细化搜索
结果 201-210 的 239
Agricultural Geography Analysis of Carob Tree (Ceratonia siliqua L.) from Turkey 全文
2016
Güven Şahin | Nuran Taşlıgil
Carob tree (Ceratonia siliqua L.) is one of the oldest trees in the world and has been cultivated from civilization of Ancient Persia, especially on the Mediterranean coasts, till nowadays. The fruit of the carob tree (carob bean) are attracting attention in recent years due among others to tits rich nutritional value and use as a substitute and/or alternative for cocoa. Although it has higher sugar content than sugar beet and sugar cane, it is a food that also lowers cholesterol. In addition to its fruit, the plant has interesting morphological qualities. Deep root system of carob tree allows high productivity even in draught conditions; it is an ideal plant in the fight against erosion and one of the most preferred plants while establishing fire-resistant forests. Additionally, because 2016 was declared the International Year of Pulses, it is necessary to draw attention to the carob tree since it is a typical pulse plant. The status of Turkey, as the 5th carob producer in the world, was analysed in this context, in terms of Agricultural Geography. The existing and necessary practices in carob production are discussed based on the data from the studies conducted in Antalya and Mersin in 2015 and previous ones.
显示更多 [+] 显示较少 [-]Stability Analysis for Seed Yield over Environments in Coriander 全文
2016
Sangeeta Yadav | Arun Kumar Barholia
Thirty five genotypes of coriander (Coriandrum sativum L.) were tested in four artificially created environments to judge their stability in performance of seed yield. The differences among genotypes and environments were significant for seed yield. Stability parameters varied considerably among the tested genotypes in all the methods used. The variation in result in different methods was due to non-fulfillment of assumption of different models. However, AMMI analysis provides the information on main effects as well as interaction effects and depiction of PCA score gives better understanding of the pattern of genotype – environment interaction. The sum of squares due to PCAs was also used for the computation of AMMI stability values for better understanding of the adaptability behavior of genotypes hence, additive main effects and multiplicative interaction (AMMI) model was most appropriate for the analysis of G x E interactions for seed yield in coriander. Genotypes RVC 15, RVC 19, RVC 22, RVC 25 and Panipat local showed wider adaptability while, Simpo S 33 exhibited specific adaptability to favourable conditions of high fertility. These genotypes could be utilized in breeding programmers to transfer the adaptability genes into high yielding genetic back ground of coriander.
显示更多 [+] 显示较少 [-]Growth, Yield and Nutrient Uptake Capacity of Rice under Different Sulphur Levels 全文
2016
A. K. M. Sajjadul Islam | Md. Shohel Rana | Dr. Md. Mazibur Rahman | Md. Jainul Abedin Mian | Md. Mezanur Rahman | Md. Asif Rahman | Nazmun Naher
Because of using sulphur free fertilizer, rice crop facing tremendous sulphur (S) deficiency throughout the world as well as in Bangladesh. However, farmers of Bangladesh often overlook the importance of sulphur fertilization on rice yield. Therefore, the present study was conducted to investigate the influence of different levels of sulphur on growth, yield attributes and uptake of N, P, K and S by grain and straw of BRRI dhan41 rice variety. The experiment was laid out in randomized complete block design with three replication and eight treatments including control. The result of the study revealed that the highest plant height, panicle length, filled grain was found in T1 (50% RFD of S) treatment, while the utmost number of effective tiller and straw yield was recorded in T5 (150% RFD of S) treatment. Interestingly, maximum grain yield as well as uptake of N, P, K and S by grain and straw was significantly higher in T6 (175% RFD of S) treatment. The highest grain yield of T6 treatment might be due to maximum nutrient use efficiency. However, in all cases control treatment (T0) gave the worst result. The present study clearly indicates that higher rates (175% of the recommended dose) of S along with other fertilizers may be recommended for better growth and yield of BRRI dhan41 in Bangladesh soil.
