlicak 97 varieties were the most distant, but SDU-43 and Tacettinbey varieties were the closest among the genotypes. On the other hand, In terms of genetic variation, Karma 2000, Tacettinbey variety and SDU-43 line placed in the same group. In this study, establishing to be in attendance of a genetic variation evident and accord with the aim among triticale varieties registered in Turkey, it was understood that ISSR-PCR method was quite reliable and a beneficial technic in selecting of the appropriate methods and from this viewpoint in determining of genotypic the similarity / diversity in the breeding of the line to be the candidate variety
Plant volatile compounds in growth
No full textPlants synthesise volatile organic compounds (VOCs) in various tissues against stresses regarding herbivores, plant viruses, pathogens, temperature, humidity, light ozone, food usability, etc., and for physiologic processes such as plant development, seed formation and germination, pollination and fruit ripening. These compounds are synthesised in all parts of plants, especially flowers, fruits, roots, xylems and cells, and just as they may be effective in the tissues they are produced, they may be transferred to other parts of the plants and show their effect there. Plants communicate with living things around them by emitting numerous different volatile compounds. They develop morphological and physiological defence mechanisms by repulsing or attracting their enemies with these compounds. Plants store these compounds produced for defence and release them in the form of volatile gases when needed. Plant volatile compounds include isoprene, terpene, fatty acid derivatives, alcohols, esters, volatile oils, plant development regulators (abscisic acid, auxin, cytokinin, etc.), phenolic compounds and secondary metabolites. © Springer Nature Singapore Pte Ltd. 2017. All rights reserved
The origin of negative capacitance in Au/n-GaAs Schottky barrier diodes (SBDs) prepared by photolithography technique in the wide frequency range
No full textCapacitance-voltage (C-V) and conductance-voltage (G/ω-V) measurements of the Au/n-GaAs Schottky barrier diodes (SBDs) in the wide frequency range of 10 kHz-10 MHz at room temperature were carried out in order to evaluate the reason of negative capacitance (NC). Experimental results show that C and G/ω are strong functions of frequency and bias voltage especially in the accumulation region. NC behavior was observed in the C-V plot for each frequency and the magnitude of absolute value of C increases with decreasing frequency in the forward bias region. Contrary to C, G/ω increases with decreasing frequency positively in this region. NC behavior may be explained by considering the loss of interface charges at occupied states below Fermi level due to impact ionization processes. Such behavior of the C and G/ω values can also be attributed to the increase in the polarization especially at low frequencies and the introduction of more carriers in the structure. The values of Rs decrease exponentially with increasing frequency according to literature. In addition, the values of C and G/ω at 1 MHz were corrected to obtain the real diode capacitance by taking the effect of Rs into account. © 2013 Elsevier B.V. All rights reserved
Isparta ekolojik koşullarında ekmeklik ve makarnalık bazı buğday çeşitlerinin uygun ekim zamanlarının belirlenmesi
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