Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Agriculture

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 4171 - 4200 of 7717

Full-Text Articles in Entire DC Network

Effect Of Wheat Cultivars, Fertilizers, And Fungicides On Fusarium Foot Rot Disease Of Wheat, Davut Soner Akgül, Ali̇ Erkiliç Jan 2016

Effect Of Wheat Cultivars, Fertilizers, And Fungicides On Fusarium Foot Rot Disease Of Wheat, Davut Soner Akgül, Ali̇ Erkiliç

Turkish Journal of Agriculture and Forestry

Fusarium culmorum is a principal causal agent of root, crown, and foot rot disease in the wheat-growing areas of Turkey. The effects of different fertilization practices, fungicide sprays, and cultivar reactions of 12 wheat varieties were investigated for disease development in greenhouse conditions in 2006-2007. The fertilizers used in the experiments significantly reduced disease by 27.5%-54.7% compared to the nonfertilized control. The plants fertilized with calcium ammonium nitrate (26% N) or composite NPK (15%, 15%, 15%) showed fewer disease symptoms than those fertilized with NPK (20%, 20%, 0%) in the presowing applications. On the other hand, foot rot severity was …

Go to article

Impacts Of Two Spatially And Temporally Isolated Anthropogenic Fire Eventson Soils Of Oak-Dominated Zagros Forests Of Iran, Javad Mirzaei Jan 2016

Impacts Of Two Spatially And Temporally Isolated Anthropogenic Fire Eventson Soils Of Oak-Dominated Zagros Forests Of Iran, Javad Mirzaei

Turkish Journal of Agriculture and Forestry

Anthropogenic fires have varying effects on the oak-dominated forests of the Zagros Mountains in western Iran. The objective of this project was to investigate the effects of fire on various components of soil. For this purpose three homogeneous and neighboring sites were inspected. Site A was the unburned control. Sites B and C experienced fires about 2 and 8 years prior to the study, respectively. In comparison to the control, site B showed a decline in organic matter content (1.69 ± 0.24 vs. 1.13 ± 0.17), N amount (0.40 ± 0.05 vs. 0.19 ± 0.03), litter depth (1.20 ± 0.214 …

Go to article

New Natural Weed Host Raphanus Raphanistrum L. (Brassicaceae) For Beet Necrotic Yellow Vein Virus And Its Vector Polymyxa Betae Keskin, Nazli Di̇de Kutluk Yilmaz, Emi̇ne Kaya Altop, Colin James Phillippo, Hüsrev Mennan Jan 2016

New Natural Weed Host Raphanus Raphanistrum L. (Brassicaceae) For Beet Necrotic Yellow Vein Virus And Its Vector Polymyxa Betae Keskin, Nazli Di̇de Kutluk Yilmaz, Emi̇ne Kaya Altop, Colin James Phillippo, Hüsrev Mennan

Turkish Journal of Agriculture and Forestry

Rhizomania is an important virus disease of sugar beet (Beta vulgaris) caused by Beet necrotic yellow vein virus (BNYVV). The virus is transmitted to the roots of host plants by the plasmodiophorid Polymyxa betae. During survey studies in September and October 2009, yellow vein banding symptoms were observed on wild radish (Raphanus raphanistrum) plants growing in spinach (Spinacia oleracea) fields with a history of rhizomania in Samsun Province in the Black Sea Region of Turkey. To verify possible alternative hosts for BNYVV and P. Betae, R. Raphanistrum and spinach plants and soil samples were collected. BNYVV was detected in the …

Go to article

Foliar Spray Of Selected Plant Growth Regulators Affected The Biochemical And Antioxidant Attributes Of Spinach In A Field Experiment, Maryam Aslam, Bushra Sultana, Farooq Anwar, Hassan Munir Jan 2016

Foliar Spray Of Selected Plant Growth Regulators Affected The Biochemical And Antioxidant Attributes Of Spinach In A Field Experiment, Maryam Aslam, Bushra Sultana, Farooq Anwar, Hassan Munir