显示更多 [+] 显示较少 [-]Quality of Plain Set Yoghurt as affected by Levels of Ultrafiltration Concentration of Milk and Inoculum of Yoghurt Culture 全文
2016
narayana Mudiyanselage Nayana Kumari Narayana | Vijay Kumar Gupta
Quality of plain set yoghurt was investigated by varying levels of ultrafiltration concentration of cow skim milk (1-without ultrafiltration, 1.5 and 2 folds) and inoculum (2, 2.5 and 3%) of yoghurt culture (Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus 1:1). Titratable acidity development and pH reduction were significantly faster during incubation of yoghurt with increasing ultrafiltration concentration level and inoculum level. Increased ultrafiltration concentration level decreased spontaneous whey syneresis, but increased water holding capacity and firmness of the product significantly. Body & texture and overall acceptability scores were significantly better in yoghurts prepared from 1.5 fold concentrated milk irrespective of the inoculum level studied. Inoculum level did not show any significant effect on the quality of yoghurt, but higher inoculum level decreased the incubation period significantly. Optimized product was obtained with 1.5 fold concentrated skim milk standardized to 3.3% fat and incubated with 2% inoculum level in about five and a half hour of incubation. Optimized product had 13.60±0.02% total solids, 3.31±0.01% fat, 5.27±0.04% protein, 4.20±0.03% lactose and 0.82±0.02% ash. Whey syneresis, water holding capacity and firmness in optimized product were nil, 63.49% and 1.89 N, respectively. Thus, high quality plain yoghurt could be prepared by employing ultrafiltration, without addition of stabilizers, which is otherwise widely used commercially for the manufacture of yoghurt to control its wheying off and body.
显示更多 [+] 显示较少 [-]Adsorption-Desorption of Hexaconazole in Soils with Respect to Soil Properties, Temperature, and pH 全文
2016
Maznah Zainol | Halimah Muhamad | Ismail Bin Sahid | Idris Abu Seman
The effect of temperature and pH on adsorption-desorption of fungicide hexaconazole was studied in two Malaysian soil types; namely clay loam and sandy loam. The adsorption-desorption experiment was conducted using the batch equilibration technique and the residues of hexaconazole were analysed using the GC-ECD. The results showed that the adsorption-desorption isotherms of hexaconazole can be described with Freundlich equation. The Freundlich sorption coefficient (Kd) values were positively correlated to the clay and organic matter content in the soils. Hexaconazole attained the equilibrium phase within 24 h in both soil types studied. The adsorption coefficient (Kd) values obtained for clay loam soil and sandy loam soil were 2.54 mL/g and 2.27 mL/g, respectively, indicating that hexaconazole was weakly sorbed onto the soils due to the low organic content of the soils. Regarding thermodynamic parameters, the Gibb’s free energy change (ΔG) analysis showed that hexaconazole adsorption onto soil was spontaneous and exothermic, plus it exhibited positive hysteresis. A strong correlation was observed between the adsorption of hexaconazole and pH of the soil solution. However, temperature was found to have no effect on the adsorption of hexaconazole onto the soils; for the range tested.
显示更多 [+] 显示较少 [-]The Applications to Increase Drought Tolerance of Plants 全文
2016
İlkay Yavaş | Hüseyin Nail | Aydın Ünay
Terminal drought is a major threat that adversely affects crop growth and metabolism, and limits the yield. Water stress causes many morphological, physiological and biochemical changes in plants. Plant height, root length, leaf area, fresh and dry biomass are reduced under drought stress. Besides, water stress causes the reduction of relative water content, the closure of stomata and decrease in photosynthesis and chlorophyll content. Antioxidant enzymes such as glutathione reductase (GR), superoxide dismutase (SOD), peroxidase (POD), ascorbat peroxidase (ASC), glutatiton (GSH), catalase (CAT) enzyme activities, the indicator of oxidative stress malondialdehyde (MDA) and proline levels also changes in drought conditions. Nutrient uptake by plants is prevented or restricted before grain development stage during drought conditions. Therefore the application of plant nutrients followed by micronutrient remobilization within plant is great importance. Osmoprotectants (cytokinin, mannitol, abscisic acid, proline, glycine betaine, polyamine etc.) detoxify adverse effect of reactive oxygen species (ROS) and alleviate drought stress. Exogenous plant growth promoting rhizobacteria (PGPR) application encourage plant growth by colonizing the plant root and increase plants’ resistance to water stress. Besides, the farmers can use conservation tillage system in dry periods.
显示更多 [+] 显示较少 [-]Effect of Sous Vide Cooking Method on Nutritional Values of Vegetables 全文
2016
Serap Coşansu | Özlem Kıymetli
Sous vide is a cooking method in which food is heat processed after vacuum packaging in heat stable pouches. Meat, chicken, fish and vegetables can be cooked by this method; even meals containing these ingredients can be preserved by heat processing after precooking and vacuum packaging steps. Meanwhile sous vide cooking is a preservation method that the product is cooled rapidly after heat processing and can be stored for long periods. By this method, food can be cooked in vacuum packed without losing its flavour, taste and nutritional value. In this review, the effects of sous vide cooking on the major nutrients of vegetables such as antioxidant compounds and vitamins will be mentioned.