Turkish Journal of Agriculture and Forestry

This study explored the effects of foliar spray of selected plant growth regulators (PGRs) on the biochemical and phenolic antioxidant attributes of spinach (Spinacia oleracea) leaves. Following foliar spray at three growth stages (40, 50, and 60 days) with selected PGRs, namely humic acid (HA), Moringa oleifera leaf extract (MOLE), and 6-benzylamino purine (6-BAP), and their mixed form, the samples of spinach leaves were harvested. The analysis of foliar-treated leaves revealed the content of proline, malondialdehyde (MDA), total soluble proteins (TSPs), total chlorophyll, and total carotenoids to be 22.45-72.32 μg/g FW, 2.41-29.13 ng/g FW, 3.21-22.45 μg/g FW, 4.173-19.700 mg/g FW, …

Go to article

Fatty Acid Composition, Oxidative Stability, And Antioxidant Properties Of Some Hungarian And Other Persian Walnut Cultivars, Geza Bujdoso, Éva Kónya, Mária Berki, Magdolna Nagy-Gasztonyi, Krisztina Bartha-Szügyi, Balázs Marton, Ferenc Izsépi, Nóra Adányi Jan 2016

Fatty Acid Composition, Oxidative Stability, And Antioxidant Properties Of Some Hungarian And Other Persian Walnut Cultivars, Geza Bujdoso, Éva Kónya, Mária Berki, Magdolna Nagy-Gasztonyi, Krisztina Bartha-Szügyi, Balázs Marton, Ferenc Izsépi, Nóra Adányi

Turkish Journal of Agriculture and Forestry

Ten different Persian walnut cultivars were examined for their compositional data, including eight Hungarian and two introduced varieties. Oil content and fatty acid composition were determined, as well as oxidative stability (indicated by induction time). Antioxidative capacity, total polyphenol measurements, and individual phenolic compounds were also determined. Not only dry samples but fresh and stored samples were included in this study. Large differences were found among the varieties within these parameters, for example in oxidative stability, which contributes to antioxidative capacity. In conclusion, the nutritional value of Hungarian walnut cultivars was the same or even higher than those of foreign …

Go to article

Characterization Of Some Bioactive Compounds And Physicochemical Propertiesof Grape Varieties Grown In Turkey: Thermal Degradation Kinetics Of Anthocyanin, Sali̇h Karasu, Mehmet Başlar, Safa Karaman, Mahmut Kiliçli, Ahmet Abdullah Us, Hasan Yaman, Osman Sağdiç Jan 2016

Characterization Of Some Bioactive Compounds And Physicochemical Propertiesof Grape Varieties Grown In Turkey: Thermal Degradation Kinetics Of Anthocyanin, Sali̇h Karasu, Mehmet Başlar, Safa Karaman, Mahmut Kiliçli, Ahmet Abdullah Us, Hasan Yaman, Osman Sağdiç

Turkish Journal of Agriculture and Forestry

In the present study, five different grapes varieties grown in Turkey were comprehensively characterized in terms of physicochemical properties, total bioactive content, antiradical activity, and volatile sugar compounds. Thermal degradation kinetics of anthocyanin in the selected grape varieties were also analyzed. All the bioactive compounds and antiradical activity varied depending on variety and grape part (skin, pulp, or seed). Higher amounts of total phenolics, total flavonoids, anthocyanin, and antiradical capacity were obtained from seeds. Fifty-nine volatile compounds were observed in the grape varieties. Terpenoid compounds were determined to be the predominant aroma compounds, of which limonene and citral had the …

Go to article

Determination Of Fatty Acids And Volatile Compounds In Fruits Of Rosehip(Rosa L.) Species By Hs-Spme/Gc-Ms And Im-Spme/Gc-Ms Techniques, Zehra Tuğba Murathan, Mozgan Zarifikhosroshahi, Nesi̇be Ebru Kafkas Jan 2016

Determination Of Fatty Acids And Volatile Compounds In Fruits Of Rosehip(Rosa L.) Species By Hs-Spme/Gc-Ms And Im-Spme/Gc-Ms Techniques, Zehra Tuğba Murathan, Mozgan Zarifikhosroshahi, Nesi̇be Ebru Kafkas

Turkish Journal of Agriculture and Forestry

In this study, we aimed to compare fatty acid and volatile compound compositions of four rosehip species, namely Rosa pimpinellifolia, R. Villosa, R. Canina, and R. Dumalis, by gas chromatography with flame ionization detector (GC/FID) and headspace and immersion solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME/GC-MS and Im-SPME/GC-MS) techniques. The total lipid contents in fruits of the rosehip species varied from 5.83% (R. Villosa) to 7.84% (R. Dumalis). A total of 21 fatty acids were detected and quantified. In all species, except R. Canina, polyunsaturated fatty acids (PUFAs) predominated over saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs). Palmitic acid …

Go to article

Band-Application Of Phosphorus With Farm Manure Improves Phosphorus Use Efficiency, Productivity, And Net Returns Of Wheat On Sandy Clay Loam Soil, Abdur Rehim, Mubshar Hussain, Sajjad Hussain, Sibgha Noreen, Hülya Doğan, Muhammad Zia-Ul-Haq, Shakeel Ahmad Jan 2016

Band-Application Of Phosphorus With Farm Manure Improves Phosphorus Use Efficiency, Productivity, And Net Returns Of Wheat On Sandy Clay Loam Soil, Abdur Rehim, Mubshar Hussain, Sajjad Hussain, Sibgha Noreen, Hülya Doğan, Muhammad Zia-Ul-Haq, Shakeel Ahmad

Turkish Journal of Agriculture and Forestry

Phosphorus use efficiency (PUE) is very low in alkaline calcareous soils; however, it can be improved by using suitable application methods along with farm manure (FM). The present field study was conducted to optimize phosphorus (P) levels and application methods in order to maximize wheat yield, PUE, and net returns on calcareous soils with and without FM application. Five P soil solution levels, i.e. 0.00, 0.05, 0.10, 0.20, and 0.30 mg P L-1, were maintained according to the Freundlich model through the application of 0, 36, 61, 104, and 142 kg P2O5 ha-1, respectively. The calculated P (0, 36, 61, …

Go to article

Bioactive And Antioxidant Characteristics Of Blackberry Cultivars From East Anatolia, Müttali̇p Gündoğdu, Tuncay Kan, İhsan Canan Jan 2016

Bioactive And Antioxidant Characteristics Of Blackberry Cultivars From East Anatolia, Müttali̇p Gündoğdu, Tuncay Kan, İhsan Canan

Turkish Journal of Agriculture and Forestry

Blackberry is commonly used both in the fresh and the processing market. In the present study antioxidant capacity, organic acids, phenolic compounds, vitamin C, and sugars content of blackberry cultivars grown in the east of Turkey were determined. Phenolic compounds, organic acids, vitamin C, and sugars were determined by HPLC. Antioxidant capacity was determined by spectrophotometric methods. The cultivar Cherokee had the highest antioxidant capacity (48.900 μmol TE g-1), and the cultivar Jumbo had the lowest antioxidant capacity (30.855 μmol TE g-1). It was determined that the chief phenolic compounds in blackberry cultivars were catechin (ranging from 111.599 to 438.970 …

Go to article

Needle Characteristics Of Lebanon Cedar (Cedrus Libani A.Rich.): Degradation Of Epicuticular Waxes And Decrease Of Photosynthetic Rates With Increasing Needle Age, Ayli̇n Güney, Reiner Zimmermann, Anna Krupp, Klaus Haas Jan 2016

Needle Characteristics Of Lebanon Cedar (Cedrus Libani A.Rich.): Degradation Of Epicuticular Waxes And Decrease Of Photosynthetic Rates With Increasing Needle Age, Ayli̇n Güney, Reiner Zimmermann, Anna Krupp, Klaus Haas

Turkish Journal of Agriculture and Forestry

The evergreen conifer Cedrus libani A.Rich. İs frost- and drought-tolerant and of economic and ecological importance. It has valuable timber and thus has promising potential for cultivation within and outside its natural distribution. Our aim was to determine the morphological and physiological characteristics of C. Libani needle leaves with respect to epicuticular waxes, photosynthetic assimilation rates, and needle age. The study was conducted in the Cedar Research Forest near Elmalı, Antalya (SW Turkey) at 1650 m a.s.l. An equation to calculate needle surface area from needle length was created (R2 = 0.96) for adult cedar needles. The form factor for …

Go to article

Influence Of Nacl-Salinity On Pb-Uptake Behavior And Growth Of River Red Gum Tree (Eucalyptus Camaldulensis Dehnh.), Muhammad Farrakh Nawaz, Sadaf Gul, Muhammad Ayyoub Tanvir, Javaid Akhtar, Samira Chaudary, Irfan Ahmad Jan 2016