显示更多 [+] 显示较少 [-]Genetic Variation for Biofortifying The Maize Grain 全文
2016
Gönül Cömertpay | Faheem Shehzad Baloch | Halil Erdem
The maize germplasm variation is valuable for breeders to develop elite hybrids with increased mineral contents in the maize grain to eliminate mineral malnutrition, which is referred as HIDEN HUNGER. Therefore, we aimed to determine mineral element diversity of maize landraces collected from different geographical regions of Turkey. There was huge diversity for all mineral traits and other quality traits. Turkish maize landraces showed high variation for Zn (17-41.34 mg kg-1), Fe (13.52-29.63 mg kg-1), Cu (0.77-3.34 mg kg-1), Mn (5.68-14.78 mg kg-1), Protein (6.6-11.6%), starch content (73.3-80.0%), oil content (3.15-4.7%) and thousand grain weight (177.0-374.9g). There were significant positive and negative associations among mineral elements and quality traits. The principal component analysis differentiated some maize landraces from the rest, and these diverse landraces could be used in the maize breeding program with biofortification purpose.
显示更多 [+] 显示较少 [-]Microbiological and Chemical Quality of Feta Cheeses Consumed in Van 全文
2016
Enise Akel | Süleyman Alemdar
This study is aimed to determine the microbiological and chemical quality of Feta cheeses which are consumed in Van city center. In this study, a total of 50 Feta cheese samples were used as material. At the result of microbiological analysis of Feta cheeses, the mean number of total aerobic mesophilic bacteria, lactic acid bacteria, coliform, Escherichia coli, micrococcus/staphylococcus, coagulase positive Staphylococcus aureus, Clostridium perfringens, Enterobacteriaceae, yeast and mold were found as 5.49 log cfu/g, 5.20 log cfu/g, 0.78 log cfu/g, 0.10 log cfu/g, 0.58 log cfu/g, 0.53 log cfu/g, 0.08 log cfu/g, 0.96 log cfu/g, 5.18 log cfu/g, respectively. At the result of chemical analysis, the mean value of pH, titratable acidity, dry matter, fat, fat in dry matter, salt and salt in dry matter were found as 4.38, 1.41% LA, 41.21%, 18.12%, 44.18%, 8.36% and 20.42%, respectively. All of the samples were found conforming to the standards in terms of titratable acidity. On the other hand, 8%, 52% and 100% of samples were found unsuitable in terms of coagulase positive S. aureus, pH and salt in dry matter, respectively. As a result, it was concluded that Feta cheeses examined are inadequate in terms of microbiological and chemical quality and they could pose a risk to producers and consumers. The implementation of the HACCP system based on GMP at all stages of the food chain will play an active role for food safety, public health and the protection of consumer rights.
显示更多 [+] 显示较少 [-]Effects of Rosemary (Rosmarinus officinalis L.) Essential Oil Supplemented Diets on Cholesterol and Fatty Acid Levels of Chicken Eggs 全文
2016
Tülay Çimrin | Murat Demirel
This experiment was carried out to investigate the effects of variant doses of rosemary (Rosmarinus officinalis L.) essential oils (REO), vitamin E (α‐tocopheryl acetate) and antibiotic (chlortetracyclin) on the concentration of vitamin E, fatty acid composition, cholesterol levels in the yolk. In this experiment, 32 weeks old Bovans genotype and 240 white laying hens were randomly separated to six treatment groups with five replicas. While the control group was fed with basal diet the treatment groups were supplemented with 500 mg/kg antibiotics; 200 mg/kg vitamin E; 100, 200, and 300 mg/kg REO to basal diet for 90 consecutive days. The results showed that addition of antibiotics, vitamin E and REO to the diet had no effects on egg cholesterol, while fatty acid composition and vitamin E contents of the yolk were significantly affected. Addition of 100 mg/kg REO to the diet increased total mono unsaturated fatty acids (MUFA) by increasing oleic acid level but decreased Polyunsaturated fatty acids (PUFA) by decreasing linoleic acid content of the yolk. Addition of 200 mg/kg vitamin E to the diet significantly increased vitamin E content of egg. The study showed that the changes in yolk fatty acid composition and vitamin E content due to the feed additives, could affect positively in chemical composition of eggs. In conclusion, 100 mg/kg REO and 200 mg/kg vitamin E supplementation to the diet might cause high antioxidant capacity and could help to produce eggs that were more resistant to lipid oxidation.
显示更多 [+] 显示较少 [-]