Influence Of Nacl-Salinity On Pb-Uptake Behavior And Growth Of River Red Gum Tree (Eucalyptus Camaldulensis Dehnh.), Muhammad Farrakh Nawaz, Sadaf Gul, Muhammad Ayyoub Tanvir, Javaid Akhtar, Samira Chaudary, Irfan Ahmad

Turkish Journal of Agriculture and Forestry

Lead (Pb) is one of the most toxic and persistent elements, with no known biological role. High concentrations of lead enter saline soils through anthropogenic activities and industrial waste. The decontamination of Pb polluted sites through phytoremediation, especially by using woody plants, is an attractive approach. Eucalyptus camaldulensis is a good accumulator of Pb and a recommended tree species for reclamation of saline soils. However, there is very limited knowledge about the Pb-uptake behavior of Eucalyptus camaldulensis under saline conditions. The objective of this study was to examine the simultaneous impact of NaCl salinity and Pb stress on the phytoremedial …

Go to article

Houba Retrotransposon-Based Molecular Markers: A Tool For Variation Analysis In Rice, Gözde Yüzbaşioğlu, Si̇bel Yilmaz, Nermi̇n Gözükirmizi Jan 2016

Houba Retrotransposon-Based Molecular Markers: A Tool For Variation Analysis In Rice, Gözde Yüzbaşioğlu, Si̇bel Yilmaz, Nermi̇n Gözükirmizi

Turkish Journal of Agriculture and Forestry

Rice is one of the most important crop plants as well as a model organism used for genetic studies. Transposons, especially retrotransposons, have a significant impact on the rice genome. A considerable percentage of the rice genome is composed of transposons (about 35%). Thus, transposons are an important internal factor for the genome evolution of rice varieties. In this study, we performed fing?erprint analyses of 37 Oryza sativa L. Cultivars using an IRAP marker. For this purpose, we designed IRAP primers specific to Houba (Tos5/Osr13), RIRE1 and Hopi (Osr27), and Osr30 retrotransposons, the most abundant retrotransposons in the rice genome. …

Go to article

Selected Yield And Qualitative Parameters Of Broccoli In Dependence On Nitrogen,Sulfur, And Zinc Fertilization, Miroslav Slosár, Anton Uher, Alena Andrejiová, Tünde Juríková Jan 2016

Selected Yield And Qualitative Parameters Of Broccoli In Dependence On Nitrogen,Sulfur, And Zinc Fertilization, Miroslav Slosár, Anton Uher, Alena Andrejiová, Tünde Juríková

Turkish Journal of Agriculture and Forestry

The effect of nitrogen (N), sulfur (S), and zinc (Zn) fertilization on the yield quantity and selected qualitative parameters of broccoli was studied in an experiment carried out in Nitra (Slovak Republic) during 2011 and 2012. In this experiment, the following fertilization treatments were tested: control; N200S80 (fertilized to the supply level: 200 kg N ha-1 and 80 kg S ha-1); N200S100 (supply level: 200 kg N ha-1 and 100 kg S ha-1), and N200S100 Zn (supply level: 200 kg N ha-1 and 100 kg S ha-1 + foliar zinc application). Compared to the control treatment, higher broccoli yield was …

Go to article

Impact Of Passive Modified Atmosphere Packaging On Physicochemical Properties, Bioactive Compounds, And Quality Attributes Of Sweet Pomegranates, Nurten Selçuk, Mustafa Erkan Jan 2016

Impact Of Passive Modified Atmosphere Packaging On Physicochemical Properties, Bioactive Compounds, And Quality Attributes Of Sweet Pomegranates, Nurten Selçuk, Mustafa Erkan

Turkish Journal of Agriculture and Forestry

The effects of two different types of modified atmosphere packaging (MAP) on the physicochemical properties, biochemical composition, and storage quality of sweet pomegranate variety Beynarı were investigated during long-term storage. Pomegranates were harvested at the commercial harvest stage and packed in two different commercial types of MAP (MAP1, sealed in packages made of Xtend® film; MAP2, sealed in bags made of ZOEPAC). Unpacked fruits stored in plastic boxes were used as the control. Following packaging treatments, all packed and unpacked fruit samples were stored at 6 ± 0.5 °C and 90 ± 5% relative humidity for 120 days, and they …

Go to article

Genetic Variation And Interrelationships Among Antioxidant, Quality, And Agronomic Traits In Vegetable Amaranth, Umakanta Sarker, Md. Tofazzal Islam, Md. Golam Rabbani, Shinya Oba Jan 2016

Genetic Variation And Interrelationships Among Antioxidant, Quality, And Agronomic Traits In Vegetable Amaranth, Umakanta Sarker, Md. Tofazzal Islam, Md. Golam Rabbani, Shinya Oba

Turkish Journal of Agriculture and Forestry

This investigation was aimed to evaluate 22 promising vegetable amaranth genotypes for antioxidant, leaf quality, and agronomic traits for two test seasons. The experiment was conducted to study the degree of genetic parameters, associations among different traits, and their contribution towards foliage yield. The analysis of variance for twelve traits was found highly significant. High mean, high range of variability, and high genotypic variance were observed for all the traits except content of Ca, protein, and carotenoid. Close differences between genotypic and phenotypic variances and genotypic and phenotypic coefficients of variation were observed for all the traits. High to moderate …

Go to article

The Effects Of Sulfur, Cattle, And Poultry Manure Addition On Soil Phosphorus, Osman Sönmez, Veysel Turan, Cengi̇z Kaya Jan 2016

The Effects Of Sulfur, Cattle, And Poultry Manure Addition On Soil Phosphorus, Osman Sönmez, Veysel Turan, Cengi̇z Kaya

Turkish Journal of Agriculture and Forestry

Use of organic manures for soil amendment has gained renewed attention with growing concerns about sustaining soil productivity. A greenhouse study was carried out to determine the influence of different soil amendments, namely poultry manure (PM), cattle manure (CM), and sulfur (S), on soil P status. The application rates were 0, 4, and 8 t ha-1 for PM; 0, 20, and 40 t ha-1 for CM; and 0, 0.75, and 1.5 t ha-1 for S treatments. Individual additions of PM and CM unlike S significantly affected phosphorus (P) concentrations in soils. The highest Olsen P and total P (TP) were …

Go to article

Antioxidant Potential Of Turkish Pepper (Capsicum Annuum L.) Genotypes At Two Different Maturity Stages, Davut Keleş, Şenay Özgen, Onur Saraçoğlu, Ati̇lla Ata, Mustafa Özgen Jan 2016

Antioxidant Potential Of Turkish Pepper (Capsicum Annuum L.) Genotypes At Two Different Maturity Stages, Davut Keleş, Şenay Özgen, Onur Saraçoğlu, Ati̇lla Ata, Mustafa Özgen

Turkish Journal of Agriculture and Forestry

Improved phytochemicals and antioxidant properties in crops are becoming important traits in many breeding programs. In this study, along with several other horticultural attributes, total phenolic content (TP) and antioxidant capacity (ferric reducing ability of plasma (FRAP) and Trolox equivalent antioxidant capacity (TEAC)) of 52 superior pepper genotypes from the Alata Pepper Breeding Program were examined. The fruits from these plants were harvested at immature and mature stages. The genotypes greatly varied for TP, FRAP, TEAC, soluble solids, vitamin C content, and fruit color as determined by L, a and b values. The range for TP was 319-4047 µg GAE/g …

Go to article

Variations In Floral Characteristics And Scent Composition And The Breeding Potential In Seed-Derived Oil-Bearing Roses (Rosa Damascena Mill.), Hasan Baydar, Sabri̇ Erbaş, Soner Kazaz Jan 2016

Variations In Floral Characteristics And Scent Composition And The Breeding Potential In Seed-Derived Oil-Bearing Roses (Rosa Damascena Mill.), Hasan Baydar, Sabri̇ Erbaş, Soner Kazaz

Turkish Journal of Agriculture and Forestry

Oil-bearing rose (Rosa damascena Mill.) is one of the most strongly scented rose species used in the perfumery and cosmetics industries. This research ultimately aimed to reveal the variation in and evaluate the breeding potential of plants whose seeds were derived from R. damascena, which has only been propagated vegetatively for centuries. The seeds extracted from the mature fruits of open-pollinated plants were stratified at 4 °C for 3 months and sown into vials. Seedlings in pots were grown under greenhouse conditions, and a total of 83 seed-derived plants were finally planted in the experimental field. The 3-year-old progenies were …

Go to article

Photosynthetic Response Of Bromus Inermis In Grasslands Of Different Altitudes, Panagiota Kostopoulou, Maria Karatassiou Jan 2016

Photosynthetic Response Of Bromus Inermis In Grasslands Of Different Altitudes, Panagiota Kostopoulou, Maria Karatassiou

Turkish Journal of Agriculture and Forestry

In Greece, grasslands constitute an important component of montane areas. The aim of the present study was to evaluate the photosynthetic responses of the forage species Bromus inermis at two montane grasslands (Filippaioi, Grammatiko) and a lowland grassland under differential irradiation and CO2 concentration levels. In each area, gas exchange parameters were calculated under: a) ambient conditions along with the measurement of variable to maximal fluorescence, b) low (300 µmol m-2 s-1) and high (1400 µmol m-2 s-1) radiation, and c) ambient (380 µmol mol-1) and high (800 µmol mol-1) CO2 concentrations. In addition, assimilation response curves to different levels …

Go to article

Characterization Of Phenotypic And Nutritional Properties Ofvaluable Amaranthus Cruentus L. Mutants, Andrea Hricova, Jozef Fejer, Gabriela Libiakova, Monika Szabova, Jan Gazo, Alena Gajdosova Jan 2016

Characterization Of Phenotypic And Nutritional Properties Ofvaluable Amaranthus Cruentus L. Mutants, Andrea Hricova, Jozef Fejer, Gabriela Libiakova, Monika Szabova, Jan Gazo, Alena Gajdosova

Turkish Journal of Agriculture and Forestry

Two selected mutant lines, C26 and C82, with highly significant 1000-seed weight and generated through irradiation treatment of Amaranthus cruentus L. 'Ficha', were evaluated and compared to an original nontreated control and reference variety Aztec. The phenotypic traits and biochemical properties of the amaranth seeds were studied. Comparable values for crude protein content, albumins, and globulins fractions and overall coefficients of nutritional quality were found in the evaluated samples. However, C26 showed significantly lower concentrations of celiac-related prolamins and glutelins in comparison with the control sample. Both of the mutagenesis-derived lines showed consistently superior performance of 1000-seed weight across two …

Go to article

Bread Wheat Responds Salt Stress Better Than Einkorn Wheat Does During Germination, Di̇dem Aslan, Nusret Zenci̇rci̇, Murat Etöz, Bülent Ordu, Sara Bataw Jan 2016

Bread Wheat Responds Salt Stress Better Than Einkorn Wheat Does During Germination, Di̇dem Aslan, Nusret Zenci̇rci̇, Murat Etöz, Bülent Ordu, Sara Bataw

Turkish Journal of Agriculture and Forestry

Salt stress during germination degenerates crop establishment and declines yield in wheat (Triticum subsp.). Against salt (NaCl) stress, we investigated 12 bread (Triticum aestivum L.) and 10 einkorn wheat (T. monococcum subsp. monococcum) entries for germination rate, germinating power, coleoptile length, shoot length, root length, shoot/root length ratio, root fresh weight, root dry weight, and root fresh/dry weigh ratio. An effective blocking in variance analysis improved statistical significance and differentiation between germination stages and wheat entries. Salt total and salt ranking tolerance indices grouped the wheat entries into tolerant (Bayraktar 2000, Gerek 79, İkizce 96, Gün 91, Demir 2000, and …

Go to article

Changes In Berry Quality Of Northern Highbush Blueberry(Vaccinium Corymbosum L.) During The Harvest Season, Zala Zorenc, Robert Veberic, Franci Stampar, Darinka Koron, Maja Mikulic-Petkovsek Jan 2016

Changes In Berry Quality Of Northern Highbush Blueberry(Vaccinium Corymbosum L.) During The Harvest Season, Zala Zorenc, Robert Veberic, Franci Stampar, Darinka Koron, Maja Mikulic-Petkovsek

Turkish Journal of Agriculture and Forestry

As blueberries ripen successively and are commercially harvested over a period of several weeks, their composition may be altered during the harvest. The aim of this study was to compare blueberry fruit composition during the entire harvest season. Fully ripe fruits of two northern highbush blueberry cultivars (Bluecrop and Jersey) were harvested weekly at two different locations. Additionally, the Earliblue cultivar was monitored at a single location. Most of the examined characteristics changed during the harvest season and were cultivar-dependent, with smaller differences observed between sampling locations. Fruit weight of all cultivars decreased with the time of harvest. Levels of …

Go to article

Determination Of Antioxidant, Total Phenolic, Total Carotenoid, Lycopene, Ascorbic Acid, And Sugar Contents Of Citrus Species And Mandarin Hybrids, İhsan Canan, Müttali̇p Gündoğdu, Ubeyi̇t Seday, Celi̇le Ayli̇n Oluk, Zafer Karaşahi̇n, Evren Çağlar Eroğlu, Ebru Yazici, Mustafa Ünlü Jan 2016

Determination Of Antioxidant, Total Phenolic, Total Carotenoid, Lycopene, Ascorbic Acid, And Sugar Contents Of Citrus Species And Mandarin Hybrids, İhsan Canan, Müttali̇p Gündoğdu, Ubeyi̇t Seday, Celi̇le Ayli̇n Oluk, Zafer Karaşahi̇n, Evren Çağlar Eroğlu, Ebru Yazici, Mustafa Ünlü

Turkish Journal of Agriculture and Forestry

This study aimed to determine the antioxidant capacity; the total phenolic, total carotenoid, sugar, and ascorbic acid contents; and some pomological characteristics of Citrus species (Citrus reticulata, Citrus sinensis, and Citrus paradisi) and mandarin (Citrus reticulata) and their new hybrids developed for yield at the Alata Horticultural Research Institute in Mersin, Turkey. With respect to antioxidant capacities, the highest value (45.28 µmol TE/100 g) was determined in Cocktail (Citrus paradisi) cultivar fruits among all examined cultivars and hybrids. We found that 7-19 (Clementine x Kara) mandarin hybrids had the highest total phenolic content (386.81 mg gallic acid equivalent/g) and the …

Go to article

Automated Solid-Substrate Cultivation Of The Anaerobic Bacterium Clostridium Thermocellum, Mathew J. Ruwaya Jan 2016

Automated Solid-Substrate Cultivation Of The Anaerobic Bacterium Clostridium Thermocellum, Mathew J. Ruwaya

Theses and Dissertations--Biosystems and Agricultural Engineering

The organism Clostridium thermocellum grows on cellulosic substrates and produces ethanol, acetate, lactate, formic acid, and CO2. The organic acids produced alter the growth environment in which the bacteria grows and ultimately inhibit bacterial growth. One method which has been used successfully to maintain the system at acceptable growth conditions is to intermittently flush out the spent media and metabolic products and replace with new fermentation media. Our goal was to design and build an automated system that will automatically flush the spent media from the growing culture and resupply new media without manual intervention. An automated control …

Go to article

Institutional Versus Intermediated Buyers: Barriers And Requirements Of Buying Local Food Products, Jennifer Marie Moldovan Jan 2016

Institutional Versus Intermediated Buyers: Barriers And Requirements Of Buying Local Food Products, Jennifer Marie Moldovan

Graduate Theses/Dissertations

Expenditures on locally grown food products are only a small portion of the total food expenditures in the United States. In order to find a way to increase this percentage, this study aims to identify various types of buyers currently participating in the purchase of locally grown food products. Buyers were divided into two groups: institutions and intermediated. A comparison of for both classifications of buyers was done to find the difference in their perceived barriers and requirements for purchasing local food. Determining these differences could help in future policymaking decisions in local food industries. This will also help farmers …

Go to article

Comprehensive Comparative Genomic And Transcriptomic Analyses Of The Legume Genes Controlling The Nodulation Process, Zhenzhen Qiao, Lise Pingault, Mehrnoush Nourbakhsh-Rey, Marc Libault Jan 2016

Comprehensive Comparative Genomic And Transcriptomic Analyses Of The Legume Genes Controlling The Nodulation Process, Zhenzhen Qiao, Lise Pingault, Mehrnoush Nourbakhsh-Rey, Marc Libault

Department of Agronomy and Horticulture: Faculty Publications

Nitrogen is one of the most essential plant nutrients and one of the major factors limiting crop productivity. Having the goal to perform a more sustainable agriculture, there is a need to maximize biological nitrogen fixation, a feature of legumes. To enhance our understanding of the molecular mechanisms controlling the interaction between legumes and rhizobia, the symbiotic partner fixing and assimilating the atmospheric nitrogen for the plant, researchers took advantage of genetic and genomic resources developed across different legume models (e.g., Medicago truncatula, Lotus japonicus, Glycine max, and Phaseolus vulgaris) to identify key regulatory protein coding genes of the nodulation …

Go to article

Comparison Of An Ultra-Low Volume (Ulv) Sprayer Against A Conventional Sprayer, For Foliar Fertiliser And Fungicide Applications In Turfgrass, Jason Connor Ferguson, Roch E. Gaussoin, John A. Eastin, Matthew D. Sousek, Greg R. Kruger Jan 2016

Comparison Of An Ultra-Low Volume (Ulv) Sprayer Against A Conventional Sprayer, For Foliar Fertiliser And Fungicide Applications In Turfgrass, Jason Connor Ferguson, Roch E. Gaussoin, John A. Eastin, Matthew D. Sousek, Greg R. Kruger

Department of Agronomy and Horticulture: Faculty Publications

Two field studies (I and II) at the University of Nebraska-Lincoln: John Seaton Anderson Turfgrass Research Facility near Mead, NE, USA, were conducted to determine if a new ultra-low volume (ULV) sprayer can apply foliar nutrient, growth regulator, and fungicide treatments, in a manner similar to that of a conventional sprayer. Treatments were applied over creeping bentgrass ‘L-93’ (Agrostis stolonifera L.) managed as a fairway at 561 l · ha−1 and 47 l · ha−1 with the conventional and ULV sprayer, respectfully. Data were collected for chlorophyll content with a chlorophyll meter, and for the normalised difference …

Go to article

Using Zeolite For Soil Moisture Retention And Salinity Control, Mark Torres Jan 2016

Using Zeolite For Soil Moisture Retention And Salinity Control, Mark Torres

Open Access Theses & Dissertations

There is a great need in the desert southwest United States for exploring ways to save water in agriculture as it accounts for up to 90 percent of water consumption in many western states (USDA 2016). As surface water reaches critical lows the dependence on ground water has increased leading to the need for deeper wells with higher salt concentrations. The studies conducted for this research included using zeolites from the St Cloud Mining Company in Winston, New Mexico to determine the feasibility of using these zeolites to help and retain moisture in zeolite treated soils. The Volumetric Water Content …

Go to article

Effect Of Interpersonal And Cognitive Stressors On Habituation And The Utility Of Heart Rate Variability To Measure Habituation, Denise M. Feda, James N. Roemmich Jan 2016

Effect Of Interpersonal And Cognitive Stressors On Habituation And The Utility Of Heart Rate Variability To Measure Habituation, Denise M. Feda, James N. Roemmich

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Habituation is a decrease in responding to a repeated stimulus. Operant responding and salivation measure habituation in eating behaviour research. Stress may increase eating by acting as a distractor, yielding spontaneous recovery and prolonging responding for food. Our research tested differences in the ability of cognitive and inter- personal stressors to recover responding for food. We also tested heart rate variability (HRV) as a measure of habituation. Twenty women worked for portions of macaroni and cheese for 15 trials on three separate laboratory visits. Between the 12th and 13th trial, one of three different stressor types (speech, stroop and subtraction) …

Go to article

Proteomic Profiling Of Maize Opaque Endosperm Mutants Reveals Selective Accumulation Of Lysine-Enriched Proteins, Kyla J. Morton, Shangang Jia, Chi Zhang, David R. Holding Jan 2016

Proteomic Profiling Of Maize Opaque Endosperm Mutants Reveals Selective Accumulation Of Lysine-Enriched Proteins, Kyla J. Morton, Shangang Jia, Chi Zhang, David R. Holding

Department of Agronomy and Horticulture: Faculty Publications

Reduced prolamin (zein) accumulation and defective endoplasmic reticulum (ER) body formation occurs in maize opaque endosperm mutants opaque2 (o2), floury2 (fl2), defective endosperm*B30 (DeB30), and Mucronate (Mc), whereas other opaque mutants such as opaque1 (o1) and floury1 (fl1) are normal in these regards. This suggests that other factors contribute to kernel texture. A liquid chromatography approach coupled with tandem mass spectrometry (LC-MS/MS) proteomics was used to compare non-zein proteins of nearly isogenic opaque endosperm mutants. In total, 2762 proteins were identified that were enriched for biological processes such …

Go to article

First Prev Next Last